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Ratiometric fluorescent nanoparticles for sensing temperature

Peng, Hong-Shang ; Huang, Shi-Hua ; Wolfbeis, Otto S.
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Date of publication of this fulltext: 18 Mar 2011 06:44


A ratiometric type of fluorescent nanoparticle was prepared via an encapsulation–reprecipitation method. By introducing an alkoxysilanized dye as a reference, the nanoparticles (NPs) give both a green and a red fluorescence under one single-wavelength excitation. The resulted ratiometric fluorescence is found to be highly temperature-dependent in the physiological range (25–45 °C), with an ...


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