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Fluorescence emission modulation in singlefluoroforic submicro-sized silica particles |
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| Authors: | Umberto A. Kober Márcia R. Gallas Leandra F. Campo Fabiano S. Rodembusch Valter Stefani |
| Affiliation: | 1.Laboratório de Novos Materiais Organicos, Instituto de Química,Universidade Federal do Rio Grande do Sul,Porto Alegre,Brazil;2.Laboratório de Altas Press?es e Materiais Avan?ados, Instituto de Física,Universidade Federal do Rio Grande do Sul,Porto Alegre,Brazil |
| Abstract: | A new class of singlefluoforic submicro-sized spherical silica particles based on an ESIPT-exhibiting dye is presented in this work. The particles are able to generate a modulated response in the blue–green region varying the incident excitation wavelength. The submicro silica particles present monodisperse size distribution with a size range of 0.9–0.95 μm. The morphology and homogeneity combined with the observed fluorescence emission modulation and the absence of energy transfer between the fluorescent dyes open up new perspectives in the application of these fluorescent particles in the field of optical sensors and devices. |
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