Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy
Само за регистроване кориснике
2015
Аутори
Jovanović, Svetlana P.Syrgiannis, Zois
Marković, Zoran M.
Bonasera, Aurelio
Kepić, Dejan P.
Budimir, Milica
Milivojević, Dušan
Spasojević, Vuk D.
Dramićanin, Miroslav
Pavlović, Vladimir B.
Todorović-Marković, Biljana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Herein, the ability of gamma irradiation to enhance the photoluminescence properties of graphene quantum dots (GQDs) was investigated. Different doses of gamma-irradiation were used on GQDs to examine the way in which their structure and optical properties can be affected. The photoluminescence quantum yield was increased six times for the GQDs irradiated with high doses compared to the nonirradiated material. Both photoluminescence lifetime and values of optical band gap were increased with the dose of applied gamma irradiation. In addition, the exploitation of the gamma-irradiated GQDs as photosensitizers was examined by monitoring the production of singlet oxygen under UV illumination. The main outcome was that the GQDs irradiated at lower doses act as better photoproducers than the ones irradiated at higher doses. These results corroborate that the structural changes caused by gamma irradiation have a direct impact on GQD ability to produce singlet oxygen and their photostability u...nder prolonged UV illumination. This makes low-dose irradiated GQDs promising candidates for photodynamic therapy.
Кључне речи:
graphene quantum dots / gamma irradiation / photoluminescence / quantum yield / photodynamic therapyИзвор:
ACS Applied Materials and Interfaces, 2015, 7, 46, 25865-25874Издавач:
- American Chemical Society
Финансирање / пројекти:
- Танки слојеви једнослојних угљеничних нанотуба и графена за примену у електроници (RS-MESTD-Basic Research (BR or ON)-172003)
DOI: 10.1021/acsami.5b08226
ISSN: 1944-8244
PubMed: 26540316
WoS: 000366005600040
Scopus: 2-s2.0-84948682203
Колекције
Институција/група
VinčaTY - JOUR AU - Jovanović, Svetlana P. AU - Syrgiannis, Zois AU - Marković, Zoran M. AU - Bonasera, Aurelio AU - Kepić, Dejan P. AU - Budimir, Milica AU - Milivojević, Dušan AU - Spasojević, Vuk D. AU - Dramićanin, Miroslav AU - Pavlović, Vladimir B. AU - Todorović-Marković, Biljana PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/839 AB - Herein, the ability of gamma irradiation to enhance the photoluminescence properties of graphene quantum dots (GQDs) was investigated. Different doses of gamma-irradiation were used on GQDs to examine the way in which their structure and optical properties can be affected. The photoluminescence quantum yield was increased six times for the GQDs irradiated with high doses compared to the nonirradiated material. Both photoluminescence lifetime and values of optical band gap were increased with the dose of applied gamma irradiation. In addition, the exploitation of the gamma-irradiated GQDs as photosensitizers was examined by monitoring the production of singlet oxygen under UV illumination. The main outcome was that the GQDs irradiated at lower doses act as better photoproducers than the ones irradiated at higher doses. These results corroborate that the structural changes caused by gamma irradiation have a direct impact on GQD ability to produce singlet oxygen and their photostability under prolonged UV illumination. This makes low-dose irradiated GQDs promising candidates for photodynamic therapy. PB - American Chemical Society T2 - ACS Applied Materials and Interfaces T1 - Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy VL - 7 IS - 46 SP - 25865 EP - 25874 DO - 10.1021/acsami.5b08226 ER -
@article{ author = "Jovanović, Svetlana P. and Syrgiannis, Zois and Marković, Zoran M. and Bonasera, Aurelio and Kepić, Dejan P. and Budimir, Milica and Milivojević, Dušan and Spasojević, Vuk D. and Dramićanin, Miroslav and Pavlović, Vladimir B. and Todorović-Marković, Biljana", year = "2015", abstract = "Herein, the ability of gamma irradiation to enhance the photoluminescence properties of graphene quantum dots (GQDs) was investigated. Different doses of gamma-irradiation were used on GQDs to examine the way in which their structure and optical properties can be affected. The photoluminescence quantum yield was increased six times for the GQDs irradiated with high doses compared to the nonirradiated material. Both photoluminescence lifetime and values of optical band gap were increased with the dose of applied gamma irradiation. In addition, the exploitation of the gamma-irradiated GQDs as photosensitizers was examined by monitoring the production of singlet oxygen under UV illumination. The main outcome was that the GQDs irradiated at lower doses act as better photoproducers than the ones irradiated at higher doses. These results corroborate that the structural changes caused by gamma irradiation have a direct impact on GQD ability to produce singlet oxygen and their photostability under prolonged UV illumination. This makes low-dose irradiated GQDs promising candidates for photodynamic therapy.", publisher = "American Chemical Society", journal = "ACS Applied Materials and Interfaces", title = "Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy", volume = "7", number = "46", pages = "25865-25874", doi = "10.1021/acsami.5b08226" }
Jovanović, S. P., Syrgiannis, Z., Marković, Z. M., Bonasera, A., Kepić, D. P., Budimir, M., Milivojević, D., Spasojević, V. D., Dramićanin, M., Pavlović, V. B.,& Todorović-Marković, B.. (2015). Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy. in ACS Applied Materials and Interfaces American Chemical Society., 7(46), 25865-25874. https://doi.org/10.1021/acsami.5b08226
Jovanović SP, Syrgiannis Z, Marković ZM, Bonasera A, Kepić DP, Budimir M, Milivojević D, Spasojević VD, Dramićanin M, Pavlović VB, Todorović-Marković B. Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy. in ACS Applied Materials and Interfaces. 2015;7(46):25865-25874. doi:10.1021/acsami.5b08226 .
Jovanović, Svetlana P., Syrgiannis, Zois, Marković, Zoran M., Bonasera, Aurelio, Kepić, Dejan P., Budimir, Milica, Milivojević, Dušan, Spasojević, Vuk D., Dramićanin, Miroslav, Pavlović, Vladimir B., Todorović-Marković, Biljana, "Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy" in ACS Applied Materials and Interfaces, 7, no. 46 (2015):25865-25874, https://doi.org/10.1021/acsami.5b08226 . .