Temperature Response of Rhodamine B-Doped Latex Particles. From Solution to Single Particles
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- 作者：Antonin Soleilhac ; Marion Girod ; Philippe Dugourd ; Béatrice Burdin ; Julien Parvole ; Pierre-Yves Dugas ; François Bayard ; Emmanuel Lacôte ; Elodie Bourgeat-Lami ; Rodolphe Antoine
- 刊名：Langmuir
- 出版年：2016
- 出版时间：April 26, 2016
- 年：2016
- 卷：32
- 期：16
- 页码：4052-4058
- 全文大小：353K
- 年卷期：0
- ISSN：1520-5827
文摘
Nanoparticle-based temperature imaging is an emerging field of advanced applications. Herein, the sensitivity of the fluorescence of rhodamine B-doped latex nanoparticles toward temperature is described. Submicrometer size latex particles were prepared by a surfactant-free emulsion polymerization method that allowed a simple and inexpensive way to incorporate rhodamine B into the nanoparticles. Also, rhodamine B-coated latex nanoparticles dispersed in water were prepared in order to address the effect of the dye location in the nanoparticles on their temperature dependence. A better linearity of the temperature dependence emission of the rhodamine B-embedded latex particles, as compared to that of free rhodamine B dyes or rhodamine B-coated latex particles, is observed. Temperature-dependent fluorescence measurements by fluorescent confocal microscopy on individual rhodamine B-embedded latex particles were found similar to those obtained for fluorescent latex nanoparticles in solution, indicating that these nanoparticles could be good candidates to probe thermal processes as nanothermometers.