An acridinium-based sensor as a fluorescent photoinduced electron transfer probe for proton detection modulated by anionic micelles

作者：Basili Stefano; Del Giacco Tiziana^*; Elisei Fausto; Germani Raimondo

来源：Organic and Biomolecular Chemistry, 2014, 12(34): 6677-6683.

DOI：10.1039/c4ob00559g

A water-soluble fluorescent pH sensor of 9-amino-10-methylacridinium chromophore with the 2-(diethylamine)ethyl chain as a receptor shows an "off-on" response going from basic to acidic solution. Photoinduced electron transfer has been directly demonstrated to be the quenching mechanism by the observation of the long-lived acridinyl radical. The interaction of the protonated sensor with anionic micelles causes a significant increase in the detection sensitivity of pH.

• 出版日期2014
• 单位Perugia