Polymeric nanoparticles are versatile scaffolds to develop smart multichromophoric systems whose collective optical properties can be tuned in view of a specific application. Addition of water (nonsolvent) to diluted THF solutions of a blue emitting π-stacked polymer and a yellow emitting dye induces nanoparticle polymer/dye coaggregation. At 70% water content, concomitantly to nanoparticle shrinking, the emission efficiency increases and the color switches from blue to yellow. Time-resolved fluorescence analysis demonstrates that the switch in the nanoparticle emission is governed by an aggregation-induced Förster resonance energy transfer (FRET) process from the polymer to the molecularly embedded dye activated at a local concentration of about 10<sup>-2</sup> M within the nanoparticles.
Villafiorita-Monteleone, F., Cappelli, A., Paolino, M., Colombo, M., Cariati, E., Mura, A., et al. (2015). Aggregation-Induced Förster Resonance Energy Transfer in Polybenzofulvene/Dye Nanoparticles. JOURNAL OF PHYSICAL CHEMISTRY. C, 119(33), 18986-18991 [10.1021/acs.jpcc.5b05589].
Citazione: | Villafiorita-Monteleone, F., Cappelli, A., Paolino, M., Colombo, M., Cariati, E., Mura, A., et al. (2015). Aggregation-Induced Förster Resonance Energy Transfer in Polybenzofulvene/Dye Nanoparticles. JOURNAL OF PHYSICAL CHEMISTRY. C, 119(33), 18986-18991 [10.1021/acs.jpcc.5b05589]. | |
Tipo: | Articolo in rivista - Articolo scientifico | |
Carattere della pubblicazione: | Scientifica | |
Presenza di un coautore afferente ad Istituzioni straniere: | No | |
Titolo: | Aggregation-Induced Förster Resonance Energy Transfer in Polybenzofulvene/Dye Nanoparticles | |
Autori: | Villafiorita-Monteleone, F; Cappelli, A; Paolino, M; Colombo, M; Cariati, E; Mura, A; Bongiovanni, G; Botta, C | |
Autori: | ||
Data di pubblicazione: | 2015 | |
Lingua: | English | |
Rivista: | JOURNAL OF PHYSICAL CHEMISTRY. C | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1021/acs.jpcc.5b05589 | |
Appare nelle tipologie: | 01 - Articolo su rivista |