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.
Damiano Genovese, Sara Bonacchi, Riccardo Juris, Marco Montalti, Luca Prodi, Enrico Rampazzo, et al. (2013). Prevention of Self-Quenching in Fluorescent Silica Nanoparticles by Efficient Energy Transfer. ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, 52, 5965-5968 [10.1002/anie.201301155].
Prevention of Self-Quenching in Fluorescent Silica Nanoparticles by Efficient Energy Transfer
GENOVESE, DAMIANO;BONACCHI, SARA;MONTALTI, MARCO;PRODI, LUCA;RAMPAZZO, ENRICO;ZACCHERONI, NELSI
2013
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
