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Energy transfer processes in dye-doped nanostructures yield cooperative and versatile fluorescent probes
Ist Teil von
Nanoscale, 2014-03, Vol.6 (6), p.322-336
Ort / Verlag
England
Erscheinungsjahr
2014
Quelle
MEDLINE
Beschreibungen/Notizen
Fast and efficient energy transfer among dyes confined in nanocontainers provides the basis of outstanding functionalities in new-generation luminescent probes. This feature article provides an overview of recent research achievements on luminescent Pluronic-Silica NanoParticles (PluS NPs), a class of extremely monodisperse core-shell nanoparticles whose design can be easily tuned to match specific needs for diverse applications based on luminescence, and that have already been successfully tested in
in vivo
imaging. An outline of their outstanding properties, such as tuneability, bright and photoswitchable fluorescence and electrochemiluminescence, will be supported by a critical discussion of our recent works in this field. Furthermore, novel data and simulations will be presented to (i) thoroughly examine common issues arising from the inclusion of multiple dyes in a small silica core, and (ii) show the emergence of a cooperative behaviour among embedded dyes. Such cooperative behaviour provides a handle for fine control of brightness, emission colour and self-quenching phenomena in PluS NPs, leading to significantly enhanced signal to noise ratios.
Cooperative behaviour in dye-doped nanostructures is obtained through fast energy transfer among dyes, yielding outstanding functionalities for new-generation luminescent probes.