TY  - JOUR
AU  - Jose, Ajay
AU  - Yadav, Pooja
AU  - Svirskis, Darren
AU  - Swift, Simon
AU  - Gizdavić-Nikolaidis, Marija
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12827
AB  - Surface contamination and transmission can lead to Hospital Acquired Infections (HAI) in a healthcare environment. To tackle this problem, a sustainable antimicrobial coating is desirable. Photocatalytic coatings with titanium dioxide (TiO2) as the main component activated by UV light are one option. In order to implement the coating in a real-world hospital setting the photocatalytic component must show activity under visible light. In this article the TiO2 photocatalyst was synthesised as both 2- and 3- component composites with polyaniline (PANI) or poly(aniline-co-3-aminobenzoic acid) (fPANI) and Ag nanoparticles to achieve photocatalytic performance activated by visible light. The UV-DRS results supported the visible light photocatalytic capability of both 2- and 3-component composite systems, and the ESR spectra exhibited the presence of charge carriers (unpaired electrons), which was confirmed by conductivity studies. The intensity of the ESR peak increases around 3-fold for PANI/fPANI-TiO2-Ag composites compared to pure PANI/fPANI. The conductivity of pure PANI and fPANI was only mildly enhanced in 3-component systems, which could be due to presence of TiO2, whereas the value increased by around three times for PANI/fPANI-Ag 2-component system due to conductive Ag nanoparticles. The composites with fPANI showed improved antimicrobial activity than PANI composites against three representative microorganisms Escherichia coli, Staphylococcus aureus and a model viral strain bacteriophage Phi X 174. Finally, we proposed a mechanism for photocatalytic activity for both 2- and 3- component systems.
T2  - Synthetic Metals
T1  - Antimicrobial photocatalytic PANI based-composites for biomedical applications
VL  - 303
SP  - 117562
DO  - 10.1016/j.synthmet.2024.117562
ER  - 

@article{
author = "Jose, Ajay and Yadav, Pooja and Svirskis, Darren and Swift, Simon and Gizdavić-Nikolaidis, Marija",
year = "2024",
abstract = "Surface contamination and transmission can lead to Hospital Acquired Infections (HAI) in a healthcare environment. To tackle this problem, a sustainable antimicrobial coating is desirable. Photocatalytic coatings with titanium dioxide (TiO2) as the main component activated by UV light are one option. In order to implement the coating in a real-world hospital setting the photocatalytic component must show activity under visible light. In this article the TiO2 photocatalyst was synthesised as both 2- and 3- component composites with polyaniline (PANI) or poly(aniline-co-3-aminobenzoic acid) (fPANI) and Ag nanoparticles to achieve photocatalytic performance activated by visible light. The UV-DRS results supported the visible light photocatalytic capability of both 2- and 3-component composite systems, and the ESR spectra exhibited the presence of charge carriers (unpaired electrons), which was confirmed by conductivity studies. The intensity of the ESR peak increases around 3-fold for PANI/fPANI-TiO2-Ag composites compared to pure PANI/fPANI. The conductivity of pure PANI and fPANI was only mildly enhanced in 3-component systems, which could be due to presence of TiO2, whereas the value increased by around three times for PANI/fPANI-Ag 2-component system due to conductive Ag nanoparticles. The composites with fPANI showed improved antimicrobial activity than PANI composites against three representative microorganisms Escherichia coli, Staphylococcus aureus and a model viral strain bacteriophage Phi X 174. Finally, we proposed a mechanism for photocatalytic activity for both 2- and 3- component systems.",
journal = "Synthetic Metals",
title = "Antimicrobial photocatalytic PANI based-composites for biomedical applications",
volume = "303",
pages = "117562",
doi = "10.1016/j.synthmet.2024.117562"
}

Jose, A., Yadav, P., Svirskis, D., Swift, S.,& Gizdavić-Nikolaidis, M.. (2024). Antimicrobial photocatalytic PANI based-composites for biomedical applications. in Synthetic Metals, 303, 117562.
https://doi.org/10.1016/j.synthmet.2024.117562

Jose A, Yadav P, Svirskis D, Swift S, Gizdavić-Nikolaidis M. Antimicrobial photocatalytic PANI based-composites for biomedical applications. in Synthetic Metals. 2024;303:117562.
doi:10.1016/j.synthmet.2024.117562 .

Jose, Ajay, Yadav, Pooja, Svirskis, Darren, Swift, Simon, Gizdavić-Nikolaidis, Marija, "Antimicrobial photocatalytic PANI based-composites for biomedical applications" in Synthetic Metals, 303 (2024):117562,
https://doi.org/10.1016/j.synthmet.2024.117562 . .

TY  - CONF
AU  - Gizdavić-Nikolaidis, Marija
AU  - Jevremović, Milutin
AU  - Stanisavljev, Dragomir R.
AU  - Bowmaker, Graham  A.
AU  - Zujović, Zoran D.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9204
AB  - Energy- and time-efficient enhanced microwave syntheses (EMS) of polyaniline (PANI) have been carried out. The GPC results showed that the molecular weight of the microwave-generated materials depends on the applied microwave power. FTIR spectroscopies confirmed the formation of PANI. The presence of a mixed morphology with the prevalence of nanofibers with different aspect ratios is confirmed through SEM. The conductivity of the samples (ca. 3-3.5 S cm-1) is found to be relatively independent on the microwave power levels. The fact that the molecular weight depends on the power means that this approach can be fine-tuned to optimize conditions for a specific material using different power levels.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Enhanced microwave synthesis of polyaniline nanomaterials
VL  - H-15-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9204
ER  - 

@conference{
author = "Gizdavić-Nikolaidis, Marija and Jevremović, Milutin and Stanisavljev, Dragomir R. and Bowmaker, Graham  A. and Zujović, Zoran D.",
year = "2014",
abstract = "Energy- and time-efficient enhanced microwave syntheses (EMS) of polyaniline (PANI) have been carried out. The GPC results showed that the molecular weight of the microwave-generated materials depends on the applied microwave power. FTIR spectroscopies confirmed the formation of PANI. The presence of a mixed morphology with the prevalence of nanofibers with different aspect ratios is confirmed through SEM. The conductivity of the samples (ca. 3-3.5 S cm-1) is found to be relatively independent on the microwave power levels. The fact that the molecular weight depends on the power means that this approach can be fine-tuned to optimize conditions for a specific material using different power levels.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Enhanced microwave synthesis of polyaniline nanomaterials",
volume = "H-15-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9204"
}

Gizdavić-Nikolaidis, M., Jevremović, M., Stanisavljev, D. R., Bowmaker, Graham  A.,& Zujović, Z. D.. (2014). Enhanced microwave synthesis of polyaniline nanomaterials. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., H-15-P.
https://hdl.handle.net/21.15107/rcub_vinar_9204

Gizdavić-Nikolaidis M, Jevremović M, Stanisavljev DR, Bowmaker, Graham  A., Zujović ZD. Enhanced microwave synthesis of polyaniline nanomaterials. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;H-15-P.
https://hdl.handle.net/21.15107/rcub_vinar_9204 .

Gizdavić-Nikolaidis, Marija, Jevremović, Milutin, Stanisavljev, Dragomir R., Bowmaker, Graham  A., Zujović, Zoran D., "Enhanced microwave synthesis of polyaniline nanomaterials" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, H-15-P (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9204 .

TY  - CONF
AU  - Vujković, Milica
AU  - Milenković, M.
AU  - Jevremović, Milutin
AU  - Gizdavić-Nikolaidis, Marija
AU  - Stanisavljev, Dragomir R.
AU  - Mentus, Slavko V.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9227
AB  - High conducting polyaniline (PANI) nanofibres deposited onto glassy
carbon support were studied in sulphuric (1mol dm-3 H2SO4) and
hydrochloric (1mol dm-3 HCl) acid by both potentiodynamic and complex
impedance methods. A large charge storage capacity was obtained in each
of investigated acid solutions, particularly in HCl one. For instance, specific
capacity amounting to 340 Fg-1 was observed potentiodynamically in 1mol
dm-3 HCl at a scan rate of 10 mVs-1.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Pseudocapacitance behavior of polyaniline in aerated HC1 and H2SO4 solutions
VL  - E-17-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9227
ER  - 

@conference{
author = "Vujković, Milica and Milenković, M. and Jevremović, Milutin and Gizdavić-Nikolaidis, Marija and Stanisavljev, Dragomir R. and Mentus, Slavko V.",
year = "2014",
abstract = "High conducting polyaniline (PANI) nanofibres deposited onto glassy
carbon support were studied in sulphuric (1mol dm-3 H2SO4) and
hydrochloric (1mol dm-3 HCl) acid by both potentiodynamic and complex
impedance methods. A large charge storage capacity was obtained in each
of investigated acid solutions, particularly in HCl one. For instance, specific
capacity amounting to 340 Fg-1 was observed potentiodynamically in 1mol
dm-3 HCl at a scan rate of 10 mVs-1.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Pseudocapacitance behavior of polyaniline in aerated HC1 and H2SO4 solutions",
volume = "E-17-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9227"
}

Vujković, M., Milenković, M., Jevremović, M., Gizdavić-Nikolaidis, M., Stanisavljev, D. R.,& Mentus, S. V.. (2014). Pseudocapacitance behavior of polyaniline in aerated HC1 and H2SO4 solutions. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., E-17-P.
https://hdl.handle.net/21.15107/rcub_vinar_9227

Vujković M, Milenković M, Jevremović M, Gizdavić-Nikolaidis M, Stanisavljev DR, Mentus SV. Pseudocapacitance behavior of polyaniline in aerated HC1 and H2SO4 solutions. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;E-17-P.
https://hdl.handle.net/21.15107/rcub_vinar_9227 .

Vujković, Milica, Milenković, M., Jevremović, Milutin, Gizdavić-Nikolaidis, Marija, Stanisavljev, Dragomir R., Mentus, Slavko V., "Pseudocapacitance behavior of polyaniline in aerated HC1 and H2SO4 solutions" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, E-17-P (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9227 .