Fluorescent nano-particles for multi-photon thermal sensing

Martinez Maestro, L; Jaque, D; Escudero, E; Martin Rodriguez, E; Capobianco, JA; Vetrone, F; Juarranz de la Fuente, A; Sanz-Rodriguez, F; Iglesias-de la Cruz, MC; Jacinto, C; Rocha, U; Garcia Sole, J

Abstract

In this work we report on the ability of Er/Yb co-doped NaYF4 nano-crystals and CdTe Quantum Dots as two-photon excited fluorescent nano-thermometers. The basic physical phenomena causing the thermal sensitivity of the two-photon excited emission bands have been discussed and the maximum thermal resolution achievable in each case has been estimated. The practical application of both systems for thermal sensing at the micro-scale in biological systems is demonstrated. In particular, they have been used to evaluate the thermal loading induced by tightly focused laser beams in both living cells and fluids.

• Journal Article Type: Article
• Online Publication Date: Dec 13, 2011
• Publication Date: Dec 13, 2011
• Deposit Date: Dec 5, 2019
• Journal: Journal of Luminescence
• Print ISSN: 0022-2313
• Publisher: Elsevier
• Volume: 133
• Pages: 249-253
• DOI: https://doi.org/10.1016/j.jlumin.2011.12.022
• Publisher URL: https://doi.org/10.1016/j.jlumin.2011.12.022
• Related Public URLs: https://www.sciencedirect.com/journal/journal-of-luminescence
• Additional Information: Funders : Universidad Autonoma de Madrid;Comunidad de Madrid;Spanish Ministerio de Educación y Ciencia;Banco Santander CEAL-UAM;Brazilian agencies CAPES CNPq and FAPEAL