Methyl-restricted rotor rotation on the stator produces high-efficiency fluorescence emission: a new strategy to achieve aggregation-induced emission

Abstract

At present, we have realized that the aggregation-induced emission (AIE) achieves the purpose of fluorescence enhancement by restricting rotations to reduce intermolecular or intramolecular energy loss.

Optical properties of photodynamic therapy drugs in different environments: the paradigmatic case of temoporfin

“…Indeed, the restricted intramolecular rotation has been recognized as a cause of the fluorescence enhancement in different organic luminophores. 96,97 As it is the case for diverse fluorophores, [98][99][100] the aggregation of chromophores, and hence the formation of dark excitonic states, could also be considered as a supplementary phenomenon leading to fluorescence quenching in solution. The experimental absorption spectra of mTHPC are reported in Fig.…”

Optical Properties of Photodynamic Therapy Drugs in Different Environments: The Paradigmatic Case of Temoporfin

“…Indeed, the restricted intramolecular rotation has been recognized as a cause of the fluorescence enhancement in different organic luminophores. 96,97 As it is the case for diverse fluorophores, [98][99][100] the aggregation of chromophores, and hence the formation of dark excitonic states, could also be considered as a supplementary phenomenon leading to fluorescence quenching in solution. The experimental absorption spectra of mTHPC are reported in Figure 3, and unsurprisingly present all the features of chlorinbased chromophores.…”