Titre :

Fluorescence modulation by fast photochromism of a [2.2]paracyclophane-bridged imidazole dimer possessing a perylene bisimide moiety

Auteur(s) :

Mutoh, Katsuya [Auteur]
Aoyama Gakuin University [AGU]
Sliwa, Michel [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Fron, Eduard [Auteur]
Catholic University of Leuven = Katholieke Universiteit Leuven [KU Leuven]
Hofkens, Johan [Auteur]
Catholic University of Leuven = Katholieke Universiteit Leuven [KU Leuven]
Abe, Jiro [Auteur]
Aoyama Gakuin University [AGU]

Titre de la revue :

Journal of Materials Chemistry C

Numéro :

6

Pagination :

9523-9531

Date de publication :

2018

Discipline(s) HAL :

Chimie/Chimie théorique et/ou physique

Résumé en anglais : [en]

The development of single-molecule imaging and super-resolution microscopy techniques has promoted the study of fluorescence switchable molecules that have been important for the in-depth understanding of the activities ...
Lire la suite >The development of single-molecule imaging and super-resolution microscopy techniques has promoted the study of fluorescence switchable molecules that have been important for the in-depth understanding of the activities of organelles and the geometries of materials in the nano- and microscale. The utilization of photochromic compounds as the photo-switching trigger is an efficient strategy to reversibly control the fluorescent “ON” and “OFF” states. In this study, we demonstrated the red-color fluorescence switching of a perylene bisimide (PBI) derivative by using a fast photochromic [2.2]paracyclophane-bridged imidazole dimer. The transient colored biradical species as the fluorescence quencher is generated upon UV light irradiation. Because the biradical species has broad absorption bands in the whole visible light and the near-infrared regions (500–900 nm), the fluorescence of PBI could be efficiently quenched by Förster resonance energy transfer (FRET). The fluorescence intensity was switched by means of fast photochromic cycles within a few tens of milliseconds. The potential capability of the transient biradical species to switch the fluorescence in the visible and NIR regions will open up new possibilities in multicolor fluorescence imaging.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

CNRS
ENSCL
Université de Lille

Collections :

• Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Équipe(s) de recherche :

Dynamics, Nanoscopy & Chemometrics (DyNaChem)

Date de dépôt :

2021-11-16T08:23:30Z
2024-02-21T12:49:02Z