期刊
ACS NANO
卷 7, 期 2, 页码 1188-1199出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn304373q
关键词
nanothermometry; hyperthermia fluorescence imaging; fluorescence quantum yield; gold nanorods
类别
资金
- NSERC (the National Science and Engineering Council of Canada)
- Universidad Autortoma de Madrid and Comunidad Autonoma de Madrid [CCG087-UAWMAT-4434, S2009/MAT-1756]
- Spanish Ministerio de Educacion y Ciencia [MAT2010-16161]
- PRONEX/FAPEAL [2009-09-006]
- FINEP (Financiadora de Estudos e Projetos)
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico through Grant INCT NANO(BIO)SIMES)
- CAPES (Coordenadoria de Aperfeicoamento de Pessoal de Ensino Superior) Brazilian Agencies
- CAPES
- PDSE-CAPES program developed in the Universidad Autonoma de Madrid, Spain
- Le Fonds de recherche du Quebec Nature et technologies (FRQNT)
In this work, we report the multifunctional character of neodymium-doped LaF3 core/shell nanopartides. Because of the spectral overlap of the neodymium emission bands with the transparency windows of human tissues, these nanoparticles emerge as relevant subtissue optical probes. For neodymium contents optimizing the luminescence brightness of Nd3+: LaF3 nanoparticles, subtissue penetration depths of several millimeters have been demonstrated. At the same time, it has been found that the infrared emission bands of Nd3+:LaF3 nanoparticles show a remarkable thermal sensitivity, so that they can be advantageously used as luminescent nanothermometers for subtissue thermal sensing. This possibility has been demonstrated in this work: Nd3+: LaF3 nanopartides have been used to provide optical control over subtissue temperature in a single-beam plasmonic-mediated heating experiment. In this experiment, gold nanorods are used as nanoheaters while thermal reading is performed by the Nd3+: LaF3 nanoparticles. The possibility of a real single-beam-controlled subtissue hyperthermia process is, therefore, pointed out.
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