Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study
Samo za registrovane korisnike
2023
Autori
Kepić, Dejan P.Stefanović, Andjela M.
Budimir, Milica D.
Pavlović, Vladimir B.
Bonasera, Aurelio
Scopelliti, Michelangelo
Todorović-Marković, Biljana M.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Gamma irradiation provides an alternative pathway to conventional gold nanoparticle synthesis because it is simple, fast, and economical. Here, we employed gamma irradiation at low doses (1–20 kGy) to obtain gold nanoparticles (Au NPs) anchored onto graphene oxide (GO) sheets. GO was selected as a suitable platform for the nucleation and growth of Au NPs because of its large surface area and good dispersibility in water due to the presence of polar oxygen-containing functional groups in its structure. Gamma irradiation at all the applied doses led to the reduction of chloroauric acid and the formation of evenly distributed Au NPs at the GO surface, simultaneously causing the reduction of GO and partial restoration of the graphene structure. As-prepared Au NPs have predominately spheric shapes and the smallest nanoparticles were reported for the dose of 1 kGy. The increase in the irradiation dose caused either the growth of larger particles (5 and 10 kGy) or the broad distribution of pa...rticles’ sizes (20 kGy). All samples showed a temperature increase upon exposure to 800 nm laser and photothermal efficiency was the highest for the sample prepared at 20 kGy.
Ključne reči:
Gamma irradiation / Gold nanoparticles / Graphene oxide / One-step synthesis / Photothermal propertiesIzvor:
Radiation Physics and Chemistry, 2023, 202, 110545-Finansiranje / projekti:
- PHOTOGUN4MICROBES - Are photoactive nanoparticles salvation for global infectional treath? (RS-ScienceFundRS-Ideje-7741955)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200017 (Univerzitet u Beogradu, Institut za nuklearne nauke Vinča, Beograd-Vinča) (RS-MESTD-inst-2020-200017)
URI
https://www.sciencedirect.com/science/article/pii/S0969806X22005813http://aspace.agrif.bg.ac.rs/handle/123456789/6176
Institucija/grupa
Poljoprivredni fakultetTY - JOUR AU - Kepić, Dejan P. AU - Stefanović, Andjela M. AU - Budimir, Milica D. AU - Pavlović, Vladimir B. AU - Bonasera, Aurelio AU - Scopelliti, Michelangelo AU - Todorović-Marković, Biljana M. PY - 2023 UR - https://www.sciencedirect.com/science/article/pii/S0969806X22005813 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/6176 AB - Gamma irradiation provides an alternative pathway to conventional gold nanoparticle synthesis because it is simple, fast, and economical. Here, we employed gamma irradiation at low doses (1–20 kGy) to obtain gold nanoparticles (Au NPs) anchored onto graphene oxide (GO) sheets. GO was selected as a suitable platform for the nucleation and growth of Au NPs because of its large surface area and good dispersibility in water due to the presence of polar oxygen-containing functional groups in its structure. Gamma irradiation at all the applied doses led to the reduction of chloroauric acid and the formation of evenly distributed Au NPs at the GO surface, simultaneously causing the reduction of GO and partial restoration of the graphene structure. As-prepared Au NPs have predominately spheric shapes and the smallest nanoparticles were reported for the dose of 1 kGy. The increase in the irradiation dose caused either the growth of larger particles (5 and 10 kGy) or the broad distribution of particles’ sizes (20 kGy). All samples showed a temperature increase upon exposure to 800 nm laser and photothermal efficiency was the highest for the sample prepared at 20 kGy. T2 - Radiation Physics and Chemistry T2 - Radiation Physics and ChemistryRadiation Physics and Chemistry T1 - Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study SP - 110545 VL - 202 DO - 10.1016/j.radphyschem.2022.110545 ER -
@article{ author = "Kepić, Dejan P. and Stefanović, Andjela M. and Budimir, Milica D. and Pavlović, Vladimir B. and Bonasera, Aurelio and Scopelliti, Michelangelo and Todorović-Marković, Biljana M.", year = "2023", abstract = "Gamma irradiation provides an alternative pathway to conventional gold nanoparticle synthesis because it is simple, fast, and economical. Here, we employed gamma irradiation at low doses (1–20 kGy) to obtain gold nanoparticles (Au NPs) anchored onto graphene oxide (GO) sheets. GO was selected as a suitable platform for the nucleation and growth of Au NPs because of its large surface area and good dispersibility in water due to the presence of polar oxygen-containing functional groups in its structure. Gamma irradiation at all the applied doses led to the reduction of chloroauric acid and the formation of evenly distributed Au NPs at the GO surface, simultaneously causing the reduction of GO and partial restoration of the graphene structure. As-prepared Au NPs have predominately spheric shapes and the smallest nanoparticles were reported for the dose of 1 kGy. The increase in the irradiation dose caused either the growth of larger particles (5 and 10 kGy) or the broad distribution of particles’ sizes (20 kGy). All samples showed a temperature increase upon exposure to 800 nm laser and photothermal efficiency was the highest for the sample prepared at 20 kGy.", journal = "Radiation Physics and Chemistry, Radiation Physics and ChemistryRadiation Physics and Chemistry", title = "Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study", pages = "110545", volume = "202", doi = "10.1016/j.radphyschem.2022.110545" }
Kepić, D. P., Stefanović, A. M., Budimir, M. D., Pavlović, V. B., Bonasera, A., Scopelliti, M.,& Todorović-Marković, B. M.. (2023). Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study. in Radiation Physics and Chemistry, 202, 110545. https://doi.org/10.1016/j.radphyschem.2022.110545
Kepić DP, Stefanović AM, Budimir MD, Pavlović VB, Bonasera A, Scopelliti M, Todorović-Marković BM. Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study. in Radiation Physics and Chemistry. 2023;202:110545. doi:10.1016/j.radphyschem.2022.110545 .
Kepić, Dejan P., Stefanović, Andjela M., Budimir, Milica D., Pavlović, Vladimir B., Bonasera, Aurelio, Scopelliti, Michelangelo, Todorović-Marković, Biljana M., "Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study" in Radiation Physics and Chemistry, 202 (2023):110545, https://doi.org/10.1016/j.radphyschem.2022.110545 . .