Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy
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2015
Authors
Jovanović, Svetlana P.Syrgiannis, Zois
Marković, Zoran M.
Bonasera, Aurelio
Kepić, Dejan P.
Budimir, Milica D.
Milivojević, Dušan D.
Spasojević, Vuk D.
Dramicanin, Miroslav D.
Pavlović, Vladimir
Todorović-Marković, Biljana
Article (Published version)
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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.
Keywords:
graphene quantum dots / gamma irradiation / photoluminescence / quantum yield / photodynamic therapySource:
ACS Applied Materials & Interfaces, 2015, 7, 46, 25865-25874Publisher:
- Amer Chemical Soc, Washington
Funding / projects:
- Thin films of single wall carbon nanotubes and graphene for electronic application (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
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Poljoprivredni fakultetTY - JOUR AU - Jovanović, Svetlana P. AU - Syrgiannis, Zois AU - Marković, Zoran M. AU - Bonasera, Aurelio AU - Kepić, Dejan P. AU - Budimir, Milica D. AU - Milivojević, Dušan D. AU - Spasojević, Vuk D. AU - Dramicanin, Miroslav D. AU - Pavlović, Vladimir AU - Todorović-Marković, Biljana PY - 2015 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/3755 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 - Amer Chemical Soc, Washington T2 - ACS Applied Materials & Interfaces T1 - Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy EP - 25874 IS - 46 SP - 25865 VL - 7 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 D. and Milivojević, Dušan D. and Spasojević, Vuk D. and Dramicanin, Miroslav D. and Pavlović, Vladimir 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 = "Amer Chemical Soc, Washington", journal = "ACS Applied Materials & Interfaces", title = "Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy", pages = "25874-25865", number = "46", volume = "7", doi = "10.1021/acsami.5b08226" }
Jovanović, S. P., Syrgiannis, Z., Marković, Z. M., Bonasera, A., Kepić, D. P., Budimir, M. D., Milivojević, D. D., Spasojević, V. D., Dramicanin, M. D., Pavlović, V.,& 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 & Interfaces Amer Chemical Soc, Washington., 7(46), 25865-25874. https://doi.org/10.1021/acsami.5b08226
Jovanović SP, Syrgiannis Z, Marković ZM, Bonasera A, Kepić DP, Budimir MD, Milivojević DD, Spasojević VD, Dramicanin MD, Pavlović V, 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 & 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 D., Milivojević, Dušan D., Spasojević, Vuk D., Dramicanin, Miroslav D., Pavlović, Vladimir, 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 & Interfaces, 7, no. 46 (2015):25865-25874, https://doi.org/10.1021/acsami.5b08226 . .