Highly Fluorescent Rhodamine B Nanoparticles Entrapped in Hybrid Glasses

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Abstract
Rhodamine B (RB) nanoparticles entrapped in hybrid glasses show enhanced fluorescent emission (∼220-fold larger than that of single RB molecules) thanks to the configuration control of the self-assembled aggregates that form the supramolecular architecture of the nanoparticles. The fluorescence performance reported in this work is around 1 order of magnitude larger than that recently reported for fluorescent Nile Red nanoparticles. The fluorescence enhancement results from the use of a highly efficient fluorescent dye such RB and the formation of larger nanoparticles. Note that the later implies the presence of a large number of emitting centers involved in the fluorescence emission.

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