TY  - JOUR
AU  - Mutić, Tijana
AU  - Ognjanović, Miloš
AU  - Kodranov, Igor
AU  - Robić, Marko
AU  - Savić, Slađana
AU  - Krehula, Stjepko
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10737
AB  - In this work, we investigated the morphological and electrochemical properties of gallium/bismuth mixed oxide. The bismuth concentration was varied from 0 to 100%. The correct ratio was determined with inductively coupled plasma-optical emission spectroscopy (ICP-OES), while surface characteristics were determined using scanning electron microscopy (SEM) and X-ray diffraction (XRD) measurement. Electrochemical characteristics were studied using electrochemical impedance spectroscopy (EIS) in the Fe2+/3+ couple. The obtained materials were tested for adrenaline detection. After square wave voltammetry (SWV) optimization, the best electrode showed a wide linear working range from 7 to 100 µM at pH 6 of the Britton–Robinson buffer solution (BRBS) supporting electrolyte. The limit of detection (LOD) for the proposed method was calculated as 1.9 µM, with a limit of quantification (LOQ) of 5.8 µM. The excellent selectivity of the proposed method, with good repeatability and reproducibility, strongly suggests the possible application of the procedure for the determination of adrenaline in artificially prepared real samples. The practical applicability with good recovery values indicates that the morphology of the materials is closely connected with other parameters, which further suggests that the developed approach can offer a low-cost, rapid, selective, and sensitive method for adrenaline monitoring. Graphical abstract: [Figure not available: see fulltext.] © 2023, Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Analytical and Bioanalytical Chemistry
T1  - The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline
VL  - 415
SP  - 4445
EP  - 4458
DO  - 10.1007/s00216-023-04617-7
ER  - 

@article{
author = "Mutić, Tijana and Ognjanović, Miloš and Kodranov, Igor and Robić, Marko and Savić, Slađana and Krehula, Stjepko and Stanković, Dalibor M.",
year = "2023",
abstract = "In this work, we investigated the morphological and electrochemical properties of gallium/bismuth mixed oxide. The bismuth concentration was varied from 0 to 100%. The correct ratio was determined with inductively coupled plasma-optical emission spectroscopy (ICP-OES), while surface characteristics were determined using scanning electron microscopy (SEM) and X-ray diffraction (XRD) measurement. Electrochemical characteristics were studied using electrochemical impedance spectroscopy (EIS) in the Fe2+/3+ couple. The obtained materials were tested for adrenaline detection. After square wave voltammetry (SWV) optimization, the best electrode showed a wide linear working range from 7 to 100 µM at pH 6 of the Britton–Robinson buffer solution (BRBS) supporting electrolyte. The limit of detection (LOD) for the proposed method was calculated as 1.9 µM, with a limit of quantification (LOQ) of 5.8 µM. The excellent selectivity of the proposed method, with good repeatability and reproducibility, strongly suggests the possible application of the procedure for the determination of adrenaline in artificially prepared real samples. The practical applicability with good recovery values indicates that the morphology of the materials is closely connected with other parameters, which further suggests that the developed approach can offer a low-cost, rapid, selective, and sensitive method for adrenaline monitoring. Graphical abstract: [Figure not available: see fulltext.] © 2023, Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Analytical and Bioanalytical Chemistry",
title = "The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline",
volume = "415",
pages = "4445-4458",
doi = "10.1007/s00216-023-04617-7"
}

Mutić, T., Ognjanović, M., Kodranov, I., Robić, M., Savić, S., Krehula, S.,& Stanković, D. M.. (2023). The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline. in Analytical and Bioanalytical Chemistry, 415, 4445-4458.
https://doi.org/10.1007/s00216-023-04617-7

Mutić T, Ognjanović M, Kodranov I, Robić M, Savić S, Krehula S, Stanković DM. The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline. in Analytical and Bioanalytical Chemistry. 2023;415:4445-4458.
doi:10.1007/s00216-023-04617-7 .

Mutić, Tijana, Ognjanović, Miloš, Kodranov, Igor, Robić, Marko, Savić, Slađana, Krehula, Stjepko, Stanković, Dalibor M., "The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline" in Analytical and Bioanalytical Chemistry, 415 (2023):4445-4458,
https://doi.org/10.1007/s00216-023-04617-7 . .

TY  - JOUR
AU  - Mutić, Tijana
AU  - Ognjanović, Miloš
AU  - Kodranov, Igor
AU  - Robić, Marko
AU  - Savić, Slađana
AU  - Krehula, Stjepko
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10855
AB  - Author Tijana Mutić should be afliated to afliation 4.
Afliation 4 should be added: Faculty of Pharmacy University of Belgrade – Department of Analytical Chemistry, Vojvode Stepe 450, 11,221 Belgrade, Serbia
T2  - Analytical and Bioanalytical Chemistry
T1  - Correction to: The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline
DO  - 10.1007/s00216-023-04674-y
ER  - 

@article{
author = "Mutić, Tijana and Ognjanović, Miloš and Kodranov, Igor and Robić, Marko and Savić, Slađana and Krehula, Stjepko and Stanković, Dalibor M.",
year = "2023",
abstract = "Author Tijana Mutić should be afliated to afliation 4.
Afliation 4 should be added: Faculty of Pharmacy University of Belgrade – Department of Analytical Chemistry, Vojvode Stepe 450, 11,221 Belgrade, Serbia",
journal = "Analytical and Bioanalytical Chemistry",
title = "Correction to: The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline",
doi = "10.1007/s00216-023-04674-y"
}

Mutić, T., Ognjanović, M., Kodranov, I., Robić, M., Savić, S., Krehula, S.,& Stanković, D. M.. (2023). Correction to: The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline. in Analytical and Bioanalytical Chemistry.
https://doi.org/10.1007/s00216-023-04674-y

Mutić T, Ognjanović M, Kodranov I, Robić M, Savić S, Krehula S, Stanković DM. Correction to: The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline. in Analytical and Bioanalytical Chemistry. 2023;.
doi:10.1007/s00216-023-04674-y .

Mutić, Tijana, Ognjanović, Miloš, Kodranov, Igor, Robić, Marko, Savić, Slađana, Krehula, Stjepko, Stanković, Dalibor M., "Correction to: The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline" in Analytical and Bioanalytical Chemistry (2023),
https://doi.org/10.1007/s00216-023-04674-y . .

TY  - JOUR
AU  - Popov, Nina
AU  - Bošković, Marko
AU  - Perović, Marija M.
AU  - Zadro, Krešo
AU  - Gilja, Vanja
AU  - Kratofil Krenula, Ljerka
AU  - Robić, Marko
AU  - Marijan, Marciuš
AU  - Ristić, Mira
AU  - Musić, Svetozar
AU  - Stanković, Dalibor M.
AU  - Krehula, Stjepko
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9882
AB  - Nanosized hematite (α-Fe2O3) is a widely investigated material due to its favourable properties (chemically stable, environmentally safe, inexpensive) and very good performance in several advanced applications. Properties and performance of hematite nanoparticles can be adjusted and improved by modification of particle size and shape, as well as by substitution of Fe3+ ions in the crystal structure of hematite with other metal ions. Ru3+ ions are potentially suitable metal ions for the substitution of Fe3+ ions in hematite because of the same charge and similar ionic radii. In the present work, the effects of Ru3+ ions on the formation and properties of hematite nanorods prepared by combination of hydrothermal precipitation and calcination were investigated. The influence of the molar fraction of Ru3+ ions in the hydrothermal precipitation system on the formation and properties of iron oxide phases was studied. Single-phase goethite (α-FeOOH) nanorods containing incorporated Ru3+ ions were formed in the presence of low levels of Ru3+ ions (<3 mol%), while at higher levels (4 and 5 mol% Ru) hematite nanocylinders, consisting of self-assembled and fused nanoparticles, were obtained. The mechanism of the formation of these iron oxide nanostructures in the presence of Ru3+ ions was explained and compared with the effect of other metal cations reported in the literature. Ru-doped hematite nanorods were formed after calcination of Ru-doped goethite nanorods at 500 °C. A gradual elongation of hematite nanorods with increased Ru doping to highly elongated Ru-doped hematite nanoneedles at 2 mol% Ru was observed and explained. The influence of the Ru doping level on the magnetic properties of hematite nanorods was investigated using Mössbauer spectroscopy and magnetic measurements. Temperature of the transition between antiferromagnetic (AFM) and weakly ferromagnetic (WFM) spin ordering state (Morin transition) gradually rose with increasing Ru3+-for-Fe3+ substitution in hematite. Besides, magnetization of the WFM hematite gradually decreased with Ru doping which was attributed to the reduced canting of two almost antiparallel spin sublattices in this phase. The optical band gap in hematite nanorods was found to get gradually narrower with increased Ru doping due to the modified electronic structure.
T2  - Journal of magnetism and magnetic materials
T2  - Journal of magnetism and magnetic materials
T1  - Effect of Ru3+ ions on the formation, structural, magnetic and optical properties of hematite (α-Fe2O3) nanorods
VL  - 538
SP  - 168316
EP  - 168321
DO  - 10.1016/j.jmmm.2021.168316
ER  - 

@article{
author = "Popov, Nina and Bošković, Marko and Perović, Marija M. and Zadro, Krešo and Gilja, Vanja and Kratofil Krenula, Ljerka and Robić, Marko and Marijan, Marciuš and Ristić, Mira and Musić, Svetozar and Stanković, Dalibor M. and Krehula, Stjepko",
year = "2021",
abstract = "Nanosized hematite (α-Fe2O3) is a widely investigated material due to its favourable properties (chemically stable, environmentally safe, inexpensive) and very good performance in several advanced applications. Properties and performance of hematite nanoparticles can be adjusted and improved by modification of particle size and shape, as well as by substitution of Fe3+ ions in the crystal structure of hematite with other metal ions. Ru3+ ions are potentially suitable metal ions for the substitution of Fe3+ ions in hematite because of the same charge and similar ionic radii. In the present work, the effects of Ru3+ ions on the formation and properties of hematite nanorods prepared by combination of hydrothermal precipitation and calcination were investigated. The influence of the molar fraction of Ru3+ ions in the hydrothermal precipitation system on the formation and properties of iron oxide phases was studied. Single-phase goethite (α-FeOOH) nanorods containing incorporated Ru3+ ions were formed in the presence of low levels of Ru3+ ions (<3 mol%), while at higher levels (4 and 5 mol% Ru) hematite nanocylinders, consisting of self-assembled and fused nanoparticles, were obtained. The mechanism of the formation of these iron oxide nanostructures in the presence of Ru3+ ions was explained and compared with the effect of other metal cations reported in the literature. Ru-doped hematite nanorods were formed after calcination of Ru-doped goethite nanorods at 500 °C. A gradual elongation of hematite nanorods with increased Ru doping to highly elongated Ru-doped hematite nanoneedles at 2 mol% Ru was observed and explained. The influence of the Ru doping level on the magnetic properties of hematite nanorods was investigated using Mössbauer spectroscopy and magnetic measurements. Temperature of the transition between antiferromagnetic (AFM) and weakly ferromagnetic (WFM) spin ordering state (Morin transition) gradually rose with increasing Ru3+-for-Fe3+ substitution in hematite. Besides, magnetization of the WFM hematite gradually decreased with Ru doping which was attributed to the reduced canting of two almost antiparallel spin sublattices in this phase. The optical band gap in hematite nanorods was found to get gradually narrower with increased Ru doping due to the modified electronic structure.",
journal = "Journal of magnetism and magnetic materials, Journal of magnetism and magnetic materials",
title = "Effect of Ru3+ ions on the formation, structural, magnetic and optical properties of hematite (α-Fe2O3) nanorods",
volume = "538",
pages = "168316-168321",
doi = "10.1016/j.jmmm.2021.168316"
}

Popov, N., Bošković, M., Perović, M. M., Zadro, K., Gilja, V., Kratofil Krenula, L., Robić, M., Marijan, M., Ristić, M., Musić, S., Stanković, D. M.,& Krehula, S.. (2021). Effect of Ru3+ ions on the formation, structural, magnetic and optical properties of hematite (α-Fe2O3) nanorods. in Journal of magnetism and magnetic materials, 538, 168316-168321.
https://doi.org/10.1016/j.jmmm.2021.168316

Popov N, Bošković M, Perović MM, Zadro K, Gilja V, Kratofil Krenula L, Robić M, Marijan M, Ristić M, Musić S, Stanković DM, Krehula S. Effect of Ru3+ ions on the formation, structural, magnetic and optical properties of hematite (α-Fe2O3) nanorods. in Journal of magnetism and magnetic materials. 2021;538:168316-168321.
doi:10.1016/j.jmmm.2021.168316 .

Popov, Nina, Bošković, Marko, Perović, Marija M., Zadro, Krešo, Gilja, Vanja, Kratofil Krenula, Ljerka, Robić, Marko, Marijan, Marciuš, Ristić, Mira, Musić, Svetozar, Stanković, Dalibor M., Krehula, Stjepko, "Effect of Ru3+ ions on the formation, structural, magnetic and optical properties of hematite (α-Fe2O3) nanorods" in Journal of magnetism and magnetic materials, 538 (2021):168316-168321,
https://doi.org/10.1016/j.jmmm.2021.168316 . .