TY  - JOUR
AU  - Petrović, Violeta
AU  - Opačić-Galić, Vanja
AU  - Jokanović, Vukoman R.
AU  - Sopta, Jelena
AU  - Prokić, Bogomir Bolka
AU  - Živković, Slavoljub
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9159
AB  - The aim of the study was to evaluate inflammatory tissue reactions and the formation of calcified tissue after implantation of experimental nanostructured calcium silicate cement (CS) and hydroxyapatite with calcium silicate cement (HA-CS) into root canals of rabbits' teeth. The study was conducted on four rabbits of the genus Oryctolagus cuniculus. After instrumentation and irrigation, the root canals of the central incisors were dried and filled with CS, HA-CS and control material (MTA Angelus). The animals were sacrificed after 28 days. After histological preparation and hematoxylin-eosin staining, tissue samples were evaluated for the intensity and extension of inflammatory tissue reaction; continuity, morphology and thickness of the newly formed calcified tissue; and presence of giant cells, materials particles and microorganisms. Kruskal Wallis and Dunn's post hoc test were used for data analysis (α=0.05). There were no significant differences in the intensity of inflammatory reactions between CS, HA-CS and MTA control. HA-CS showed significantly better results than MTA and CS with respect to continuity of the newly formed calcified tissue (P=0.003 and P=0.010, respectively). Significant differences in thickness of the calcified tissue existed between CS and MTA (P=0.004) and between HA-CS and MTA (P=0.012). Application of CS and HA-CS resulted in minimal inflammatory tissue response, similar to the MTA control. CS and HA-CS were more efficient than MTA in supporting hard tissue formation. The best organized newly formed calcified tissue was seen after HA-CS application.
AB  - Cilj rada je bio da se ispitaju Kanali korena centralnih sekutića su posle instrumentacije, ispiranja i sušenja napunjeni materijalima CS, HA-CS i kontrolnim materijalom, mineral trioksid agregatom (MTA). Životinje su žrtvovane posle 28 dana. Posle histološke pripreme, uzorci tkiva su analizirani u pogledu inteziteta i raširenosti zapaljenske reakcije; kontinuiteta, morfologije i debljine novoformiranog kalcifi kovanog tkiva; prisustva džinovskih ćelija, čestica materijala i mikroorganizama. Dobijeni rezultati su statistički obrađeni (α = 0,05) Nisu uočene statistički značajne razlike u intezitetu zapaljenske reakcije između CS, HA-CS i MTA. U pogledu kontinuiteta novostvorenog kalcifi kovanog tkiva HA-CS je pokazao bolje rezultate u odnosu na MTA i CS (p=0,003 i p=0,010). Značajne razlike utvrđene su u pogledu debljine kalcifi kovanog tkiva između CS i MTA (p=0,004), kao i HA-CS i MTA (p=0,012). Aplikacija materijala CS i HA-CS je rezultirala minimalnom zapaljenskom reakcijom tkiva, slično kontrolnom materijalu (MTA). CS i HA-CS su bili efi kasniji u pogledu stimulacije formiranja kalcifi kovanog tkiva u odnosu na MTA. Najbolje organizovano novoformirano tkivo uočeno je posle aplikacije materijala HA-CS. zapaljenske reakcije u periradikularnom tkivu i formiranje kalcifi kovanog tkiva posle implantacije eksperimentalnih, nanostrukturnih cemenata na bazi kalcijum silikata (CS) i mešavine hidroksiapatita i kalcijum silikata (HA-CS) u kanale korena zuba kunića.
T2  - Acta Veterinaria, Beograd
T1  - Histological Evaluation of Periradicular Tissue Inflammatory Reactions and Calcified Tissue Formations after Implantation of Experimental Calcium Silicate and Hydroxyapatite Based Nanostructural Cements into Root Canals of Rabbits Teeth
T1  - Histološka analiza zapaljenskih reakcija u periradikularnom tkivu i formiranja kalcifikovanog tkiva posle implantacije eksperimentalnih nanostrukturnih cemenata na bazi kalcijum silikata i hidroksiapatita u kanale korena zuba kunića
VL  - 71
IS  - 1
SP  - 85
EP  - 97
DO  - 10.2478/acve-2021-0006
ER  - 

@article{
author = "Petrović, Violeta and Opačić-Galić, Vanja and Jokanović, Vukoman R. and Sopta, Jelena and Prokić, Bogomir Bolka and Živković, Slavoljub",
year = "2021",
abstract = "The aim of the study was to evaluate inflammatory tissue reactions and the formation of calcified tissue after implantation of experimental nanostructured calcium silicate cement (CS) and hydroxyapatite with calcium silicate cement (HA-CS) into root canals of rabbits' teeth. The study was conducted on four rabbits of the genus Oryctolagus cuniculus. After instrumentation and irrigation, the root canals of the central incisors were dried and filled with CS, HA-CS and control material (MTA Angelus). The animals were sacrificed after 28 days. After histological preparation and hematoxylin-eosin staining, tissue samples were evaluated for the intensity and extension of inflammatory tissue reaction; continuity, morphology and thickness of the newly formed calcified tissue; and presence of giant cells, materials particles and microorganisms. Kruskal Wallis and Dunn's post hoc test were used for data analysis (α=0.05). There were no significant differences in the intensity of inflammatory reactions between CS, HA-CS and MTA control. HA-CS showed significantly better results than MTA and CS with respect to continuity of the newly formed calcified tissue (P=0.003 and P=0.010, respectively). Significant differences in thickness of the calcified tissue existed between CS and MTA (P=0.004) and between HA-CS and MTA (P=0.012). Application of CS and HA-CS resulted in minimal inflammatory tissue response, similar to the MTA control. CS and HA-CS were more efficient than MTA in supporting hard tissue formation. The best organized newly formed calcified tissue was seen after HA-CS application., Cilj rada je bio da se ispitaju Kanali korena centralnih sekutića su posle instrumentacije, ispiranja i sušenja napunjeni materijalima CS, HA-CS i kontrolnim materijalom, mineral trioksid agregatom (MTA). Životinje su žrtvovane posle 28 dana. Posle histološke pripreme, uzorci tkiva su analizirani u pogledu inteziteta i raširenosti zapaljenske reakcije; kontinuiteta, morfologije i debljine novoformiranog kalcifi kovanog tkiva; prisustva džinovskih ćelija, čestica materijala i mikroorganizama. Dobijeni rezultati su statistički obrađeni (α = 0,05) Nisu uočene statistički značajne razlike u intezitetu zapaljenske reakcije između CS, HA-CS i MTA. U pogledu kontinuiteta novostvorenog kalcifi kovanog tkiva HA-CS je pokazao bolje rezultate u odnosu na MTA i CS (p=0,003 i p=0,010). Značajne razlike utvrđene su u pogledu debljine kalcifi kovanog tkiva između CS i MTA (p=0,004), kao i HA-CS i MTA (p=0,012). Aplikacija materijala CS i HA-CS je rezultirala minimalnom zapaljenskom reakcijom tkiva, slično kontrolnom materijalu (MTA). CS i HA-CS su bili efi kasniji u pogledu stimulacije formiranja kalcifi kovanog tkiva u odnosu na MTA. Najbolje organizovano novoformirano tkivo uočeno je posle aplikacije materijala HA-CS. zapaljenske reakcije u periradikularnom tkivu i formiranje kalcifi kovanog tkiva posle implantacije eksperimentalnih, nanostrukturnih cemenata na bazi kalcijum silikata (CS) i mešavine hidroksiapatita i kalcijum silikata (HA-CS) u kanale korena zuba kunića.",
journal = "Acta Veterinaria, Beograd",
title = "Histological Evaluation of Periradicular Tissue Inflammatory Reactions and Calcified Tissue Formations after Implantation of Experimental Calcium Silicate and Hydroxyapatite Based Nanostructural Cements into Root Canals of Rabbits Teeth, Histološka analiza zapaljenskih reakcija u periradikularnom tkivu i formiranja kalcifikovanog tkiva posle implantacije eksperimentalnih nanostrukturnih cemenata na bazi kalcijum silikata i hidroksiapatita u kanale korena zuba kunića",
volume = "71",
number = "1",
pages = "85-97",
doi = "10.2478/acve-2021-0006"
}

Petrović, V., Opačić-Galić, V., Jokanović, V. R., Sopta, J., Prokić, B. B.,& Živković, S.. (2021). Histological Evaluation of Periradicular Tissue Inflammatory Reactions and Calcified Tissue Formations after Implantation of Experimental Calcium Silicate and Hydroxyapatite Based Nanostructural Cements into Root Canals of Rabbits Teeth. in Acta Veterinaria, Beograd, 71(1), 85-97.
https://doi.org/10.2478/acve-2021-0006

Petrović V, Opačić-Galić V, Jokanović VR, Sopta J, Prokić BB, Živković S. Histological Evaluation of Periradicular Tissue Inflammatory Reactions and Calcified Tissue Formations after Implantation of Experimental Calcium Silicate and Hydroxyapatite Based Nanostructural Cements into Root Canals of Rabbits Teeth. in Acta Veterinaria, Beograd. 2021;71(1):85-97.
doi:10.2478/acve-2021-0006 .

Petrović, Violeta, Opačić-Galić, Vanja, Jokanović, Vukoman R., Sopta, Jelena, Prokić, Bogomir Bolka, Živković, Slavoljub, "Histological Evaluation of Periradicular Tissue Inflammatory Reactions and Calcified Tissue Formations after Implantation of Experimental Calcium Silicate and Hydroxyapatite Based Nanostructural Cements into Root Canals of Rabbits Teeth" in Acta Veterinaria, Beograd, 71, no. 1 (2021):85-97,
https://doi.org/10.2478/acve-2021-0006 . .

TY  - JOUR
AU  - Tomašević, Anđelka
AU  - Marinković, Aleksandar D.
AU  - Mijin, Dušan Ž.
AU  - Radišić, Marina
AU  - Porobić, Slavica
AU  - Prlainović, Nevena
AU  - Gašić, Slavica
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9671
AB  - Photocatalytic degradation of the carbamate insecticide methomyl and its commercial product Lannate-90 in aqueous suspension of TiO2 and ZnO using an Osram ultra-vitalux lamp (315-400 nm) was investigated. The objective of the investigation was to study and compare the rates of photochemical degradation of the pure active compound and its formulated product in order to find out the impact of inert ingredients on degradation processes. The photochemical degradation of pure methomyl was found to be slower than the degradation of its commercial product Lannate-90. Photodegradation was investigated by UV-Vis spectrometry and HPLC, while mineralization was monitored using IC and TOC analyses. Light absorption capabilities of catalysts were characterized by ultraviolet-visible diffuse reflectance spectroscopy method, while the stability of catalysts was studied by infrared analyses. Degradation products of methomyl and its formulated product were identified by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) results and tentative photodegradation pathways were proposed.
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - A study of photocatalytic degradation of methomyl and its commercial product lannate-90
VL  - 26
IS  - 3
SP  - 237
EP  - 247
DO  - 10.2298/CICEQ190424002T
ER  - 

@article{
author = "Tomašević, Anđelka and Marinković, Aleksandar D. and Mijin, Dušan Ž. and Radišić, Marina and Porobić, Slavica and Prlainović, Nevena and Gašić, Slavica",
year = "2020",
abstract = "Photocatalytic degradation of the carbamate insecticide methomyl and its commercial product Lannate-90 in aqueous suspension of TiO2 and ZnO using an Osram ultra-vitalux lamp (315-400 nm) was investigated. The objective of the investigation was to study and compare the rates of photochemical degradation of the pure active compound and its formulated product in order to find out the impact of inert ingredients on degradation processes. The photochemical degradation of pure methomyl was found to be slower than the degradation of its commercial product Lannate-90. Photodegradation was investigated by UV-Vis spectrometry and HPLC, while mineralization was monitored using IC and TOC analyses. Light absorption capabilities of catalysts were characterized by ultraviolet-visible diffuse reflectance spectroscopy method, while the stability of catalysts was studied by infrared analyses. Degradation products of methomyl and its formulated product were identified by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) results and tentative photodegradation pathways were proposed.",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "A study of photocatalytic degradation of methomyl and its commercial product lannate-90",
volume = "26",
number = "3",
pages = "237-247",
doi = "10.2298/CICEQ190424002T"
}

Tomašević, A., Marinković, A. D., Mijin, D. Ž., Radišić, M., Porobić, S., Prlainović, N.,& Gašić, S.. (2020). A study of photocatalytic degradation of methomyl and its commercial product lannate-90. in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 26(3), 237-247.
https://doi.org/10.2298/CICEQ190424002T

Tomašević A, Marinković AD, Mijin DŽ, Radišić M, Porobić S, Prlainović N, Gašić S. A study of photocatalytic degradation of methomyl and its commercial product lannate-90. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2020;26(3):237-247.
doi:10.2298/CICEQ190424002T .

Tomašević, Anđelka, Marinković, Aleksandar D., Mijin, Dušan Ž., Radišić, Marina, Porobić, Slavica, Prlainović, Nevena, Gašić, Slavica, "A study of photocatalytic degradation of methomyl and its commercial product lannate-90" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 26, no. 3 (2020):237-247,
https://doi.org/10.2298/CICEQ190424002T . .

TY  - JOUR
AU  - Mladenović, Nataša
AU  - Kljajević, Ljiljana M.
AU  - Nenadović, Snežana S.
AU  - Ivanović, Marija M.
AU  - Čalija, Bojan
AU  - Gulicovski, Jelena J.
AU  - Trivunac, Katarina V.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8561
AB  - Fundamental research of inorganic polymers prepared from available aluminosilicate precursors represent an innovative class of materials characterized by low energy consumption for production. This is just one of the reasons why their use is focused in protecting the environment for removing of heavy metals from aqueous solutions. The concentration of hydroxide as activator solution plays an important role in the geopolymerization process. The present study examined the use of geopolymer materials, obtained in reaction of geopolymerizations of metakaolin as precursor activated with NaOH concentration 2.0, 4.0, 6.0 and 8.0 mol/dm3 for removal of cadmium ions from aqueous solutions. The structure and properties of the obtained geopolymer samples were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and diffuse reflection infrared spectroscopy (DRIFTS). To investigate the surface charge of geopolymers the zeta potential measurements were performed. Batch adsorption experiments conducted at room temperature (23 ± 1 °C) showed that the adsorption pattern followed the Freundlich isotherm model. The maximum removal of cadmium obtained from batch studies was 84.1% for GP6M at pH ≈ 6.7. The results generally showed that geopolymer samples could be considered as a potential adsorbent for cadmium removal from aqueous solutions. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
T2  - Journal of Inorganic and Organometallic Polymers and Materials
T1  - The Applications of New Inorganic Polymer for Adsorption Cadmium from Waste Water
VL  - 30
IS  - 2
SP  - 554
EP  - 563
DO  - 10.1007/s10904-019-01215-y
ER  - 

@article{
author = "Mladenović, Nataša and Kljajević, Ljiljana M. and Nenadović, Snežana S. and Ivanović, Marija M. and Čalija, Bojan and Gulicovski, Jelena J. and Trivunac, Katarina V.",
year = "2020",
abstract = "Fundamental research of inorganic polymers prepared from available aluminosilicate precursors represent an innovative class of materials characterized by low energy consumption for production. This is just one of the reasons why their use is focused in protecting the environment for removing of heavy metals from aqueous solutions. The concentration of hydroxide as activator solution plays an important role in the geopolymerization process. The present study examined the use of geopolymer materials, obtained in reaction of geopolymerizations of metakaolin as precursor activated with NaOH concentration 2.0, 4.0, 6.0 and 8.0 mol/dm3 for removal of cadmium ions from aqueous solutions. The structure and properties of the obtained geopolymer samples were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and diffuse reflection infrared spectroscopy (DRIFTS). To investigate the surface charge of geopolymers the zeta potential measurements were performed. Batch adsorption experiments conducted at room temperature (23 ± 1 °C) showed that the adsorption pattern followed the Freundlich isotherm model. The maximum removal of cadmium obtained from batch studies was 84.1% for GP6M at pH ≈ 6.7. The results generally showed that geopolymer samples could be considered as a potential adsorbent for cadmium removal from aqueous solutions. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.",
journal = "Journal of Inorganic and Organometallic Polymers and Materials",
title = "The Applications of New Inorganic Polymer for Adsorption Cadmium from Waste Water",
volume = "30",
number = "2",
pages = "554-563",
doi = "10.1007/s10904-019-01215-y"
}

Mladenović, N., Kljajević, L. M., Nenadović, S. S., Ivanović, M. M., Čalija, B., Gulicovski, J. J.,& Trivunac, K. V.. (2020). The Applications of New Inorganic Polymer for Adsorption Cadmium from Waste Water. in Journal of Inorganic and Organometallic Polymers and Materials, 30(2), 554-563.
https://doi.org/10.1007/s10904-019-01215-y

Mladenović N, Kljajević LM, Nenadović SS, Ivanović MM, Čalija B, Gulicovski JJ, Trivunac KV. The Applications of New Inorganic Polymer for Adsorption Cadmium from Waste Water. in Journal of Inorganic and Organometallic Polymers and Materials. 2020;30(2):554-563.
doi:10.1007/s10904-019-01215-y .

Mladenović, Nataša, Kljajević, Ljiljana M., Nenadović, Snežana S., Ivanović, Marija M., Čalija, Bojan, Gulicovski, Jelena J., Trivunac, Katarina V., "The Applications of New Inorganic Polymer for Adsorption Cadmium from Waste Water" in Journal of Inorganic and Organometallic Polymers and Materials, 30, no. 2 (2020):554-563,
https://doi.org/10.1007/s10904-019-01215-y . .

TY  - CHAP
AU  - Opačić-Galić, Vanja
AU  - Petrović, Violeta
AU  - Popović-Bajić, Marijana
AU  - Jokanović, Vukoman R.
AU  - Živković, Slavoljub
AU  - Nikolić, Biljana
AU  - Mitić-Ćulafić, Dragana
PY  - 2018
UR  - http://link.springer.com/10.1007/978-3-319-97634-1_13
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8129
PB  - Springer International Publishing
T2  - Dental Applications of Nanotechnology
T1  - Physical Properties and Biocompatibility of Nanostructural Biomaterials Based on Active Calcium Silicate Systems and Hydroxyapatite
SP  - 247
EP  - 271
DO  - 10.1007/978-3-319-97634-1_13
ER  - 

@inbook{
author = "Opačić-Galić, Vanja and Petrović, Violeta and Popović-Bajić, Marijana and Jokanović, Vukoman R. and Živković, Slavoljub and Nikolić, Biljana and Mitić-Ćulafić, Dragana",
year = "2018",
publisher = "Springer International Publishing",
journal = "Dental Applications of Nanotechnology",
booktitle = "Physical Properties and Biocompatibility of Nanostructural Biomaterials Based on Active Calcium Silicate Systems and Hydroxyapatite",
pages = "247-271",
doi = "10.1007/978-3-319-97634-1_13"
}

Opačić-Galić, V., Petrović, V., Popović-Bajić, M., Jokanović, V. R., Živković, S., Nikolić, B.,& Mitić-Ćulafić, D.. (2018). Physical Properties and Biocompatibility of Nanostructural Biomaterials Based on Active Calcium Silicate Systems and Hydroxyapatite. in Dental Applications of Nanotechnology
Springer International Publishing., 247-271.
https://doi.org/10.1007/978-3-319-97634-1_13

Opačić-Galić V, Petrović V, Popović-Bajić M, Jokanović VR, Živković S, Nikolić B, Mitić-Ćulafić D. Physical Properties and Biocompatibility of Nanostructural Biomaterials Based on Active Calcium Silicate Systems and Hydroxyapatite. in Dental Applications of Nanotechnology. 2018;:247-271.
doi:10.1007/978-3-319-97634-1_13 .

Opačić-Galić, Vanja, Petrović, Violeta, Popović-Bajić, Marijana, Jokanović, Vukoman R., Živković, Slavoljub, Nikolić, Biljana, Mitić-Ćulafić, Dragana, "Physical Properties and Biocompatibility of Nanostructural Biomaterials Based on Active Calcium Silicate Systems and Hydroxyapatite" in Dental Applications of Nanotechnology (2018):247-271,
https://doi.org/10.1007/978-3-319-97634-1_13 . .

TY  - CONF
AU  - Vukčević, Marija
AU  - Maletić, Marina
AU  - Kalijadis, Ana
AU  - Babić, Biljana
AU  - Đurkić, Tatjana
AU  - Laušević, Mila
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11032
AB  - Zagađenje vodenih tokova teškim metalima je jedan od najakutnijih ekoloških
problema današnjice. S obzirom na to da teški metali nisu biorazgradivi, oni se akumuliraju
u životnoj sredini i na taj način ulaze u lanac ishrane ljudi i životinja, pa kao veoma toksične
materije, mogu izazivati niz opasnih i često neizlečivih bolesti. Iz tog razloga, istraživači
godinama u nazad razvijaju nove i usavršavaju postojeće tehnike za prečišćavanje otpadnih
voda od ovih zagađujućih materija [1]. Za prečišćavanje vode zagađene teškim metalima
mogu se koristiti različite metode: hemijska precipitacija, elektrohemijski tretmani, filtracija,
reverzna osmoza, jonska izmena, membranski procesi, adsorpcija. Jedna od najčešće
korišćenih je adsorpcija, koja zbog mogućnosti regenerisanja adsorbenta, odgovarajućim
desorpcionim procesom, predstavlja veoma efektivnu i ekonomičnu metodu. Zahvaljujući
razvijenoj specifičnoj površini i poroznosti, kao i prisustvu funkcionalnih grupa na površini,
različiti ugljenični materijali pokazuju visoku efikasnost u uklanjanju teških metala iz
vode. Karbon kriogel (CC) predstavlja ugljenični materijal razvijene mezoporoznosti čije
se adsorpcione karakteristike mogu poboljšati optimizacijom i kontrolisanjem parametara
dobijanja. U ovom radu je ispitana mogućnost uklanjanja jona teških metala (Cd2+, Ni2+ i
Zn2+) iz vode, korišćenjem karbon kriogela i hemijski modifikovanog karbon kriogela.
Prvi korak u sintezi karbon kriogela je polikondenzacija rezorcinola i formaldehida,
u prisustvu natrijum-karbonata kao katalizatora. Organski kriogel pripremljen je solgel tehnologijom uz naknadno sušenje postupkom zamrzavanja, dok je karbonizacija
organskog kriogela vršena u inertnoj atmosferi argona na temperaturi od 800 o
C [2]. U
cilju poboljšanja adsorpcionih karakteristika karbon kriogela, izvršeno je hemijsko
modifikovanje korišćenjem 5 M HNO3
. Karakterizacija materijala izvršena je merenjem
specifične površine BET metodom, određivanjem tačke nultog naelektrisanja metodom
masene titracije, kao i određivanjem vrsta funkcionalnih grupa prisutnih na površini
materijala, metodom infracrvene spektroskopije sa Furijeovom transformacijom (FTIR).
Ispitan je uticaj pH vrednosti rastvora, početne koncentracije jona metala u rastvoru, kao i
vremena kontakta na adsorpciju teških metala uzorcima karbon kriogela.Primenjenom hemijskom modifikacijom karbon kriogela ne dolazi do bitnijih
promena u specifičnoj površini i poroznosti materijala. S druge strane, ovim postupkom
dolazi do izmene površinske hemije materijala, uvođenjem novih, i povećanjem broja
postojećih kiselih površinskih grupa, što je pokazano FTIR analizom i smanjenjem
vrednosti tačke nultog naelektrisanja sa pHPZC = 9,3 na pHPZC = 3,1. Adsorpcija jona teških
metala na modifikovanom i nemodifikovanom karbon kriogelu vršena je na pH = 6, jer pri
ovoj pH vrednosti materijali pokazuju najveći adsorpcioni kapacitet, a ujedno je izborom
ove pH izbegnuta precipitacija hidroksida metala. Izmene u hemiji površine dovode i do
izmena adsorpcionih karakteristika karbon kriogela. Kako površinske grupe predstavljaju
aktivna mesta za adsorpciju jona teških metala, povećanje količine površinskih grupa kod
modifikovanog karbon kriogela dovodi do višestrukog povećanja adsorpcionog kapaciteta.
PB  - Belgrade : Serbian Chemical Society
C3  - ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts
T1  - Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode
T1  - Carbon cryogel as an adsorbent for removal of Cd(II), Zn(II) and Ni(II) ions from water
SP  - 85
EP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11032
ER  - 

@conference{
author = "Vukčević, Marija and Maletić, Marina and Kalijadis, Ana and Babić, Biljana and Đurkić, Tatjana and Laušević, Mila",
year = "2018",
abstract = "Zagađenje vodenih tokova teškim metalima je jedan od najakutnijih ekoloških
problema današnjice. S obzirom na to da teški metali nisu biorazgradivi, oni se akumuliraju
u životnoj sredini i na taj način ulaze u lanac ishrane ljudi i životinja, pa kao veoma toksične
materije, mogu izazivati niz opasnih i često neizlečivih bolesti. Iz tog razloga, istraživači
godinama u nazad razvijaju nove i usavršavaju postojeće tehnike za prečišćavanje otpadnih
voda od ovih zagađujućih materija [1]. Za prečišćavanje vode zagađene teškim metalima
mogu se koristiti različite metode: hemijska precipitacija, elektrohemijski tretmani, filtracija,
reverzna osmoza, jonska izmena, membranski procesi, adsorpcija. Jedna od najčešće
korišćenih je adsorpcija, koja zbog mogućnosti regenerisanja adsorbenta, odgovarajućim
desorpcionim procesom, predstavlja veoma efektivnu i ekonomičnu metodu. Zahvaljujući
razvijenoj specifičnoj površini i poroznosti, kao i prisustvu funkcionalnih grupa na površini,
različiti ugljenični materijali pokazuju visoku efikasnost u uklanjanju teških metala iz
vode. Karbon kriogel (CC) predstavlja ugljenični materijal razvijene mezoporoznosti čije
se adsorpcione karakteristike mogu poboljšati optimizacijom i kontrolisanjem parametara
dobijanja. U ovom radu je ispitana mogućnost uklanjanja jona teških metala (Cd2+, Ni2+ i
Zn2+) iz vode, korišćenjem karbon kriogela i hemijski modifikovanog karbon kriogela.
Prvi korak u sintezi karbon kriogela je polikondenzacija rezorcinola i formaldehida,
u prisustvu natrijum-karbonata kao katalizatora. Organski kriogel pripremljen je solgel tehnologijom uz naknadno sušenje postupkom zamrzavanja, dok je karbonizacija
organskog kriogela vršena u inertnoj atmosferi argona na temperaturi od 800 o
C [2]. U
cilju poboljšanja adsorpcionih karakteristika karbon kriogela, izvršeno je hemijsko
modifikovanje korišćenjem 5 M HNO3
. Karakterizacija materijala izvršena je merenjem
specifične površine BET metodom, određivanjem tačke nultog naelektrisanja metodom
masene titracije, kao i određivanjem vrsta funkcionalnih grupa prisutnih na površini
materijala, metodom infracrvene spektroskopije sa Furijeovom transformacijom (FTIR).
Ispitan je uticaj pH vrednosti rastvora, početne koncentracije jona metala u rastvoru, kao i
vremena kontakta na adsorpciju teških metala uzorcima karbon kriogela.Primenjenom hemijskom modifikacijom karbon kriogela ne dolazi do bitnijih
promena u specifičnoj površini i poroznosti materijala. S druge strane, ovim postupkom
dolazi do izmene površinske hemije materijala, uvođenjem novih, i povećanjem broja
postojećih kiselih površinskih grupa, što je pokazano FTIR analizom i smanjenjem
vrednosti tačke nultog naelektrisanja sa pHPZC = 9,3 na pHPZC = 3,1. Adsorpcija jona teških
metala na modifikovanom i nemodifikovanom karbon kriogelu vršena je na pH = 6, jer pri
ovoj pH vrednosti materijali pokazuju najveći adsorpcioni kapacitet, a ujedno je izborom
ove pH izbegnuta precipitacija hidroksida metala. Izmene u hemiji površine dovode i do
izmena adsorpcionih karakteristika karbon kriogela. Kako površinske grupe predstavljaju
aktivna mesta za adsorpciju jona teških metala, povećanje količine površinskih grupa kod
modifikovanog karbon kriogela dovodi do višestrukog povećanja adsorpcionog kapaciteta.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts",
title = "Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode, Carbon cryogel as an adsorbent for removal of Cd(II), Zn(II) and Ni(II) ions from water",
pages = "85-86",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11032"
}

Vukčević, M., Maletić, M., Kalijadis, A., Babić, B., Đurkić, T.,& Laušević, M.. (2018). Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode. in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts
Belgrade : Serbian Chemical Society., 85-86.
https://hdl.handle.net/21.15107/rcub_vinar_11032

Vukčević M, Maletić M, Kalijadis A, Babić B, Đurkić T, Laušević M. Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode. in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts. 2018;:85-86.
https://hdl.handle.net/21.15107/rcub_vinar_11032 .

Vukčević, Marija, Maletić, Marina, Kalijadis, Ana, Babić, Biljana, Đurkić, Tatjana, Laušević, Mila, "Karbon kriogel kao adsorbent za uklanjanje Cd(II), Zn(II) i Ni(II) jona iz vode" in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts (2018):85-86,
https://hdl.handle.net/21.15107/rcub_vinar_11032 .

TY  - JOUR
AU  - Antonov, Milica
AU  - Lenhardt, Lea I.
AU  - Manojlović, Dragica
AU  - Milićević, Bojana R.
AU  - Dramićanin, Miroslav
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0042-84501600394A
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7927
AB  - Background/Aim. Discoloration of dental restorations makes them aesthetically unacceptable and is a frequent reason for replacement of composite restorations. The aim of this study was to evaluate changes of color and fluorescence of resin-based composites (RBCs) exposed to natural juices and energy drinks. Methods. Microhybrid composite Gradia Direct™ Extra Bleach White disc-shaped specimens (n = 35) were immersed in three different natural juices and four different energy drinks. Absorption spectra of natural juices and energy drinks, diffuse reflection and fluorescence of composite samples were measured prior and after seven-day immersion by spectrophotometer Thermo Evolution 600 and spectrofluorometer Fluorolog-3-221. Composite’s color was calculated from diffuse reflection spectra and expressed in CIELAB color space (Commission International de l’Eclairage). Results. All natural juices and energy drinks induced color change of resin based composites, but to the different extent. Only aronia and carrot juices induced total color change considerably higher than clinically acceptable threshold, 9.3 and 6.2, respectively. All energy drinks and aronia juice induced notable decrease in fluorescence; the highest change of 28% was evidenced in the case of aronia juice. Conclusion. Change of color and fluorescence will appear differently with various solutions due to different chemical composition and concentration of colorant species in different beverages. Solutions with higher optical absorption induced higher total color change. Discoloration of composites in aronia and carrot juices is similar to those earlier reported for red wine, tea and coffee.
T2  - Vojnosanitetski pregled
T1  - Discoloration of resin based composites in natural juices and energy drinks
T1  - Prebojavanje kompozita prirodnim sokovima i energetskim pićima
VL  - 75
IS  - 8
SP  - 787
EP  - 794
DO  - 10.2298/VSP161018394A
ER  - 

@article{
author = "Antonov, Milica and Lenhardt, Lea I. and Manojlović, Dragica and Milićević, Bojana R. and Dramićanin, Miroslav",
year = "2018",
abstract = "Background/Aim. Discoloration of dental restorations makes them aesthetically unacceptable and is a frequent reason for replacement of composite restorations. The aim of this study was to evaluate changes of color and fluorescence of resin-based composites (RBCs) exposed to natural juices and energy drinks. Methods. Microhybrid composite Gradia Direct™ Extra Bleach White disc-shaped specimens (n = 35) were immersed in three different natural juices and four different energy drinks. Absorption spectra of natural juices and energy drinks, diffuse reflection and fluorescence of composite samples were measured prior and after seven-day immersion by spectrophotometer Thermo Evolution 600 and spectrofluorometer Fluorolog-3-221. Composite’s color was calculated from diffuse reflection spectra and expressed in CIELAB color space (Commission International de l’Eclairage). Results. All natural juices and energy drinks induced color change of resin based composites, but to the different extent. Only aronia and carrot juices induced total color change considerably higher than clinically acceptable threshold, 9.3 and 6.2, respectively. All energy drinks and aronia juice induced notable decrease in fluorescence; the highest change of 28% was evidenced in the case of aronia juice. Conclusion. Change of color and fluorescence will appear differently with various solutions due to different chemical composition and concentration of colorant species in different beverages. Solutions with higher optical absorption induced higher total color change. Discoloration of composites in aronia and carrot juices is similar to those earlier reported for red wine, tea and coffee.",
journal = "Vojnosanitetski pregled",
title = "Discoloration of resin based composites in natural juices and energy drinks, Prebojavanje kompozita prirodnim sokovima i energetskim pićima",
volume = "75",
number = "8",
pages = "787-794",
doi = "10.2298/VSP161018394A"
}

Antonov, M., Lenhardt, L. I., Manojlović, D., Milićević, B. R.,& Dramićanin, M.. (2018). Discoloration of resin based composites in natural juices and energy drinks. in Vojnosanitetski pregled, 75(8), 787-794.
https://doi.org/10.2298/VSP161018394A

Antonov M, Lenhardt LI, Manojlović D, Milićević BR, Dramićanin M. Discoloration of resin based composites in natural juices and energy drinks. in Vojnosanitetski pregled. 2018;75(8):787-794.
doi:10.2298/VSP161018394A .

Antonov, Milica, Lenhardt, Lea I., Manojlović, Dragica, Milićević, Bojana R., Dramićanin, Miroslav, "Discoloration of resin based composites in natural juices and energy drinks" in Vojnosanitetski pregled, 75, no. 8 (2018):787-794,
https://doi.org/10.2298/VSP161018394A . .

TY  - JOUR
AU  - Manojlović, Dragica
AU  - Dramićanin, Miroslav
AU  - Miletić, Vesna
AU  - Mitić-Ćulafić, Dragana
AU  - Jovanović, Bojana
AU  - Nikolić, Biljana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1462
AB  - Objective. To compare cytotoxicity and genotoxicity of novel urethane-based monomer FIT-852 and monoacylphosphine oxide photoinitiator (Lucirin TPO) with conventional Bisphenol A-glycidyl-methacrylate (BisGMA) and triethylene glycol dimethacrylate (TEGDMA) monomers and camphorquinone (CQ)/amine photoinitiator system, respectively. Moreover, we quantified and analyzed the combinatorial effects of individual substances in resin-based mixtures concerning the nature of the combinatorial effects. Methods. Cytotoxic and genotoxic effects of BisGMA, FIT, TEGDMA, CQ DMAEMA and TPO and their combined toxicity in four clinically relevant mixtures (FIT/TPO, FIT/CQ BisGMA/TPO, BisGMA/CQ) were tested on human fetal lung fibroblasts MRC-5 using MTT and Comet assays. We assessed combination effects of monomers and photoinitiators on overall toxicity from the measured concentration-effect relationships. Combination index (CI) was calculated on the basis of the median-effect equation derived from the mass-action law principle. Results. Individual substances showed decreasing cytotoxic effects in the following order: BisGMA GT TPO GT FIT GT CQ GT DMAEMA GT TEGDMA. Experimental mixtures showed decreasing cytotoxic effects in the order BisGMA/TPO GT BisGMA/CQ GT FIT/CQ GT FIT/TPO. FIT-based mixtures exhibited antagonistic cytotoxic effects between components while BisGMA-based mixtures demonstrated synergistic effects at ED50 TPO amplified both antagonistic and synergistic cytotoxic effects in mixtures. Pure substances showed genotoxicity in the following order: TPO GT BisGMA GT FIT GT CQ GT TEGDMA. We did not detect the genotoxic potential of DMAEMA. The rank of genotoxic concentrations of the mixtures was: BisGMA/TPO GT BisGMA/CQ GT FIT/CQ GT FIT/TPO. Significance. Lower cytotoxicity and genotoxicity of FIT than BisGMA suggests its greater bio-co mpatibility. Conversely, photoinitiator TPO was significantly more cytotoxic and genotoxic than both CQ and DMAEMA. CI values showed that components of FIT-based mixtures exhibit an antagonistic cytotoxic effect, while compontents of BisGMA-based mixtures show synergism.
T2  - Dental Materials
T1  - Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures
VL  - 33
IS  - 4
SP  - 454
EP  - 466
DO  - 10.1016/j.dental.2017.02.002
ER  - 

@article{
author = "Manojlović, Dragica and Dramićanin, Miroslav and Miletić, Vesna and Mitić-Ćulafić, Dragana and Jovanović, Bojana and Nikolić, Biljana",
year = "2017",
abstract = "Objective. To compare cytotoxicity and genotoxicity of novel urethane-based monomer FIT-852 and monoacylphosphine oxide photoinitiator (Lucirin TPO) with conventional Bisphenol A-glycidyl-methacrylate (BisGMA) and triethylene glycol dimethacrylate (TEGDMA) monomers and camphorquinone (CQ)/amine photoinitiator system, respectively. Moreover, we quantified and analyzed the combinatorial effects of individual substances in resin-based mixtures concerning the nature of the combinatorial effects. Methods. Cytotoxic and genotoxic effects of BisGMA, FIT, TEGDMA, CQ DMAEMA and TPO and their combined toxicity in four clinically relevant mixtures (FIT/TPO, FIT/CQ BisGMA/TPO, BisGMA/CQ) were tested on human fetal lung fibroblasts MRC-5 using MTT and Comet assays. We assessed combination effects of monomers and photoinitiators on overall toxicity from the measured concentration-effect relationships. Combination index (CI) was calculated on the basis of the median-effect equation derived from the mass-action law principle. Results. Individual substances showed decreasing cytotoxic effects in the following order: BisGMA GT TPO GT FIT GT CQ GT DMAEMA GT TEGDMA. Experimental mixtures showed decreasing cytotoxic effects in the order BisGMA/TPO GT BisGMA/CQ GT FIT/CQ GT FIT/TPO. FIT-based mixtures exhibited antagonistic cytotoxic effects between components while BisGMA-based mixtures demonstrated synergistic effects at ED50 TPO amplified both antagonistic and synergistic cytotoxic effects in mixtures. Pure substances showed genotoxicity in the following order: TPO GT BisGMA GT FIT GT CQ GT TEGDMA. We did not detect the genotoxic potential of DMAEMA. The rank of genotoxic concentrations of the mixtures was: BisGMA/TPO GT BisGMA/CQ GT FIT/CQ GT FIT/TPO. Significance. Lower cytotoxicity and genotoxicity of FIT than BisGMA suggests its greater bio-co mpatibility. Conversely, photoinitiator TPO was significantly more cytotoxic and genotoxic than both CQ and DMAEMA. CI values showed that components of FIT-based mixtures exhibit an antagonistic cytotoxic effect, while compontents of BisGMA-based mixtures show synergism.",
journal = "Dental Materials",
title = "Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures",
volume = "33",
number = "4",
pages = "454-466",
doi = "10.1016/j.dental.2017.02.002"
}

Manojlović, D., Dramićanin, M., Miletić, V., Mitić-Ćulafić, D., Jovanović, B.,& Nikolić, B.. (2017). Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures. in Dental Materials, 33(4), 454-466.
https://doi.org/10.1016/j.dental.2017.02.002

Manojlović D, Dramićanin M, Miletić V, Mitić-Ćulafić D, Jovanović B, Nikolić B. Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures. in Dental Materials. 2017;33(4):454-466.
doi:10.1016/j.dental.2017.02.002 .

Manojlović, Dragica, Dramićanin, Miroslav, Miletić, Vesna, Mitić-Ćulafić, Dragana, Jovanović, Bojana, Nikolić, Biljana, "Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures" in Dental Materials, 33, no. 4 (2017):454-466,
https://doi.org/10.1016/j.dental.2017.02.002 . .

TY  - JOUR
AU  - Lalović, Bojana
AU  - Durkić, Tatjana
AU  - Vukčević, Marija
AU  - Jankovic-Častvan, Ivona
AU  - Kalijadis, Ana
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1707
AB  - In this paper, pristine and chemically treated multi-walled carbon nanotubes (MWCNTs) were employed as solid-phase extraction sorbents for the isolation and enrichment of multi-class pharmaceuticals from the surface water and groundwater, prior to liquid chromatography-tandem mass spectrometry analysis. Thirteen pharmaceuticals that belong to different therapeutical classes (erythromycin, azithromycin, sulfamethoxazole, diazepam, lorazepam, carbamazepine, metoprolol, bisoprolol, enalapril, cilazapril, simvastatin, clopidogrel, diclofenac) and two metabolites of metamizole (4-acetylaminoantipyrine and 4-formylaminoantipyrine) were selected for this study. The influence of chemical treatment on MWCNT surface characteristics and extraction efficiency was studied, and it was shown that HCl treatment of MWCNT leads to a decrease in the amount of surface oxygen groups and at the same time favorably affects the efficiency toward extraction of selected pharmaceuticals. After the optimization of the SPE procedure, the following conditions were chosen: 50 mg of HCl-treated MCWNT as a sorbent, 100 mL of water sample at pH 6, and 15 mL of the methanol-dichloromethane mixture (1:1, v/v) as eluent. Under optimal conditions, high recoveries (79-119%), as well as low detection (0.2 to 103 ng L-1) and quantitation (0.5-345 ng L-1) limits, were obtained. The optimized method was applied to the analysis of five surface water and two groundwater samples, and three pharmaceuticals were detected, the antiepileptic drug carbamazepine and two metabolites of antipyretic metamizole.
T2  - Environmental Science and Pollution Research
T1  - Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS
VL  - 24
IS  - 25
SP  - 20784
EP  - 20793
DO  - 10.1007/s11356-017-9748-0
ER  - 

@article{
author = "Lalović, Bojana and Durkić, Tatjana and Vukčević, Marija and Jankovic-Častvan, Ivona and Kalijadis, Ana and Laušević, Zoran and Laušević, Mila D.",
year = "2017",
abstract = "In this paper, pristine and chemically treated multi-walled carbon nanotubes (MWCNTs) were employed as solid-phase extraction sorbents for the isolation and enrichment of multi-class pharmaceuticals from the surface water and groundwater, prior to liquid chromatography-tandem mass spectrometry analysis. Thirteen pharmaceuticals that belong to different therapeutical classes (erythromycin, azithromycin, sulfamethoxazole, diazepam, lorazepam, carbamazepine, metoprolol, bisoprolol, enalapril, cilazapril, simvastatin, clopidogrel, diclofenac) and two metabolites of metamizole (4-acetylaminoantipyrine and 4-formylaminoantipyrine) were selected for this study. The influence of chemical treatment on MWCNT surface characteristics and extraction efficiency was studied, and it was shown that HCl treatment of MWCNT leads to a decrease in the amount of surface oxygen groups and at the same time favorably affects the efficiency toward extraction of selected pharmaceuticals. After the optimization of the SPE procedure, the following conditions were chosen: 50 mg of HCl-treated MCWNT as a sorbent, 100 mL of water sample at pH 6, and 15 mL of the methanol-dichloromethane mixture (1:1, v/v) as eluent. Under optimal conditions, high recoveries (79-119%), as well as low detection (0.2 to 103 ng L-1) and quantitation (0.5-345 ng L-1) limits, were obtained. The optimized method was applied to the analysis of five surface water and two groundwater samples, and three pharmaceuticals were detected, the antiepileptic drug carbamazepine and two metabolites of antipyretic metamizole.",
journal = "Environmental Science and Pollution Research",
title = "Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS",
volume = "24",
number = "25",
pages = "20784-20793",
doi = "10.1007/s11356-017-9748-0"
}

Lalović, B., Durkić, T., Vukčević, M., Jankovic-Častvan, I., Kalijadis, A., Laušević, Z.,& Laušević, M. D.. (2017). Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS. in Environmental Science and Pollution Research, 24(25), 20784-20793.
https://doi.org/10.1007/s11356-017-9748-0

Lalović B, Durkić T, Vukčević M, Jankovic-Častvan I, Kalijadis A, Laušević Z, Laušević MD. Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS. in Environmental Science and Pollution Research. 2017;24(25):20784-20793.
doi:10.1007/s11356-017-9748-0 .

Lalović, Bojana, Durkić, Tatjana, Vukčević, Marija, Jankovic-Častvan, Ivona, Kalijadis, Ana, Laušević, Zoran, Laušević, Mila D., "Solid-phase extraction of multi-class pharmaceuticals from environmental water samples onto modified multi-walled carbon nanotubes followed by LC-MS/MS" in Environmental Science and Pollution Research, 24, no. 25 (2017):20784-20793,
https://doi.org/10.1007/s11356-017-9748-0 . .

TY  - JOUR
AU  - Vukčević, Marija M.
AU  - Pejić, Biljana M.
AU  - Pajić-Lijaković, Ivana
AU  - Kalijadis, Ana
AU  - Kostić, Mirjana M.
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1897
AB  - Waste hemp (Cannabis sativa) fibers were used as sustainable and renewable raw materials for production of low-cost biocarbon sorbent for heavy metals removal. Carbon precursors of different chemical composition were obtained by oxidative and alkaline treatments of hemp fibers. Influence of lignocellulosic precursor chemical composition on hemp fibers-based biocarbon (HFB) characteristics was examined by BET surface area measurement, scanning electron microscopy and mass titration. It was found that lignin content and polymorphic transformation of cellulose increase the SBET of microporous HFBs, while hemicelluloses induce more homogeneous distribution of adsorption active sites. Heavy metal ions adsorption onto HFBs is primarily influenced by the amount of surface oxygen groups, while specific surface area plays a secondary role. Equilibrium data obtained for lead ions adsorption were analyzed by different nonlinear adsorption isotherms, and the best fitting model was chosen using standard deviation and Akaike information criterion (AIC(C)). The maximum adsorption capacities of HFBs ranged from 103.1 to 116.3 mg Pb/g. Thermodynamic parameters showed that Pb2+ adsorption onto HFBs is a spontaneous and complex endothermic process, suggesting the coexistence of physisorption and chemisorption mechanisms.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon
VL  - 82
IS  - 12
SP  - 1417
EP  - 1431
DO  - 10.2298/JSC170310080V
ER  - 

@article{
author = "Vukčević, Marija M. and Pejić, Biljana M. and Pajić-Lijaković, Ivana and Kalijadis, Ana and Kostić, Mirjana M. and Laušević, Zoran and Laušević, Mila D.",
year = "2017",
abstract = "Waste hemp (Cannabis sativa) fibers were used as sustainable and renewable raw materials for production of low-cost biocarbon sorbent for heavy metals removal. Carbon precursors of different chemical composition were obtained by oxidative and alkaline treatments of hemp fibers. Influence of lignocellulosic precursor chemical composition on hemp fibers-based biocarbon (HFB) characteristics was examined by BET surface area measurement, scanning electron microscopy and mass titration. It was found that lignin content and polymorphic transformation of cellulose increase the SBET of microporous HFBs, while hemicelluloses induce more homogeneous distribution of adsorption active sites. Heavy metal ions adsorption onto HFBs is primarily influenced by the amount of surface oxygen groups, while specific surface area plays a secondary role. Equilibrium data obtained for lead ions adsorption were analyzed by different nonlinear adsorption isotherms, and the best fitting model was chosen using standard deviation and Akaike information criterion (AIC(C)). The maximum adsorption capacities of HFBs ranged from 103.1 to 116.3 mg Pb/g. Thermodynamic parameters showed that Pb2+ adsorption onto HFBs is a spontaneous and complex endothermic process, suggesting the coexistence of physisorption and chemisorption mechanisms.",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon",
volume = "82",
number = "12",
pages = "1417-1431",
doi = "10.2298/JSC170310080V"
}

Vukčević, M. M., Pejić, B. M., Pajić-Lijaković, I., Kalijadis, A., Kostić, M. M., Laušević, Z.,& Laušević, M. D.. (2017). Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon. in Journal of the Serbian Chemical Society, 82(12), 1417-1431.
https://doi.org/10.2298/JSC170310080V

Vukčević MM, Pejić BM, Pajić-Lijaković I, Kalijadis A, Kostić MM, Laušević Z, Laušević MD. Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon. in Journal of the Serbian Chemical Society. 2017;82(12):1417-1431.
doi:10.2298/JSC170310080V .

Vukčević, Marija M., Pejić, Biljana M., Pajić-Lijaković, Ivana, Kalijadis, Ana, Kostić, Mirjana M., Laušević, Zoran, Laušević, Mila D., "Influence of the precursor chemical composition on heavy metal adsorption properties of hemp (Cannabis Sativa) fibers based biocarbon" in Journal of the Serbian Chemical Society, 82, no. 12 (2017):1417-1431,
https://doi.org/10.2298/JSC170310080V . .

TY  - JOUR
AU  - Miletić, Vesna
AU  - Jakovljević, Nikola
AU  - Manojlović, Dragica
AU  - Marjanović, Jovana
AU  - Rosić, Aleksandra
AU  - Dramićanin, Miroslav
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1357
AB  - This study correlated the refractive indices (RIs) of unfilled resin mixtures and resin-based composites (RBCs) with color and translucency of conventional and low-shrinkage RBCs. Unfilled resin mixtures based on different ratios of conventional monomers Bisphenol A-glycidyl-methacrylate (BisGMA)/triethyleneglycol-dimethacrylate (TEGDMA) and urethane-dimethacrylate (UDMA)/TEGDMA and a low-shrinkage monomer FIT-852 (FIT, Esstech Inc.)/TEGDMA were used to prepare model RBCs, containing 30 wt % of the organic matrix and 70 wt % of silanated barium-glass fillers (n=1.553, Esstech Inc.). The RIs of resins were measured on an ABBE refractometer, those of cured RBCs using the Becke-line method in immersion oils. Color and translucency were determined using an AvaSpec-2048 (Avantes BV) spectrometer. The RIs of unfilled resin mixtures decreased with increasing amounts of TEGDMA. Cured RBCs had higher RIs than their respective resin mixtures. BisGMA-based composites were more translucent with significantly lower L* values than FIT- and UDMA-based RBCs. The RIs of unfilled resins positively correlated with cured RBCs (p=0.001), as did the RIs with translucency (p=0.001) and color (p=0.008). Resin mixtures and corresponding RBCs based on UDMA and its modified low-shrinkage version, FIT, showed similar optical properties. The RIs of unfilled resins appeared to be good predictors of the RIs of cured RBCs. (c) 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 7-13, 2017.
T2  - Journal of Biomedical Materials Research. Part B: Applied Biomaterials
T1  - Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites
VL  - 105
IS  - 1
SP  - 7
EP  - 13
DO  - 10.1002/jbm.b.33523
ER  - 

@article{
author = "Miletić, Vesna and Jakovljević, Nikola and Manojlović, Dragica and Marjanović, Jovana and Rosić, Aleksandra and Dramićanin, Miroslav",
year = "2017",
abstract = "This study correlated the refractive indices (RIs) of unfilled resin mixtures and resin-based composites (RBCs) with color and translucency of conventional and low-shrinkage RBCs. Unfilled resin mixtures based on different ratios of conventional monomers Bisphenol A-glycidyl-methacrylate (BisGMA)/triethyleneglycol-dimethacrylate (TEGDMA) and urethane-dimethacrylate (UDMA)/TEGDMA and a low-shrinkage monomer FIT-852 (FIT, Esstech Inc.)/TEGDMA were used to prepare model RBCs, containing 30 wt % of the organic matrix and 70 wt % of silanated barium-glass fillers (n=1.553, Esstech Inc.). The RIs of resins were measured on an ABBE refractometer, those of cured RBCs using the Becke-line method in immersion oils. Color and translucency were determined using an AvaSpec-2048 (Avantes BV) spectrometer. The RIs of unfilled resin mixtures decreased with increasing amounts of TEGDMA. Cured RBCs had higher RIs than their respective resin mixtures. BisGMA-based composites were more translucent with significantly lower L* values than FIT- and UDMA-based RBCs. The RIs of unfilled resins positively correlated with cured RBCs (p=0.001), as did the RIs with translucency (p=0.001) and color (p=0.008). Resin mixtures and corresponding RBCs based on UDMA and its modified low-shrinkage version, FIT, showed similar optical properties. The RIs of unfilled resins appeared to be good predictors of the RIs of cured RBCs. (c) 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 7-13, 2017.",
journal = "Journal of Biomedical Materials Research. Part B: Applied Biomaterials",
title = "Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites",
volume = "105",
number = "1",
pages = "7-13",
doi = "10.1002/jbm.b.33523"
}

Miletić, V., Jakovljević, N., Manojlović, D., Marjanović, J., Rosić, A.,& Dramićanin, M.. (2017). Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites. in Journal of Biomedical Materials Research. Part B: Applied Biomaterials, 105(1), 7-13.
https://doi.org/10.1002/jbm.b.33523

Miletić V, Jakovljević N, Manojlović D, Marjanović J, Rosić A, Dramićanin M. Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites. in Journal of Biomedical Materials Research. Part B: Applied Biomaterials. 2017;105(1):7-13.
doi:10.1002/jbm.b.33523 .

Miletić, Vesna, Jakovljević, Nikola, Manojlović, Dragica, Marjanović, Jovana, Rosić, Aleksandra, Dramićanin, Miroslav, "Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites" in Journal of Biomedical Materials Research. Part B: Applied Biomaterials, 105, no. 1 (2017):7-13,
https://doi.org/10.1002/jbm.b.33523 . .

TY  - CONF
AU  - Maletić, Marina
AU  - Vukčević, Mira
AU  - Kalijadis, Ana
AU  - Janković-Častvan, Ivona
AU  - Dapčević, Aleksandra
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9172
AB  - TiO2/carbon    composite    (TiO2/HTC),    synthesized    by    hydrothermal carbonization,  was  characterized  by  thermogravimetric  analysis,  nitrogen adsorption–desorption  isotherms  and  X-ray  diffraction.  The  possibility  of using   TiO2/HTC   as   photocatalysts   for   UV   and   visible   light   assisted degradation  of  methylene  blue  inaqueous  solution  was  examined.  It  was found  that  carbon  presence  in  TiO2/HTC  leads  to  the  higher  porosity  and increase in the share of photocatalytically active anatase phase. Compared to the   hydrothermally   synthesized   TiO2,   TiO2/HTC   showed   the   superior photocatalytic  activity  under  UV  irradiation.  In  addition,  TiO2/HTC  show high  recycling  ability  with  degradation  ratio  of  methylene  blue  higher  than 81%  after  five  cycles.  Also,  TiO2/HTC  is  expected  to  be  a  promising candidate for photocatalytic processes using visible light.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
T1  - One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite
SP  - C-12-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9172
ER  - 

@conference{
author = "Maletić, Marina and Vukčević, Mira and Kalijadis, Ana and Janković-Častvan, Ivona and Dapčević, Aleksandra and Laušević, Zoran and Laušević, Mila",
year = "2016",
abstract = "TiO2/carbon    composite    (TiO2/HTC),    synthesized    by    hydrothermal carbonization,  was  characterized  by  thermogravimetric  analysis,  nitrogen adsorption–desorption  isotherms  and  X-ray  diffraction.  The  possibility  of using   TiO2/HTC   as   photocatalysts   for   UV   and   visible   light   assisted degradation  of  methylene  blue  inaqueous  solution  was  examined.  It  was found  that  carbon  presence  in  TiO2/HTC  leads  to  the  higher  porosity  and increase in the share of photocatalytically active anatase phase. Compared to the   hydrothermally   synthesized   TiO2,   TiO2/HTC   showed   the   superior photocatalytic  activity  under  UV  irradiation.  In  addition,  TiO2/HTC  show high  recycling  ability  with  degradation  ratio  of  methylene  blue  higher  than 81%  after  five  cycles.  Also,  TiO2/HTC  is  expected  to  be  a  promising candidate for photocatalytic processes using visible light.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry",
title = "One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite",
pages = "C-12-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9172"
}

Maletić, M., Vukčević, M., Kalijadis, A., Janković-Častvan, I., Dapčević, A., Laušević, Z.,& Laušević, M.. (2016). One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., C-12-P.
https://hdl.handle.net/21.15107/rcub_vinar_9172

Maletić M, Vukčević M, Kalijadis A, Janković-Častvan I, Dapčević A, Laušević Z, Laušević M. One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry. 2016;:C-12-P.
https://hdl.handle.net/21.15107/rcub_vinar_9172 .

Maletić, Marina, Vukčević, Mira, Kalijadis, Ana, Janković-Častvan, Ivona, Dapčević, Aleksandra, Laušević, Zoran, Laušević, Mila, "One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite" in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry (2016):C-12-P,
https://hdl.handle.net/21.15107/rcub_vinar_9172 .

TY  - JOUR
AU  - Trivunac, Katarina V.
AU  - Kljajević, Ljiljana M.
AU  - Nenadović, Snežana S.
AU  - Gulicovski, Jelena J.
AU  - Mirković, Miljana M.
AU  - Babić, Biljana M.
AU  - Stevanović, Slavica
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1229
AB  - The microstructural characterization and adsorption properties of metakaolin (MK) and alkali-activated metakaolin, known as geopolymer materials (GP) were investigated. The structure and properties of the metakaolin and obtained geopolymer were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Furthermore, based on the analysis of adsorption efficiency, microstructure and mineral structure, the difference between geopolymer and metakaolin on the performance of immobilizing heavy metals have been discussed. The kinetics of adsorption can be represented by pseudo-second order equation. The results of lead ions adsorption experiments were best fitted by Freundlich adsorption isotherm for both investigated adsorbents. The highest removal efficiencies of alkali-activated material based on metakaolin was found 97.5% at pH 4 and metakaolin removal efficiencies was found 92% at pH 5.5.
T2  - Science of Sintering
T1  - Microstructural Characterization and Adsorption Properties of Alkali-Activated Materials Based on Metakaolin
VL  - 48
IS  - 2
SP  - 209
EP  - 220
DO  - 10.2298/SOS1602209T
ER  - 

@article{
author = "Trivunac, Katarina V. and Kljajević, Ljiljana M. and Nenadović, Snežana S. and Gulicovski, Jelena J. and Mirković, Miljana M. and Babić, Biljana M. and Stevanović, Slavica",
year = "2016",
abstract = "The microstructural characterization and adsorption properties of metakaolin (MK) and alkali-activated metakaolin, known as geopolymer materials (GP) were investigated. The structure and properties of the metakaolin and obtained geopolymer were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Furthermore, based on the analysis of adsorption efficiency, microstructure and mineral structure, the difference between geopolymer and metakaolin on the performance of immobilizing heavy metals have been discussed. The kinetics of adsorption can be represented by pseudo-second order equation. The results of lead ions adsorption experiments were best fitted by Freundlich adsorption isotherm for both investigated adsorbents. The highest removal efficiencies of alkali-activated material based on metakaolin was found 97.5% at pH 4 and metakaolin removal efficiencies was found 92% at pH 5.5.",
journal = "Science of Sintering",
title = "Microstructural Characterization and Adsorption Properties of Alkali-Activated Materials Based on Metakaolin",
volume = "48",
number = "2",
pages = "209-220",
doi = "10.2298/SOS1602209T"
}

Trivunac, K. V., Kljajević, L. M., Nenadović, S. S., Gulicovski, J. J., Mirković, M. M., Babić, B. M.,& Stevanović, S.. (2016). Microstructural Characterization and Adsorption Properties of Alkali-Activated Materials Based on Metakaolin. in Science of Sintering, 48(2), 209-220.
https://doi.org/10.2298/SOS1602209T

Trivunac KV, Kljajević LM, Nenadović SS, Gulicovski JJ, Mirković MM, Babić BM, Stevanović S. Microstructural Characterization and Adsorption Properties of Alkali-Activated Materials Based on Metakaolin. in Science of Sintering. 2016;48(2):209-220.
doi:10.2298/SOS1602209T .

Trivunac, Katarina V., Kljajević, Ljiljana M., Nenadović, Snežana S., Gulicovski, Jelena J., Mirković, Miljana M., Babić, Biljana M., Stevanović, Slavica, "Microstructural Characterization and Adsorption Properties of Alkali-Activated Materials Based on Metakaolin" in Science of Sintering, 48, no. 2 (2016):209-220,
https://doi.org/10.2298/SOS1602209T . .

TY  - JOUR
AU  - Manojlović, Dragica
AU  - Dramićanin, Miroslav
AU  - Milošević, Miloš
AU  - Zeković, Ivana Lj.
AU  - Cvijović-Alagić, Ivana
AU  - Mitrović, Nenad
AU  - Miletić, Vesna
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/798
AB  - This study investigated the degree of conversion, depth of cure, Vickers hardness, flexural strength, flexural modulus and volumetric shrinkage of experimental composite containing a low shrinkage monomer FIT-852 (FIT; Esstech Inc.) and photoinitiator 2,4,6-trimethylbenzoyldiphenylphosphine oxide (TPO; Sigma Aldrich) compared to conventional composite containing Bisphenol A-glycidyl methacrylate (BisGMA) and camphorquinone-amine photoinitiator system. The degree of conversion was generally higher in FIT-based composites (45-64% range) than in BisGMA-based composites (34-58% range). Vickers hardness, flexural strength and modulus were higher in BisGMA-based composites. A polywave light-curing unit was generally more efficient in terms of conversion and hardness of experimental composites than a monowave unit. FIT-based composite containing TPO showed the depth of cure below 2 mm irrespective of the curing light. The depth of cure of FIT-based composite containing CQ and BisGMA-based composites with either photoinitiator was in the range of 2.8-3.0 mm. Volumetric shrinkage of FIT-based composite (0.9-5.7% range) was lower than that of BisGMA-based composite (2.2-12% range). FIT may be used as a shrinkage reducing monomer compatible with the conventional CQ-amine system as well as the alternative TPO photoinitiator. However, the depth of cure of FIT_TPO composite requires boosting to achieve clinically recommended thickness of 2 mm. (C) 2015 Elsevier B.V. All rights reserved.
T2  - Materials Science and Engineering. C: Materials for Biological Applications
T1  - Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites
VL  - 58
SP  - 487
EP  - 494
DO  - 10.1016/j.msec.2015.08.054
ER  - 

@article{
author = "Manojlović, Dragica and Dramićanin, Miroslav and Milošević, Miloš and Zeković, Ivana Lj. and Cvijović-Alagić, Ivana and Mitrović, Nenad and Miletić, Vesna",
year = "2016",
abstract = "This study investigated the degree of conversion, depth of cure, Vickers hardness, flexural strength, flexural modulus and volumetric shrinkage of experimental composite containing a low shrinkage monomer FIT-852 (FIT; Esstech Inc.) and photoinitiator 2,4,6-trimethylbenzoyldiphenylphosphine oxide (TPO; Sigma Aldrich) compared to conventional composite containing Bisphenol A-glycidyl methacrylate (BisGMA) and camphorquinone-amine photoinitiator system. The degree of conversion was generally higher in FIT-based composites (45-64% range) than in BisGMA-based composites (34-58% range). Vickers hardness, flexural strength and modulus were higher in BisGMA-based composites. A polywave light-curing unit was generally more efficient in terms of conversion and hardness of experimental composites than a monowave unit. FIT-based composite containing TPO showed the depth of cure below 2 mm irrespective of the curing light. The depth of cure of FIT-based composite containing CQ and BisGMA-based composites with either photoinitiator was in the range of 2.8-3.0 mm. Volumetric shrinkage of FIT-based composite (0.9-5.7% range) was lower than that of BisGMA-based composite (2.2-12% range). FIT may be used as a shrinkage reducing monomer compatible with the conventional CQ-amine system as well as the alternative TPO photoinitiator. However, the depth of cure of FIT_TPO composite requires boosting to achieve clinically recommended thickness of 2 mm. (C) 2015 Elsevier B.V. All rights reserved.",
journal = "Materials Science and Engineering. C: Materials for Biological Applications",
title = "Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites",
volume = "58",
pages = "487-494",
doi = "10.1016/j.msec.2015.08.054"
}

Manojlović, D., Dramićanin, M., Milošević, M., Zeković, I. Lj., Cvijović-Alagić, I., Mitrović, N.,& Miletić, V.. (2016). Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites. in Materials Science and Engineering. C: Materials for Biological Applications, 58, 487-494.
https://doi.org/10.1016/j.msec.2015.08.054

Manojlović D, Dramićanin M, Milošević M, Zeković IL, Cvijović-Alagić I, Mitrović N, Miletić V. Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites. in Materials Science and Engineering. C: Materials for Biological Applications. 2016;58:487-494.
doi:10.1016/j.msec.2015.08.054 .

Manojlović, Dragica, Dramićanin, Miroslav, Milošević, Miloš, Zeković, Ivana Lj., Cvijović-Alagić, Ivana, Mitrović, Nenad, Miletić, Vesna, "Effects of a low-Shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on curing efficiency and mechanical properties of experimental resin-based composites" in Materials Science and Engineering. C: Materials for Biological Applications, 58 (2016):487-494,
https://doi.org/10.1016/j.msec.2015.08.054 . .

TY  - JOUR
AU  - Miletić, Vesna
AU  - Perić, Dejan
AU  - Milošević, Miloš
AU  - Manojlović, Dragica
AU  - Mitrović, Nenad
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1335
AB  - Objective. To compare strain and displacement of sculptable bulk-fill, low-shrinkage and conventional composites as well as dye penetration along the dentin-restoration interface. Methods. Modified Class II cavities (N= 5/group) were filled with sculptable bulk-fill (Filtek Bulk Fill Posterior, 3M ESPE; Tetric EvoCeram Bulk Fill, Ivoclar Vivadent; fiber-reinforced EverX Posterior, GC; giomer Beautifil Bulk, Schofu), low-shrinkage (Kalore, GC), nanohybrid (Tetric EvoCeram, Ivoclar Vivadent) or microhybrid (Filtek Z250, 3M ESPE) composites. Strain and displacement were determined using the 3D digital image correlation method based on two cameras with 1 mu m displacement sensitivity and 1600 x 1200 pixel resolution (Aramis, GOM). Microleakage along dentin axial and gingival cavity walls was measured under a stereomicroscope using a different set of teeth (N = 8/group). Data were analyzed using analyses of variance with Tukeys post-test, Pearson correlation and paired t-test (alpha = 0.05). Results. Strain of TEC Bulk, Filtek Bulk, Beautifil Bulk and Kalore was in the range of 1-1.5%. EverX and control composites showed 1.5-2% strain. Axial displacements were between 5 mu m and 30 mu m The least strain was identified at 2 mm below the occlusal surface in 4-mm but not in 2-mm layered composites. Greater microleakage occurred along the gingival than axial wall (p LT 0.05). No correlation was found between strain/displacements and microleakage axially (r(2) = 0.082, p = 0.821; r(2) =-0.2, p = 0.605, respectively) or gingivally (r(2) =-0.126, p = 0.729, r(2) =-0.278, p = 0.469, respectively). Significance. Strain i.e. volumetric shrinkage of sculptable bulk-fill and low-shrinkage composites was comparable to control composites but strain distribution across restoration depth differed. Marginal integrity was more compromised along the gingival than axial dentin wall. (C) 2016 The Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
T2  - Dental Materials
T1  - Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites
VL  - 32
IS  - 11
SP  - 1441
EP  - 1451
DO  - 10.1016/j.dental.2016.09.011
ER  - 

@article{
author = "Miletić, Vesna and Perić, Dejan and Milošević, Miloš and Manojlović, Dragica and Mitrović, Nenad",
year = "2016",
abstract = "Objective. To compare strain and displacement of sculptable bulk-fill, low-shrinkage and conventional composites as well as dye penetration along the dentin-restoration interface. Methods. Modified Class II cavities (N= 5/group) were filled with sculptable bulk-fill (Filtek Bulk Fill Posterior, 3M ESPE; Tetric EvoCeram Bulk Fill, Ivoclar Vivadent; fiber-reinforced EverX Posterior, GC; giomer Beautifil Bulk, Schofu), low-shrinkage (Kalore, GC), nanohybrid (Tetric EvoCeram, Ivoclar Vivadent) or microhybrid (Filtek Z250, 3M ESPE) composites. Strain and displacement were determined using the 3D digital image correlation method based on two cameras with 1 mu m displacement sensitivity and 1600 x 1200 pixel resolution (Aramis, GOM). Microleakage along dentin axial and gingival cavity walls was measured under a stereomicroscope using a different set of teeth (N = 8/group). Data were analyzed using analyses of variance with Tukeys post-test, Pearson correlation and paired t-test (alpha = 0.05). Results. Strain of TEC Bulk, Filtek Bulk, Beautifil Bulk and Kalore was in the range of 1-1.5%. EverX and control composites showed 1.5-2% strain. Axial displacements were between 5 mu m and 30 mu m The least strain was identified at 2 mm below the occlusal surface in 4-mm but not in 2-mm layered composites. Greater microleakage occurred along the gingival than axial wall (p LT 0.05). No correlation was found between strain/displacements and microleakage axially (r(2) = 0.082, p = 0.821; r(2) =-0.2, p = 0.605, respectively) or gingivally (r(2) =-0.126, p = 0.729, r(2) =-0.278, p = 0.469, respectively). Significance. Strain i.e. volumetric shrinkage of sculptable bulk-fill and low-shrinkage composites was comparable to control composites but strain distribution across restoration depth differed. Marginal integrity was more compromised along the gingival than axial dentin wall. (C) 2016 The Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.",
journal = "Dental Materials",
title = "Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites",
volume = "32",
number = "11",
pages = "1441-1451",
doi = "10.1016/j.dental.2016.09.011"
}

Miletić, V., Perić, D., Milošević, M., Manojlović, D.,& Mitrović, N.. (2016). Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites. in Dental Materials, 32(11), 1441-1451.
https://doi.org/10.1016/j.dental.2016.09.011

Miletić V, Perić D, Milošević M, Manojlović D, Mitrović N. Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites. in Dental Materials. 2016;32(11):1441-1451.
doi:10.1016/j.dental.2016.09.011 .

Miletić, Vesna, Perić, Dejan, Milošević, Miloš, Manojlović, Dragica, Mitrović, Nenad, "Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites" in Dental Materials, 32, no. 11 (2016):1441-1451,
https://doi.org/10.1016/j.dental.2016.09.011 . .

TY  - JOUR
AU  - Antonov, Milica
AU  - Lenhardt, Lea I.
AU  - Manojlović, Dragica
AU  - Milićević, Bojana R.
AU  - Zeković, Ivana Lj.
AU  - Dramićanin, Miroslav
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1281
AB  - ObjectiveThe aim of this study was to evaluate changes of color and fluorescence of resin based composite exposed to beer. Materials and Methods84 samples (13 mm in diameter and 1.5 mm thick) of microhybrid composite Gradia Direct(TM) extra bleach white were immersed in 5 different beers (dark and light) or distilled water. Color and fluorescence were measured prior and after 1-, 7-, and 14-day immersion by Spectrophotometer Thermo Evolution 600 and Fluorolog-3-221 spectrofluorometer. ResultsResin based composites changed color after immersion in beers of different types. Beers with higher optical absorption induced greater color changes. The fluorescence intensity of composites was decreased after immersion in beer, but the shape of fluorescence spectra was not changed. 14-day immersion in Bernard dark beer caused the greatest changes in optical properties of composite: E*=9.0 and 57.6% reduced fluorescence. ConclusionDark and light beers changed optical properties of resin based composite. The color change come exclusively from the change of chroma. Clinical SignificanceTo fully meet esthetic criteria when using dental materials in restoration it is crucial to match optical properties of teeth and dental restoration at the moment of placement, but also to keep the match over the time. Considering that staining in beer causes changes in color and fluorescence of composites and that discoloration is a frequent reason for replacement of composite restorations, the data and conclusions on discoloration of dental restorations caused by beer consumption should aid dental professionals when reaching for high esthetics of modern dentistry.(J Esthet Restor Dent 28:330-338, 2016)
T2  - Journal of Esthetic and Restorative Dentistry
T1  - Changes of Color and Fluorescence of Resin Composites Immersed in Beer
VL  - 28
IS  - 5
SP  - 330
EP  - 338
DO  - 10.1111/jerd.12232
ER  - 

@article{
author = "Antonov, Milica and Lenhardt, Lea I. and Manojlović, Dragica and Milićević, Bojana R. and Zeković, Ivana Lj. and Dramićanin, Miroslav",
year = "2016",
abstract = "ObjectiveThe aim of this study was to evaluate changes of color and fluorescence of resin based composite exposed to beer. Materials and Methods84 samples (13 mm in diameter and 1.5 mm thick) of microhybrid composite Gradia Direct(TM) extra bleach white were immersed in 5 different beers (dark and light) or distilled water. Color and fluorescence were measured prior and after 1-, 7-, and 14-day immersion by Spectrophotometer Thermo Evolution 600 and Fluorolog-3-221 spectrofluorometer. ResultsResin based composites changed color after immersion in beers of different types. Beers with higher optical absorption induced greater color changes. The fluorescence intensity of composites was decreased after immersion in beer, but the shape of fluorescence spectra was not changed. 14-day immersion in Bernard dark beer caused the greatest changes in optical properties of composite: E*=9.0 and 57.6% reduced fluorescence. ConclusionDark and light beers changed optical properties of resin based composite. The color change come exclusively from the change of chroma. Clinical SignificanceTo fully meet esthetic criteria when using dental materials in restoration it is crucial to match optical properties of teeth and dental restoration at the moment of placement, but also to keep the match over the time. Considering that staining in beer causes changes in color and fluorescence of composites and that discoloration is a frequent reason for replacement of composite restorations, the data and conclusions on discoloration of dental restorations caused by beer consumption should aid dental professionals when reaching for high esthetics of modern dentistry.(J Esthet Restor Dent 28:330-338, 2016)",
journal = "Journal of Esthetic and Restorative Dentistry",
title = "Changes of Color and Fluorescence of Resin Composites Immersed in Beer",
volume = "28",
number = "5",
pages = "330-338",
doi = "10.1111/jerd.12232"
}

Antonov, M., Lenhardt, L. I., Manojlović, D., Milićević, B. R., Zeković, I. Lj.,& Dramićanin, M.. (2016). Changes of Color and Fluorescence of Resin Composites Immersed in Beer. in Journal of Esthetic and Restorative Dentistry, 28(5), 330-338.
https://doi.org/10.1111/jerd.12232

Antonov M, Lenhardt LI, Manojlović D, Milićević BR, Zeković IL, Dramićanin M. Changes of Color and Fluorescence of Resin Composites Immersed in Beer. in Journal of Esthetic and Restorative Dentistry. 2016;28(5):330-338.
doi:10.1111/jerd.12232 .

Antonov, Milica, Lenhardt, Lea I., Manojlović, Dragica, Milićević, Bojana R., Zeković, Ivana Lj., Dramićanin, Miroslav, "Changes of Color and Fluorescence of Resin Composites Immersed in Beer" in Journal of Esthetic and Restorative Dentistry, 28, no. 5 (2016):330-338,
https://doi.org/10.1111/jerd.12232 . .

TY  - JOUR
AU  - Manojlović, Dragica
AU  - Dramićanin, Miroslav
AU  - Ležaja, Maja
AU  - Pongprueksa, Pong
AU  - Van Meerbeek, Bart
AU  - Miletić, Vesna
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/953
AB  - Objective. To study the effect of a low-shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on color, translucency, and color stability of model resin-based composites (RBCs). Methods. Four micro-hybrid RBCs were prepared containing barium-glass fillers in bisphenol A-glycidyl-methacrylate (BisGMA) and triethyleneglycol-dimethacrylate (TEGDMA) or urethane-based low-shrinkage monomer FIT-852 (FIT; Esstech Inc.) and TEGDMA matrix. Camphorquinone (CQ)/amine or Lucirin TPO were used as photoinitiators. Commercial low-shrinkage RBCs (Charisma Diamond, Heraeus Kulzer and NDurance, Septodont) and conventional RBCs (Tetric EvoCeram, Ivoclar Vivadent and Filtek Z250, 3M ESPE) were used as controls. Color and translucency were measured using Thermo Scientific Evolution (Thermo Fisher Scientific) and SpectroShade (TM) Micro (MHT Optic Research) spectrophotometers. Color stability was evaluated after immersion in black tea (pure, with milk or lemon) and distilled water. Data were analyzed using analyses of variance with Tukeys post-test (alpha = 0.05). Results. Photoinitiators had no significant effect on baseline color. Initially whiter FIT-based RBCs showed greater staining in all staining solutions than BisGMA-based RBCs. TPO-containing RBCs showed better color stability than CQ-containing RBCs irrespective of the base monomer. Tea and tea with lemon induced greatest color changes. Adding milk to tea significantly reduced material staining. Significance. Urethane-based low-shrinkage monomer FIT and conventional BisGMA affected color, translucency and color stability of their respective RBCs. Despite being used in posterior teeth, low-shrinkage RBCs are expected to have favorable optical and esthetic properties. Manufacturers are urged to provide information on optical properties of monomers and monomer mixtures in their low-shrinkage RBCs to allow understanding of interaction with fillers and photoinitiators. (C) 2015 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
PB  - Elsevier
T2  - Dental Materials
T1  - Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites
VL  - 32
IS  - 2
SP  - 183
EP  - 191
DO  - 10.1016/j.dental.2015.11.027
ER  - 

@article{
author = "Manojlović, Dragica and Dramićanin, Miroslav and Ležaja, Maja and Pongprueksa, Pong and Van Meerbeek, Bart and Miletić, Vesna",
year = "2016",
abstract = "Objective. To study the effect of a low-shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on color, translucency, and color stability of model resin-based composites (RBCs). Methods. Four micro-hybrid RBCs were prepared containing barium-glass fillers in bisphenol A-glycidyl-methacrylate (BisGMA) and triethyleneglycol-dimethacrylate (TEGDMA) or urethane-based low-shrinkage monomer FIT-852 (FIT; Esstech Inc.) and TEGDMA matrix. Camphorquinone (CQ)/amine or Lucirin TPO were used as photoinitiators. Commercial low-shrinkage RBCs (Charisma Diamond, Heraeus Kulzer and NDurance, Septodont) and conventional RBCs (Tetric EvoCeram, Ivoclar Vivadent and Filtek Z250, 3M ESPE) were used as controls. Color and translucency were measured using Thermo Scientific Evolution (Thermo Fisher Scientific) and SpectroShade (TM) Micro (MHT Optic Research) spectrophotometers. Color stability was evaluated after immersion in black tea (pure, with milk or lemon) and distilled water. Data were analyzed using analyses of variance with Tukeys post-test (alpha = 0.05). Results. Photoinitiators had no significant effect on baseline color. Initially whiter FIT-based RBCs showed greater staining in all staining solutions than BisGMA-based RBCs. TPO-containing RBCs showed better color stability than CQ-containing RBCs irrespective of the base monomer. Tea and tea with lemon induced greatest color changes. Adding milk to tea significantly reduced material staining. Significance. Urethane-based low-shrinkage monomer FIT and conventional BisGMA affected color, translucency and color stability of their respective RBCs. Despite being used in posterior teeth, low-shrinkage RBCs are expected to have favorable optical and esthetic properties. Manufacturers are urged to provide information on optical properties of monomers and monomer mixtures in their low-shrinkage RBCs to allow understanding of interaction with fillers and photoinitiators. (C) 2015 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.",
publisher = "Elsevier",
journal = "Dental Materials",
title = "Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites",
volume = "32",
number = "2",
pages = "183-191",
doi = "10.1016/j.dental.2015.11.027"
}

Manojlović, D., Dramićanin, M., Ležaja, M., Pongprueksa, P., Van Meerbeek, B.,& Miletić, V.. (2016). Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites. in Dental Materials
Elsevier., 32(2), 183-191.
https://doi.org/10.1016/j.dental.2015.11.027

Manojlović D, Dramićanin M, Ležaja M, Pongprueksa P, Van Meerbeek B, Miletić V. Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites. in Dental Materials. 2016;32(2):183-191.
doi:10.1016/j.dental.2015.11.027 .

Manojlović, Dragica, Dramićanin, Miroslav, Ležaja, Maja, Pongprueksa, Pong, Van Meerbeek, Bart, Miletić, Vesna, "Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites" in Dental Materials, 32, no. 2 (2016):183-191,
https://doi.org/10.1016/j.dental.2015.11.027 . .

TY  - JOUR
AU  - Petrović, V.
AU  - Opacic-Galic, V.
AU  - Zivkovic, S.
AU  - Nikolić, Biljana
AU  - Danilovic, V.
AU  - Miletic, V.
AU  - Jokanović, Vukoman R.
AU  - Mitić-Ćulafić, Dragana
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/722
AB  - AimTo evaluate in vitro cytotoxicity and in vivo inflammatory response to new nanostructural materials based on active calcium silicate systems (CS) and hydroxyapatite (HA-CS). MethodologyCytotoxicity of eluates of new nanostructural noncommercial materials CS and HA-CS, and MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil) as a control, were tested using the MTT assay on MRC-5 cells. Eluates of set materials were tested in 100% and 50% concentrations, 24h, 7days and 21days post-elution. The pH values were determined for undiluted eluates of set materials. Polyethylene tubes containing the test materials (CS, HA-CS, MTA) were implanted in subcutaneous tissue of Wistar rats. Histopathological examinations were conducted at 7, 15, 30 and 60days after the implantation. Data were statistically analyzed using three-way and one-way anova Tukeys post hoc test as well as Kruskall-Wallis test with Dunns post hoc test at =0.05. ResultsAll materials significantly reduced cell viability; especially when undiluted eluates were used (P LT 0.001). After 24h elution, cell viability was 101.8%, 49.5 +/- 4.2% and 61 +/- 7.4%, for MTA, and HA-CS, respectively. However, CS and HA-CS were significantly less toxic than the control material MTA (P LT 0.05). Cytotoxicity could be at least partially attributed to pH kinetics over time. Dilution of eluates of all tested materials resulted in better cell survival. Histopathological examination indicated similar inflammatory reaction, vascular congestion and connective tissue integrity associated with CS, HA-CS and MTA at each observation period (P GT 0.05). The only significant difference was found for capsule thickness, that is thicker capsule was associated with HA-CS compared to MTA at 60days (P=0.0039). HA-CS induced moderately thick capsules (median score 3, score range 2-3), whereas MTA resulted in thin capsule formation (median score 2, score range 1-3). ConclusionsEvaluation of cytotoxicity and inflammatory response indicated better biocompatibility of CS and HA-CS, in comparison with MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil).
T2  - International Endodontic Journal
T1  - Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study
VL  - 48
IS  - 10
SP  - 966
EP  - 975
DO  - 10.1111/iej.12391
ER  - 

@article{
author = "Petrović, V. and Opacic-Galic, V. and Zivkovic, S. and Nikolić, Biljana and Danilovic, V. and Miletic, V. and Jokanović, Vukoman R. and Mitić-Ćulafić, Dragana",
year = "2015",
abstract = "AimTo evaluate in vitro cytotoxicity and in vivo inflammatory response to new nanostructural materials based on active calcium silicate systems (CS) and hydroxyapatite (HA-CS). MethodologyCytotoxicity of eluates of new nanostructural noncommercial materials CS and HA-CS, and MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil) as a control, were tested using the MTT assay on MRC-5 cells. Eluates of set materials were tested in 100% and 50% concentrations, 24h, 7days and 21days post-elution. The pH values were determined for undiluted eluates of set materials. Polyethylene tubes containing the test materials (CS, HA-CS, MTA) were implanted in subcutaneous tissue of Wistar rats. Histopathological examinations were conducted at 7, 15, 30 and 60days after the implantation. Data were statistically analyzed using three-way and one-way anova Tukeys post hoc test as well as Kruskall-Wallis test with Dunns post hoc test at =0.05. ResultsAll materials significantly reduced cell viability; especially when undiluted eluates were used (P LT 0.001). After 24h elution, cell viability was 101.8%, 49.5 +/- 4.2% and 61 +/- 7.4%, for MTA, and HA-CS, respectively. However, CS and HA-CS were significantly less toxic than the control material MTA (P LT 0.05). Cytotoxicity could be at least partially attributed to pH kinetics over time. Dilution of eluates of all tested materials resulted in better cell survival. Histopathological examination indicated similar inflammatory reaction, vascular congestion and connective tissue integrity associated with CS, HA-CS and MTA at each observation period (P GT 0.05). The only significant difference was found for capsule thickness, that is thicker capsule was associated with HA-CS compared to MTA at 60days (P=0.0039). HA-CS induced moderately thick capsules (median score 3, score range 2-3), whereas MTA resulted in thin capsule formation (median score 2, score range 1-3). ConclusionsEvaluation of cytotoxicity and inflammatory response indicated better biocompatibility of CS and HA-CS, in comparison with MTA (White MTA, Angelus((R)) Solucoes Odontologicas, Londrina, Brazil).",
journal = "International Endodontic Journal",
title = "Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study",
volume = "48",
number = "10",
pages = "966-975",
doi = "10.1111/iej.12391"
}

Petrović, V., Opacic-Galic, V., Zivkovic, S., Nikolić, B., Danilovic, V., Miletic, V., Jokanović, V. R.,& Mitić-Ćulafić, D.. (2015). Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study. in International Endodontic Journal, 48(10), 966-975.
https://doi.org/10.1111/iej.12391

Petrović V, Opacic-Galic V, Zivkovic S, Nikolić B, Danilovic V, Miletic V, Jokanović VR, Mitić-Ćulafić D. Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study. in International Endodontic Journal. 2015;48(10):966-975.
doi:10.1111/iej.12391 .

Petrović, V., Opacic-Galic, V., Zivkovic, S., Nikolić, Biljana, Danilovic, V., Miletic, V., Jokanović, Vukoman R., Mitić-Ćulafić, Dragana, "Biocompatibility of new nanostructural materials based on active silicate systems and hydroxyapatite: in vitro and in vivo study" in International Endodontic Journal, 48, no. 10 (2015):966-975,
https://doi.org/10.1111/iej.12391 . .

TY  - JOUR
AU  - Vukčević, Marija M.
AU  - Kalijadis, Ana
AU  - Vasiljevic, Tatjana M.
AU  - Babić, Biljana M.
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/621
AB  - The main objective of this work was to find optimal production parameters for the preparation of activated hemp fibers (ACh) with good adsorption properties toward pesticides. In order to examine the role of manufacturing parameters on ACh surface characteristics, activation process of carbonized hemp fibers was investigated by temperature programmed reaction and evolved gaseous products of activation were monitored by mass spectrometry. ACh samples were characterized by BET surface area, scanning electron microscopy and temperature-programmed desorption. KOH activation induces the reduction of oxygen groups existing on the carbonized hemp fiber surface and the formation of the more stable, predominantly anhydride groups, while porosity development correlates with both H-2 and CO, evolved during the activation, and increases with carbonization and activation temperature. Finally, the highest efficiency in pesticides removal was achieved by carbonization of waste hemp fibers and activation at 900 degrees C with KOH/carbonized material ratio of 2/1. High efficiency in pesticides removal indicates that activated hemp fibers could be successfully used as a sorbent in water purification. (C) 2015 Elsevier Inc. All rights reserved.
T2  - Microporous and Mesoporous Materials
T1  - Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption
VL  - 214
SP  - 156
EP  - 165
DO  - 10.1016/j.micromeso.2015.05.012
ER  - 

@article{
author = "Vukčević, Marija M. and Kalijadis, Ana and Vasiljevic, Tatjana M. and Babić, Biljana M. and Laušević, Zoran and Laušević, Mila D.",
year = "2015",
abstract = "The main objective of this work was to find optimal production parameters for the preparation of activated hemp fibers (ACh) with good adsorption properties toward pesticides. In order to examine the role of manufacturing parameters on ACh surface characteristics, activation process of carbonized hemp fibers was investigated by temperature programmed reaction and evolved gaseous products of activation were monitored by mass spectrometry. ACh samples were characterized by BET surface area, scanning electron microscopy and temperature-programmed desorption. KOH activation induces the reduction of oxygen groups existing on the carbonized hemp fiber surface and the formation of the more stable, predominantly anhydride groups, while porosity development correlates with both H-2 and CO, evolved during the activation, and increases with carbonization and activation temperature. Finally, the highest efficiency in pesticides removal was achieved by carbonization of waste hemp fibers and activation at 900 degrees C with KOH/carbonized material ratio of 2/1. High efficiency in pesticides removal indicates that activated hemp fibers could be successfully used as a sorbent in water purification. (C) 2015 Elsevier Inc. All rights reserved.",
journal = "Microporous and Mesoporous Materials",
title = "Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption",
volume = "214",
pages = "156-165",
doi = "10.1016/j.micromeso.2015.05.012"
}

Vukčević, M. M., Kalijadis, A., Vasiljevic, T. M., Babić, B. M., Laušević, Z.,& Laušević, M. D.. (2015). Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption. in Microporous and Mesoporous Materials, 214, 156-165.
https://doi.org/10.1016/j.micromeso.2015.05.012

Vukčević MM, Kalijadis A, Vasiljevic TM, Babić BM, Laušević Z, Laušević MD. Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption. in Microporous and Mesoporous Materials. 2015;214:156-165.
doi:10.1016/j.micromeso.2015.05.012 .

Vukčević, Marija M., Kalijadis, Ana, Vasiljevic, Tatjana M., Babić, Biljana M., Laušević, Zoran, Laušević, Mila D., "Production of activated carbon derived from waste hemp (Cannabis sativa) fibers and its performance in pesticide adsorption" in Microporous and Mesoporous Materials, 214 (2015):156-165,
https://doi.org/10.1016/j.micromeso.2015.05.012 . .

TY  - JOUR
AU  - Maletić, Marina
AU  - Vukčević, Marija
AU  - Kalijadis, Ana
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/641
AB  - The new and simple approach for deposition of catalytically active TiO2 coating on carbon monolith (CM) carrier was presented. CM photocatalysts were impregnated with TiO2 using titanium solution and thermal treatment, and their photocatalytic activity was investigated in the process of methylene blue (MB) photodegradation. For the purpose of comparison, CM composite photocatalysts were prepared by dip-coating method, which implies binder usage. The presence of TiO2 on CM carrier was confirmed by Raman spectroscopy and scanning electron microscopy. The sorption characteristics of CM and the role of adsorption in the overall process of MB removal were evaluated through amount of surface oxygen groups obtained by temperature-programmed desorption and specific surface area determined by BET method. CM has shown good adsorption properties toward MB due to high amount of surface oxygen groups and relatively high specific surface area. It was concluded that photocatalytic activity increases with CM disc thickness due to increase of MB adsorption and amount of deposited TiO2. Good photocatalytic activity achieved for samples obtained by thermal treatment is the result of better accessibility of MB solution to the TiO2 particles induced by binder absence.
T2  - Advances in Materials Science and Engineering
T1  - Photocatalytic Performance of Carbon Monolith/TiO2 Composite
DO  - 10.1155/2015/803492
ER  - 

@article{
author = "Maletić, Marina and Vukčević, Marija and Kalijadis, Ana and Laušević, Zoran and Laušević, Mila D.",
year = "2015",
abstract = "The new and simple approach for deposition of catalytically active TiO2 coating on carbon monolith (CM) carrier was presented. CM photocatalysts were impregnated with TiO2 using titanium solution and thermal treatment, and their photocatalytic activity was investigated in the process of methylene blue (MB) photodegradation. For the purpose of comparison, CM composite photocatalysts were prepared by dip-coating method, which implies binder usage. The presence of TiO2 on CM carrier was confirmed by Raman spectroscopy and scanning electron microscopy. The sorption characteristics of CM and the role of adsorption in the overall process of MB removal were evaluated through amount of surface oxygen groups obtained by temperature-programmed desorption and specific surface area determined by BET method. CM has shown good adsorption properties toward MB due to high amount of surface oxygen groups and relatively high specific surface area. It was concluded that photocatalytic activity increases with CM disc thickness due to increase of MB adsorption and amount of deposited TiO2. Good photocatalytic activity achieved for samples obtained by thermal treatment is the result of better accessibility of MB solution to the TiO2 particles induced by binder absence.",
journal = "Advances in Materials Science and Engineering",
title = "Photocatalytic Performance of Carbon Monolith/TiO2 Composite",
doi = "10.1155/2015/803492"
}

Maletić, M., Vukčević, M., Kalijadis, A., Laušević, Z.,& Laušević, M. D.. (2015). Photocatalytic Performance of Carbon Monolith/TiO2 Composite. in Advances in Materials Science and Engineering.
https://doi.org/10.1155/2015/803492

Maletić M, Vukčević M, Kalijadis A, Laušević Z, Laušević MD. Photocatalytic Performance of Carbon Monolith/TiO2 Composite. in Advances in Materials Science and Engineering. 2015;.
doi:10.1155/2015/803492 .

Maletić, Marina, Vukčević, Marija, Kalijadis, Ana, Laušević, Zoran, Laušević, Mila D., "Photocatalytic Performance of Carbon Monolith/TiO2 Composite" in Advances in Materials Science and Engineering (2015),
https://doi.org/10.1155/2015/803492 . .

TY  - JOUR
AU  - Manojlović, Dragan D.
AU  - Lenhardt, Lea I.
AU  - Milićević, Bojana R.
AU  - Antonov, Milica
AU  - Miletic, V.
AU  - Dramićanin, Miroslav
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/763
AB  - Colour changes in Gradia Direct (TM) composite after immersion in tea, coffee, red wine, Coca-Cola, Colgate mouthwash, and distilled water were evaluated using principal component analysis (PCA) and the CIELAB colour coordinates. The reflection spectra of the composites were used as input data for the PCA. The output data (scores and loadings) provided information about the magnitude and origin of the surface reflection changes after exposure to the staining solutions. The reflection spectra of the stained samples generally exhibited lower reflection in the blue spectral range, which was manifested in the lower content of the blue shade for the samples. Both analyses demonstrated the high staining abilities of tea, coffee, and red wine, which produced total colour changes of 4.31, 6.61, and 6.22, respectively, according to the CIELAB analysis. PCA revealed subtle changes in the reflection spectra of composites immersed in Coca-Cola, demonstrating Coca-Colas ability to stain the composite to a small degree.
T2  - Scientific Reports
T1  - Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis
VL  - 5
DO  - 10.1038/srep14638
ER  - 

@article{
author = "Manojlović, Dragan D. and Lenhardt, Lea I. and Milićević, Bojana R. and Antonov, Milica and Miletic, V. and Dramićanin, Miroslav",
year = "2015",
abstract = "Colour changes in Gradia Direct (TM) composite after immersion in tea, coffee, red wine, Coca-Cola, Colgate mouthwash, and distilled water were evaluated using principal component analysis (PCA) and the CIELAB colour coordinates. The reflection spectra of the composites were used as input data for the PCA. The output data (scores and loadings) provided information about the magnitude and origin of the surface reflection changes after exposure to the staining solutions. The reflection spectra of the stained samples generally exhibited lower reflection in the blue spectral range, which was manifested in the lower content of the blue shade for the samples. Both analyses demonstrated the high staining abilities of tea, coffee, and red wine, which produced total colour changes of 4.31, 6.61, and 6.22, respectively, according to the CIELAB analysis. PCA revealed subtle changes in the reflection spectra of composites immersed in Coca-Cola, demonstrating Coca-Colas ability to stain the composite to a small degree.",
journal = "Scientific Reports",
title = "Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis",
volume = "5",
doi = "10.1038/srep14638"
}

Manojlović, D. D., Lenhardt, L. I., Milićević, B. R., Antonov, M., Miletic, V.,& Dramićanin, M.. (2015). Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis. in Scientific Reports, 5.
https://doi.org/10.1038/srep14638

Manojlović DD, Lenhardt LI, Milićević BR, Antonov M, Miletic V, Dramićanin M. Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis. in Scientific Reports. 2015;5.
doi:10.1038/srep14638 .

Manojlović, Dragan D., Lenhardt, Lea I., Milićević, Bojana R., Antonov, Milica, Miletic, V., Dramićanin, Miroslav, "Evaluation of Staining-Dependent Colour Changes in Resin Composites Using Principal Component Analysis" in Scientific Reports, 5 (2015),
https://doi.org/10.1038/srep14638 . .

TY  - JOUR
AU  - Taleb, Khaled
AU  - Markovski, Jasmina S.
AU  - Milosavljevic, Milutin
AU  - Marinović-Cincović, Milena
AU  - Rusmirović, Jelena D.
AU  - Ristić, Mirjana
AU  - Marinković, Aleksandar D.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/704
AB  - Optimization of the synthesis of cross-linked macroporous polymer impregnated with hydrous iron oxide and post-process of obtained material by application of freeze/drying technique, produces high performance adsorbent applicable for efficient arsenic removal. Characterization and analysis of adsorbent performances encompass material characterization, equilibrium and kinetic study, influences of interfering ions and modeling of adsorption data in ion free and competitive conditions. Kinetic study, i.e. fitting by Weber-Morris model and single resistance mass transfer model predicts intra-particle diffusion as a rate-controlling step. Thermodynamic parameters indicate endothermic, feasible and spontaneous nature of adsorption process. Competitive kinetic study in the presence of interfering ions shows low detrimental effect on both capacity and kinetic of arsenic removal. Visual MINTEQ modeling software was used for the prediction of adsorbent performances and interfering ion influences. Preliminary fixed-bed column study was accomplished by the use of Bohart-Adams, Yoon-Nelson, Thomas and Modified dose-response model. High arsenic removal capacity of 31.0 mg g(-1), at 25 degrees C, and multi-cycle reusability of ER/DETA/FO/FD, significantly affects the affordability of techno-economic indicators based on the operating costs of the process. (C) 2015 Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Journal
T1  - Efficient arsenic removal by cross-linked macroporous polymer impregnated with hydrous iron oxide: Material performance
VL  - 279
SP  - 66
EP  - 78
DO  - 10.1016/j.cej.2015.04.147
ER  - 

@article{
author = "Taleb, Khaled and Markovski, Jasmina S. and Milosavljevic, Milutin and Marinović-Cincović, Milena and Rusmirović, Jelena D. and Ristić, Mirjana and Marinković, Aleksandar D.",
year = "2015",
abstract = "Optimization of the synthesis of cross-linked macroporous polymer impregnated with hydrous iron oxide and post-process of obtained material by application of freeze/drying technique, produces high performance adsorbent applicable for efficient arsenic removal. Characterization and analysis of adsorbent performances encompass material characterization, equilibrium and kinetic study, influences of interfering ions and modeling of adsorption data in ion free and competitive conditions. Kinetic study, i.e. fitting by Weber-Morris model and single resistance mass transfer model predicts intra-particle diffusion as a rate-controlling step. Thermodynamic parameters indicate endothermic, feasible and spontaneous nature of adsorption process. Competitive kinetic study in the presence of interfering ions shows low detrimental effect on both capacity and kinetic of arsenic removal. Visual MINTEQ modeling software was used for the prediction of adsorbent performances and interfering ion influences. Preliminary fixed-bed column study was accomplished by the use of Bohart-Adams, Yoon-Nelson, Thomas and Modified dose-response model. High arsenic removal capacity of 31.0 mg g(-1), at 25 degrees C, and multi-cycle reusability of ER/DETA/FO/FD, significantly affects the affordability of techno-economic indicators based on the operating costs of the process. (C) 2015 Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Journal",
title = "Efficient arsenic removal by cross-linked macroporous polymer impregnated with hydrous iron oxide: Material performance",
volume = "279",
pages = "66-78",
doi = "10.1016/j.cej.2015.04.147"
}

Taleb, K., Markovski, J. S., Milosavljevic, M., Marinović-Cincović, M., Rusmirović, J. D., Ristić, M.,& Marinković, A. D.. (2015). Efficient arsenic removal by cross-linked macroporous polymer impregnated with hydrous iron oxide: Material performance. in Chemical Engineering Journal, 279, 66-78.
https://doi.org/10.1016/j.cej.2015.04.147

Taleb K, Markovski JS, Milosavljevic M, Marinović-Cincović M, Rusmirović JD, Ristić M, Marinković AD. Efficient arsenic removal by cross-linked macroporous polymer impregnated with hydrous iron oxide: Material performance. in Chemical Engineering Journal. 2015;279:66-78.
doi:10.1016/j.cej.2015.04.147 .

Taleb, Khaled, Markovski, Jasmina S., Milosavljevic, Milutin, Marinović-Cincović, Milena, Rusmirović, Jelena D., Ristić, Mirjana, Marinković, Aleksandar D., "Efficient arsenic removal by cross-linked macroporous polymer impregnated with hydrous iron oxide: Material performance" in Chemical Engineering Journal, 279 (2015):66-78,
https://doi.org/10.1016/j.cej.2015.04.147 . .

TY  - JOUR
AU  - Vukčević, Marija
AU  - Pejić, Biljana
AU  - Kalijadis, Ana
AU  - Pajić-Lijaković, Ivana
AU  - Kostić, Mirjana M.
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5815
AB  - Carbonized hemp fibers obtained by carbonization of origin and chemically modified waste hemp fibers was used as a low-cost sorbent for heavy metals removal. The efficiency of carbonized hemp fiber samples as a sorbent was tested through the adsorption of lead ions as a heavy metal model ion. Although changes in carbon precursor structure, induced by chemical modification, affect the sorption process and sorption capacity of carbonized hemp fibers, all carbonized hemp fibers samples show good adsorption properties toward lead ions. Obtained experimental data was used for development of the mathematical model that describes both the phenomenon of metal ions transport through the porous sorbent matrices, and the structure of carbonized hemp fibers. Effective diffusion coefficient, damping coefficient and the lead ion concentration profile within the carbonized hemp fibers, obtained as results of proposed mathematical model, give the insight in the mechanism and the rate of adsorption process, while average tortuosity connected the sorbent structure and ions transport through the sorbent. A good agreement between model prediction for both structural and ion transport model parameters and the experimental data, indicates that the proposed mathematical model can be successfully used for optimization of heavy metal ions adsorption process by correlating the model parameters to the carbonized hemp fibers performances. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Journal
T1  - Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport
VL  - 235
SP  - 284
EP  - 292
DO  - 10.1016/j.cej.2013.09.047
ER  - 

@article{
author = "Vukčević, Marija and Pejić, Biljana and Kalijadis, Ana and Pajić-Lijaković, Ivana and Kostić, Mirjana M. and Laušević, Zoran and Laušević, Mila D.",
year = "2014",
abstract = "Carbonized hemp fibers obtained by carbonization of origin and chemically modified waste hemp fibers was used as a low-cost sorbent for heavy metals removal. The efficiency of carbonized hemp fiber samples as a sorbent was tested through the adsorption of lead ions as a heavy metal model ion. Although changes in carbon precursor structure, induced by chemical modification, affect the sorption process and sorption capacity of carbonized hemp fibers, all carbonized hemp fibers samples show good adsorption properties toward lead ions. Obtained experimental data was used for development of the mathematical model that describes both the phenomenon of metal ions transport through the porous sorbent matrices, and the structure of carbonized hemp fibers. Effective diffusion coefficient, damping coefficient and the lead ion concentration profile within the carbonized hemp fibers, obtained as results of proposed mathematical model, give the insight in the mechanism and the rate of adsorption process, while average tortuosity connected the sorbent structure and ions transport through the sorbent. A good agreement between model prediction for both structural and ion transport model parameters and the experimental data, indicates that the proposed mathematical model can be successfully used for optimization of heavy metal ions adsorption process by correlating the model parameters to the carbonized hemp fibers performances. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Journal",
title = "Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport",
volume = "235",
pages = "284-292",
doi = "10.1016/j.cej.2013.09.047"
}

Vukčević, M., Pejić, B., Kalijadis, A., Pajić-Lijaković, I., Kostić, M. M., Laušević, Z.,& Laušević, M. D.. (2014). Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport. in Chemical Engineering Journal, 235, 284-292.
https://doi.org/10.1016/j.cej.2013.09.047

Vukčević M, Pejić B, Kalijadis A, Pajić-Lijaković I, Kostić MM, Laušević Z, Laušević MD. Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport. in Chemical Engineering Journal. 2014;235:284-292.
doi:10.1016/j.cej.2013.09.047 .

Vukčević, Marija, Pejić, Biljana, Kalijadis, Ana, Pajić-Lijaković, Ivana, Kostić, Mirjana M., Laušević, Zoran, Laušević, Mila D., "Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport" in Chemical Engineering Journal, 235 (2014):284-292,
https://doi.org/10.1016/j.cej.2013.09.047 . .

TY  - CONF
AU  - Vukčević, Mira
AU  - Pajić-Lijaković, Ivana
AU  - Kalijadis, Ana
AU  - Laušević, Zoran
AU  - Laušević, Mila
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9225
AB  - Activated carbon obtained by carbonization and activation of waste hemp
fibers was used as an efficient, low-cost sorbent for pesticide removal. Data
obtained from batch and continuous process of pesticide adsorption was
used for development of the mathematical model that describes the
phenomenon of pesticide transport through the porous sorbent matrices.
Effective diffusion coefficient and the pesticide concentration profile within
the activated hemp fibers, obtained as results of proposed model, give the
insight in the mechanism and the rate of adsorption process and pesticide
transport through the sorbent. A good agreement between model prediction
and the experimental data indicates that the proposed mathematical model
can be successfully used for optimization and selection of appropriate
adsorption process for pesticide removal.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Mathematical modeling of pesticide adsorption on activated hemp fibers
VL  - K-04-O
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9225
ER  - 

@conference{
author = "Vukčević, Mira and Pajić-Lijaković, Ivana and Kalijadis, Ana and Laušević, Zoran and Laušević, Mila",
year = "2014",
abstract = "Activated carbon obtained by carbonization and activation of waste hemp
fibers was used as an efficient, low-cost sorbent for pesticide removal. Data
obtained from batch and continuous process of pesticide adsorption was
used for development of the mathematical model that describes the
phenomenon of pesticide transport through the porous sorbent matrices.
Effective diffusion coefficient and the pesticide concentration profile within
the activated hemp fibers, obtained as results of proposed model, give the
insight in the mechanism and the rate of adsorption process and pesticide
transport through the sorbent. A good agreement between model prediction
and the experimental data indicates that the proposed mathematical model
can be successfully used for optimization and selection of appropriate
adsorption process for pesticide removal.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Mathematical modeling of pesticide adsorption on activated hemp fibers",
volume = "K-04-O",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9225"
}

Vukčević, M., Pajić-Lijaković, I., Kalijadis, A., Laušević, Z.,& Laušević, M.. (2014). Mathematical modeling of pesticide adsorption on activated hemp fibers. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., K-04-O.
https://hdl.handle.net/21.15107/rcub_vinar_9225

Vukčević M, Pajić-Lijaković I, Kalijadis A, Laušević Z, Laušević M. Mathematical modeling of pesticide adsorption on activated hemp fibers. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;K-04-O.
https://hdl.handle.net/21.15107/rcub_vinar_9225 .

Vukčević, Mira, Pajić-Lijaković, Ivana, Kalijadis, Ana, Laušević, Zoran, Laušević, Mila, "Mathematical modeling of pesticide adsorption on activated hemp fibers" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, K-04-O (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9225 .

TY  - CONF
AU  - Kalijadis, Ana
AU  - Vukčević, Mira
AU  - Maletić, Marina
AU  - Laušević, Mila
AU  - Laušević, Zoran
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9235
AB  - Structural and surface characterization of pristine and boron doped
carbonized hydrothermal carbons (CHTC) is reported. Boron was
introduced into glucose precursor solution with concentration of 0.2% and
1%. Following hydrothermal treatment, samples were carbonized to 1000oC
and examined by Raman spectroscopy and temperature programmed
desorption. Characterization of obtained samples as material for carbon
paste electrode was performed by cyclic voltammetry measurements of the
Fe (CN)6
3-/4- redox couple. Structural analysis showed that lower boron
content in precursor solution induced structure ordering, while higher
amount of boron caused structural disorder of CHTC sample. Boron
presence in CHTC samples reduced number of surface active sites for
oxygen adsorption and consequently improved their electrochemical
response as electrode material for carbon paste electrode.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Thermal treatment influence on the surface characteristics of the borondoped hydrothermal carbon
VL  - H-22-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9235
ER  - 

@conference{
author = "Kalijadis, Ana and Vukčević, Mira and Maletić, Marina and Laušević, Mila and Laušević, Zoran",
year = "2014",
abstract = "Structural and surface characterization of pristine and boron doped
carbonized hydrothermal carbons (CHTC) is reported. Boron was
introduced into glucose precursor solution with concentration of 0.2% and
1%. Following hydrothermal treatment, samples were carbonized to 1000oC
and examined by Raman spectroscopy and temperature programmed
desorption. Characterization of obtained samples as material for carbon
paste electrode was performed by cyclic voltammetry measurements of the
Fe (CN)6
3-/4- redox couple. Structural analysis showed that lower boron
content in precursor solution induced structure ordering, while higher
amount of boron caused structural disorder of CHTC sample. Boron
presence in CHTC samples reduced number of surface active sites for
oxygen adsorption and consequently improved their electrochemical
response as electrode material for carbon paste electrode.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Thermal treatment influence on the surface characteristics of the borondoped hydrothermal carbon",
volume = "H-22-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9235"
}

Kalijadis, A., Vukčević, M., Maletić, M., Laušević, M.,& Laušević, Z.. (2014). Thermal treatment influence on the surface characteristics of the borondoped hydrothermal carbon. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., H-22-P.
https://hdl.handle.net/21.15107/rcub_vinar_9235

Kalijadis A, Vukčević M, Maletić M, Laušević M, Laušević Z. Thermal treatment influence on the surface characteristics of the borondoped hydrothermal carbon. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;H-22-P.
https://hdl.handle.net/21.15107/rcub_vinar_9235 .

Kalijadis, Ana, Vukčević, Mira, Maletić, Marina, Laušević, Mila, Laušević, Zoran, "Thermal treatment influence on the surface characteristics of the borondoped hydrothermal carbon" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, H-22-P (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9235 .

TY  - JOUR
AU  - Markovski, Jasmina S.
AU  - Markovic, Dana D.
AU  - Đokić, Veljko R.
AU  - Mitrić, Miodrag
AU  - Ristić, Mirjana
AU  - Onjia, Antonije E.
AU  - Marinković, Aleksandar D.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5843
AB  - An efficient adsorbents for arsenate removal was developed by modification of calcined eggshell with goethite (calcined eggshell/goethite; sorbent 1), alpha-MnO2 (calcined eggshell/alpha-MnO2; sorbent 2) and hybride system goethite/alpha-MnO2 (calcined eggshell/goethite/alpha-MnO2; sorbent 3). Methods and processes for preparation of novel adsorbents were defined and obtained materials were characterized by BET, XRD, SEM and FTIR analysis. The influence of functionalization methods, solution pH, contact time, temperature, interfering ions and initial arsenate concentration on efficiencies of arsenate adsorption were studied in a batch system. Based on the orthogonal distance regression (ODR) fitting, using R-2, MARE and RMSRE statistical criteria, Langmuir and Sips equations were chosen for description of adsorption equilibriums on sorbents 1 and 3, respectively. The maximum adsorption capacities of 33.38 mg g(-1), 13.54 mg g(-1) and 47.04 mg g(-1) for sorbents 1-3, respectively, were obtained. Time-dependent study revealed that pseudo-second-order equation fitted well the kinetic data, while the Weber Morison model predicted intra-particle diffusion as main adsorption rate controlling step. Thermodynamic parameters indicated exothermic, feasible and spontaneous nature of adsorption process on sorbents I and 3. Results of Visual MINTEQ equilibrium speciation modeling program was used for studying pH, ionic strength and interfering ions influences on arsenate adsorption. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Journal
T1  - Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2
VL  - 237
SP  - 430
EP  - 442
DO  - 10.1016/j.cej.2013.10.031
ER  - 

@article{
author = "Markovski, Jasmina S. and Markovic, Dana D. and Đokić, Veljko R. and Mitrić, Miodrag and Ristić, Mirjana and Onjia, Antonije E. and Marinković, Aleksandar D.",
year = "2014",
abstract = "An efficient adsorbents for arsenate removal was developed by modification of calcined eggshell with goethite (calcined eggshell/goethite; sorbent 1), alpha-MnO2 (calcined eggshell/alpha-MnO2; sorbent 2) and hybride system goethite/alpha-MnO2 (calcined eggshell/goethite/alpha-MnO2; sorbent 3). Methods and processes for preparation of novel adsorbents were defined and obtained materials were characterized by BET, XRD, SEM and FTIR analysis. The influence of functionalization methods, solution pH, contact time, temperature, interfering ions and initial arsenate concentration on efficiencies of arsenate adsorption were studied in a batch system. Based on the orthogonal distance regression (ODR) fitting, using R-2, MARE and RMSRE statistical criteria, Langmuir and Sips equations were chosen for description of adsorption equilibriums on sorbents 1 and 3, respectively. The maximum adsorption capacities of 33.38 mg g(-1), 13.54 mg g(-1) and 47.04 mg g(-1) for sorbents 1-3, respectively, were obtained. Time-dependent study revealed that pseudo-second-order equation fitted well the kinetic data, while the Weber Morison model predicted intra-particle diffusion as main adsorption rate controlling step. Thermodynamic parameters indicated exothermic, feasible and spontaneous nature of adsorption process on sorbents I and 3. Results of Visual MINTEQ equilibrium speciation modeling program was used for studying pH, ionic strength and interfering ions influences on arsenate adsorption. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Journal",
title = "Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2",
volume = "237",
pages = "430-442",
doi = "10.1016/j.cej.2013.10.031"
}

Markovski, J. S., Markovic, D. D., Đokić, V. R., Mitrić, M., Ristić, M., Onjia, A. E.,& Marinković, A. D.. (2014). Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2. in Chemical Engineering Journal, 237, 430-442.
https://doi.org/10.1016/j.cej.2013.10.031

Markovski JS, Markovic DD, Đokić VR, Mitrić M, Ristić M, Onjia AE, Marinković AD. Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2. in Chemical Engineering Journal. 2014;237:430-442.
doi:10.1016/j.cej.2013.10.031 .

Markovski, Jasmina S., Markovic, Dana D., Đokić, Veljko R., Mitrić, Miodrag, Ristić, Mirjana, Onjia, Antonije E., Marinković, Aleksandar D., "Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2" in Chemical Engineering Journal, 237 (2014):430-442,
https://doi.org/10.1016/j.cej.2013.10.031 . .