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Prevention of Self‐Quenching in Fluorescent Silica Nanoparticles by Efficient Energy Transfer
Author(s) -
Genovese Damiano,
Bonacchi Sara,
Juris Riccardo,
Montalti Marco,
Prodi Luca,
Rampazzo Enrico,
Zaccheroni Nelsi
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201301155
Subject(s) - förster resonance energy transfer , quenching (fluorescence) , fluorescence , nanoparticle , acceptor , materials science , energy transfer , photochemistry , doping , nanotechnology , core (optical fiber) , optoelectronics , chemical physics , optics , chemistry , physics , condensed matter physics , composite material
Stars that shine bright : A high local dye concentration in doped silica‐based core–shell nanoparticles causes self‐quenching and spectral broadening (top images). This phenomenon jeopardizes the potential advantages of heavily doped systems. Förster resonance energy transfer (FRET) to an acceptor co‐included in the silica led to ultrabright nanoparticles (bottom images) with a preselected narrow‐band emission and a pseudo‐Stokes shift of 129 nm.