Autor segons l'article: Savchuk, Oleksandr A; Carvajal, Joan J; Cesteros, Yolanda; Salagre, Pilar; Huu Dat Nguyen; Rodenas, Airan; Massons, Jaume; Aguilo, Magdalena; Diaz, Franscesc
Departament: Química Física i Inorgànica
Autor/s de la URV: Aguiló Díaz, Magdalena / Carvajal Martí, Joan Josep / Cesteros Fernández, Yolanda / Díaz González, Francisco Manuel / Masons Bosch, Jaime / RODENAS SEGUI, AIRAN / Salagre Carnero, María Pilar
Paraules clau: Upconversion nanoparticles Thermal mapping Nanothermometry Green synthesis Graphene thermal mapping nanothermometry green synthesis graphene
Resum: © 2019 Savchuk, Carvajal, Cesteros, Salagre, Nguyen, Rodenas, Massons, Aguiló and Díaz. This study analyzes the mapping of temperature distribution generated by graphene in a glass slide cover after illumination at 808 nm with a good thermal resolution. For this purpose, Er,Yb:NaYF4 nanoparticles prepared by a microwave-assisted solvothermal method were used as upconversion luminescent nanothermometers. By tuning the basic parameters of the synthesis procedure, such as the time and temperature of reaction and the concentration of ethanol and water, we were able to control the size and the crystalline phase of the nanoparticles, and to have the right conditions to obtain 100% of the β hexagonal phase, the most efficient spectroscopically. We observed that the thermal sensitivity that can be achieved with these particles is a function of the size of the nanoparticles and the crystalline phase in which they crystallize. We believe that, with suitable changes, these nanoparticles might be used in the future to map temperature gradients in living cells while maintaining a good thermal resolution.
Àrees temàtiques: Química Medicina ii Medicina i Materiais Interdisciplinar General chemistry Farmacia Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Biotecnología Biodiversidade
ISSN: 22962646
Adreça de correu electrònic de l'autor: joanjosep.carvajal@urv.cat magdalena.aguilo@urv.cat jaume.masons@urv.cat yolanda.cesteros@urv.cat f.diaz@urv.cat
Identificador de l'autor: 0000-0002-4389-7298 0000-0001-6130-9579 0000-0003-4325-6084 0000-0002-5439-9358 0000-0003-4581-4967
Data d'alta del registre: 2024-10-19
Volum de revista: 7
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.frontiersin.org/articles/10.3389/fchem.2019.00088/full
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Frontiers In Chemistry. 7 (FEB): 88-
Referència de l'ítem segons les normes APA: Savchuk, Oleksandr A; Carvajal, Joan J; Cesteros, Yolanda; Salagre, Pilar; Huu Dat Nguyen; Rodenas, Airan; Massons, Jaume; Aguilo, Magdalena; Diaz, Fr (2019). Mapping temperature distribution generated by photothermal conversion in graphene film using Er,Yb:NaYF4 nanoparticles prepared by microwave-assisted solvothermal method. Frontiers In Chemistry, 7(FEB), 88-. DOI: 10.3389/fchem.2019.00088
DOI de l'article: 10.3389/fchem.2019.00088
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2019
Tipus de publicació: Journal Publications