Author, as appears in the article.: Carvajal, J. ; Savchuk, O. ; Masons, J. ; Aguiló, M. ; Díaz, F.

Department: Química Física i Inorgànica

URV's Author/s: CARVAJAL MARTÍ, JOAN JOSEP; Savchuk, O. ; MASONS BOSCH, JAIME; AGUILÓ DÍAZ, MAGDALENA; DÍAZ GONZÁLEZ, FRANCISCO MANUEL

Keywords: graphene graphene oxide

Abstract: We report a new method for the determination of photothermal conversio nefficiency of photothermal agents, based on the use of an integrating sphere. We validated this method by comparing the photothermal conversion efficiency of Au nanorods calculated by this method and by the more conventional time constant method. Then, we applied this method to determine the photothermal conversion efficiency of graphene and graphene oxide nanosheets dispersions in dimethylformamide and water, respectively, finding out that they are excellent photothermal agents with photothermal conversion efficiencies among the highest reported up to now. We also analyzed the influence of the concentration of the materials, and the wavelength and power of irradiation in the temperature increase that can be achieved with them, finding out that they can be used, for instance, in cancer treatment through hyperthermia procedures with reduced costs when compared to other photothermal agents.

Research group: Física i Cristal.lografia de Materials Física i Cristal·lografia de Nanomaterials

Thematic Areas: Química Química Chemistry

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 0008-6223

Author identifier: 0000-0002-4389-7298; ; 0000-0003-4325-6084; 0000-0001-6130-9579; 0000-0003-4581-4967

Record's date: 2018-09-26

Last page: 141

Journal volume: 103

Papper version: info:eu-repo/semantics/submittedVersion

Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0008622316301683

Funding program: plan; Retos; MAT2013-47395-C4-4-R plan; Retos; TEC2014-55948-R altres; Grupos consolidados; 2014SGR13582 altres; Agaur; 2015FI_B2 00136 altres; Icrea Academia; 2010ICREA-02

Article's DOI: 10.1016/j.carbon.2016.02.075

Entity: Universitat Rovira i Virgili

Journal publication year: 2016

First page: 134

Publication Type: Article Artículo Article