TY  - JOUR
AU  - Ognjanović, Miloš
AU  - Nikolić, Katarina M.
AU  - Radenković, Marina
AU  - Lolić, Aleksandar Đ.
AU  - Stanković, Dalibor M.
AU  - Živković, Sanja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10501
AB  - Gallic acid (GA) is one of the most important and present natural phenolic compounds due to its well-known biological properties, and its detection and monitoring is of great importance. Silver nanoparticles (AgNPs) are one of the most studied metallic nanomaterials used in various fields, from biomedical applications to electrochemical sensing devices. In this work, we used the pulsed laser ablation technique in liquid for the one-step preparation of nanoparticles of silver from a pure silver plate base in N,N-dimethylformamide. Obtained nanomaterial was characterized using morphological and electrochemical methods and used for modification of screen-printed carbon electrodes (SPCE). Successful immobilization at the surface is confirmed using the surface profiling method. A newly obtained sensor was used for the detection of GA. After parameters optimization, a differential pulse voltammetric protocol was developed, using two approaches - concentration vs. current (GA determination) and peak area vs. current (estimation of the antioxidant capacity). For the first approach sensor linearity was found to be in the range from 0.50 µM to 10 µM, with the limit of detection (LOD) of 0.16 µM and limit of quantification (LOQ) of 0.50 µM. In the second system operating linear range was the same, while LOD and LOQ were 0.11 µM and 0.34 µM, respectively. Practical application of the method was tested using two approaches: direct measurement of gallic acid in biological fluids and estimation of the antioxidant capacity and food quality purpose.
T2  - Surfaces and Interfaces
T1  - Picosecond laser-assisted synthesis of silver nanoparticles with high practical application as electroanalytical sensor
VL  - 35
SP  - 102464
DO  - 10.1016/j.surfin.2022.102464
ER  - 

@article{
author = "Ognjanović, Miloš and Nikolić, Katarina M. and Radenković, Marina and Lolić, Aleksandar Đ. and Stanković, Dalibor M. and Živković, Sanja",
year = "2022",
abstract = "Gallic acid (GA) is one of the most important and present natural phenolic compounds due to its well-known biological properties, and its detection and monitoring is of great importance. Silver nanoparticles (AgNPs) are one of the most studied metallic nanomaterials used in various fields, from biomedical applications to electrochemical sensing devices. In this work, we used the pulsed laser ablation technique in liquid for the one-step preparation of nanoparticles of silver from a pure silver plate base in N,N-dimethylformamide. Obtained nanomaterial was characterized using morphological and electrochemical methods and used for modification of screen-printed carbon electrodes (SPCE). Successful immobilization at the surface is confirmed using the surface profiling method. A newly obtained sensor was used for the detection of GA. After parameters optimization, a differential pulse voltammetric protocol was developed, using two approaches - concentration vs. current (GA determination) and peak area vs. current (estimation of the antioxidant capacity). For the first approach sensor linearity was found to be in the range from 0.50 µM to 10 µM, with the limit of detection (LOD) of 0.16 µM and limit of quantification (LOQ) of 0.50 µM. In the second system operating linear range was the same, while LOD and LOQ were 0.11 µM and 0.34 µM, respectively. Practical application of the method was tested using two approaches: direct measurement of gallic acid in biological fluids and estimation of the antioxidant capacity and food quality purpose.",
journal = "Surfaces and Interfaces",
title = "Picosecond laser-assisted synthesis of silver nanoparticles with high practical application as electroanalytical sensor",
volume = "35",
pages = "102464",
doi = "10.1016/j.surfin.2022.102464"
}

Ognjanović, M., Nikolić, K. M., Radenković, M., Lolić, A. Đ., Stanković, D. M.,& Živković, S.. (2022). Picosecond laser-assisted synthesis of silver nanoparticles with high practical application as electroanalytical sensor. in Surfaces and Interfaces, 35, 102464.
https://doi.org/10.1016/j.surfin.2022.102464

Ognjanović M, Nikolić KM, Radenković M, Lolić AĐ, Stanković DM, Živković S. Picosecond laser-assisted synthesis of silver nanoparticles with high practical application as electroanalytical sensor. in Surfaces and Interfaces. 2022;35:102464.
doi:10.1016/j.surfin.2022.102464 .

Ognjanović, Miloš, Nikolić, Katarina M., Radenković, Marina, Lolić, Aleksandar Đ., Stanković, Dalibor M., Živković, Sanja, "Picosecond laser-assisted synthesis of silver nanoparticles with high practical application as electroanalytical sensor" in Surfaces and Interfaces, 35 (2022):102464,
https://doi.org/10.1016/j.surfin.2022.102464 . .

TY  - JOUR
AU  - Krstić, Aleksandar D.
AU  - Lolić, Aleksandar
AU  - Mirković, Miljana M.
AU  - Kovač, Janez
AU  - Minović-Arsić, Tamara
AU  - Babić, Biljana
AU  - Kalijadis, Ana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10552
AB  - In this study carbon cryogel, cryogel doped with nitrogen, and both nitrogen and sulfur co-doped carbon cryogels (nominal concentration of nitrogen was in the range 2–10 wt%) were synthesized and used as an adsorbent for the removal of carbamazepine, naproxen, diazepam and diclofenac from water. A batch adsorption kinetics study was performed by determination of contact time influence, the effect of pH, and adsorption isotherms. Structural and morphological analysis showed that there are no changes in turbostratic carbon structure induced by doping/co-doping, but noticeable morphology changes were observed. The presence of both nitrogen and nitrogen/sulfur were confirmed and results showed low content on the surface, especially for sulfur. Obtained high values of the specific surface area for co-doped samples (up to 1530 m2/g) can be caused by sulfur atoms burning or leaving the material during carbonization. The results of the adsorption kinetics study showed that the adsorption of all pharmaceuticals on all tested samples followed the pseudo-second-order kinetic model. The maximum adsorption capacity obtained from the Langmuir isotherm model is higher for doped (91.28–168.92 mg/g) and co-doped (152.97–488.06 mg/g) samples than for pristine sample (59.75–266.28 mg/g). Calculated adsorption energy values from the Dubinin-Radushkevich model indicate that the possible mechanism was physisorption. Desorption tests that were carried out showed satisfactory reusability for all samples. The favorable adsorption characteristics for the co-doped sample with a higher nominal concentration of nitrogen and sulfur qualifies as a potentially good adsorbent for the removal of pharmaceuticals from water.
T2  - Journal of Environmental Chemical Engineering
T1  - Synthesis of nitrogen doped and nitrogen and sulfur co-doped carbon cryogels and their application for pharmaceuticals removal from water
VL  - 10
IS  - 6
SP  - 108998
DO  - 10.1016/j.jece.2022.108998
ER  - 

@article{
author = "Krstić, Aleksandar D. and Lolić, Aleksandar and Mirković, Miljana M. and Kovač, Janez and Minović-Arsić, Tamara and Babić, Biljana and Kalijadis, Ana",
year = "2022",
abstract = "In this study carbon cryogel, cryogel doped with nitrogen, and both nitrogen and sulfur co-doped carbon cryogels (nominal concentration of nitrogen was in the range 2–10 wt%) were synthesized and used as an adsorbent for the removal of carbamazepine, naproxen, diazepam and diclofenac from water. A batch adsorption kinetics study was performed by determination of contact time influence, the effect of pH, and adsorption isotherms. Structural and morphological analysis showed that there are no changes in turbostratic carbon structure induced by doping/co-doping, but noticeable morphology changes were observed. The presence of both nitrogen and nitrogen/sulfur were confirmed and results showed low content on the surface, especially for sulfur. Obtained high values of the specific surface area for co-doped samples (up to 1530 m2/g) can be caused by sulfur atoms burning or leaving the material during carbonization. The results of the adsorption kinetics study showed that the adsorption of all pharmaceuticals on all tested samples followed the pseudo-second-order kinetic model. The maximum adsorption capacity obtained from the Langmuir isotherm model is higher for doped (91.28–168.92 mg/g) and co-doped (152.97–488.06 mg/g) samples than for pristine sample (59.75–266.28 mg/g). Calculated adsorption energy values from the Dubinin-Radushkevich model indicate that the possible mechanism was physisorption. Desorption tests that were carried out showed satisfactory reusability for all samples. The favorable adsorption characteristics for the co-doped sample with a higher nominal concentration of nitrogen and sulfur qualifies as a potentially good adsorbent for the removal of pharmaceuticals from water.",
journal = "Journal of Environmental Chemical Engineering",
title = "Synthesis of nitrogen doped and nitrogen and sulfur co-doped carbon cryogels and their application for pharmaceuticals removal from water",
volume = "10",
number = "6",
pages = "108998",
doi = "10.1016/j.jece.2022.108998"
}

Krstić, A. D., Lolić, A., Mirković, M. M., Kovač, J., Minović-Arsić, T., Babić, B.,& Kalijadis, A.. (2022). Synthesis of nitrogen doped and nitrogen and sulfur co-doped carbon cryogels and their application for pharmaceuticals removal from water. in Journal of Environmental Chemical Engineering, 10(6), 108998.
https://doi.org/10.1016/j.jece.2022.108998

Krstić AD, Lolić A, Mirković MM, Kovač J, Minović-Arsić T, Babić B, Kalijadis A. Synthesis of nitrogen doped and nitrogen and sulfur co-doped carbon cryogels and their application for pharmaceuticals removal from water. in Journal of Environmental Chemical Engineering. 2022;10(6):108998.
doi:10.1016/j.jece.2022.108998 .

Krstić, Aleksandar D., Lolić, Aleksandar, Mirković, Miljana M., Kovač, Janez, Minović-Arsić, Tamara, Babić, Biljana, Kalijadis, Ana, "Synthesis of nitrogen doped and nitrogen and sulfur co-doped carbon cryogels and their application for pharmaceuticals removal from water" in Journal of Environmental Chemical Engineering, 10, no. 6 (2022):108998,
https://doi.org/10.1016/j.jece.2022.108998 . .