Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study
Само за регистроване кориснике
2023
Аутори
Kepić, Dejan P.Stefanović, Anđela M.
Budimir, Milica
Pavlović, Vladimir B.
Bonasera, Aurelio
Scopelliti, Michelangelo
Todorović-Marković, Biljana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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. © 2022 Elsevier Ltd
Кључне речи:
Gamma irradiation / Gold nanoparticles / Graphene oxide / One-step synthesis / Photothermal propertiesИзвор:
Radiation Physics and Chemistry, 2023, 202Финансирање / пројекти:
- PHOTOGUN4MICROBES - Are photoactive nanoparticles salvation for global infectional treath? (RS-7741955)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-200017)
DOI: 10.1016/j.radphyschem.2022.110545
ISSN: 0969-806X
Scopus: 2-s2.0-85138188911
Институција/група
VinčaTY - JOUR AU - Kepić, Dejan P. AU - Stefanović, Anđela M. AU - Budimir, Milica AU - Pavlović, Vladimir B. AU - Bonasera, Aurelio AU - Scopelliti, Michelangelo AU - Todorović-Marković, Biljana PY - 2023 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10426 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. © 2022 Elsevier Ltd T2 - Radiation Physics and Chemistry T1 - Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study VL - 202 DO - 10.1016/j.radphyschem.2022.110545 ER -
@article{ author = "Kepić, Dejan P. and Stefanović, Anđela M. and Budimir, Milica and Pavlović, Vladimir B. and Bonasera, Aurelio and Scopelliti, Michelangelo and Todorović-Marković, Biljana", 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. © 2022 Elsevier Ltd", journal = "Radiation Physics and Chemistry", title = "Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study", volume = "202", doi = "10.1016/j.radphyschem.2022.110545" }
Kepić, D. P., Stefanović, A. M., Budimir, M., Pavlović, V. B., Bonasera, A., Scopelliti, M.,& Todorović-Marković, B.. (2023). Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study. in Radiation Physics and Chemistry, 202. https://doi.org/10.1016/j.radphyschem.2022.110545
Kepić DP, Stefanović AM, Budimir M, Pavlović VB, Bonasera A, Scopelliti M, Todorović-Marković B. Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study. in Radiation Physics and Chemistry. 2023;202. doi:10.1016/j.radphyschem.2022.110545 .
Kepić, Dejan P., Stefanović, Anđela M., Budimir, Milica, Pavlović, Vladimir B., Bonasera, Aurelio, Scopelliti, Michelangelo, Todorović-Marković, Biljana, "Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study" in Radiation Physics and Chemistry, 202 (2023), https://doi.org/10.1016/j.radphyschem.2022.110545 . .