A DS2-specific flavonoid-based probe with a unique dual-emissive response to human serum albumin
作者:Yingying Huang、Taoyuze Lv、Tianyi Qin、Zhongyong Xu、Lei Wang、Bin Liu
DOI:10.1039/d0cc04359a
日期:——
The hydroxyl substituent in flavonoids can cause the binding site to change from DS1 to DS2 and restore the ESIPT process of flavonoids, thereby leading to a unique dual-emissive response towards human serum albumin.
A Novel Colorimetric and Fluorescent Anion Chemosensor Based on the Flavone Quasi-crown Ether−Metal Complex
作者:Li-Li Zhou、Hao Sun、Hua-Ping Li、Hui Wang、Xiao-Hong Zhang、Shi-Kang Wu、Shuit-Tong Lee
DOI:10.1021/ol035818e
日期:2004.4.1
The metal-ligand complex 1 ([Mg (L)] (2+)) (or 2 ([Ca (L)] (2+))) was demonstrated to selectively bind HSO4- (or H2PO4-) over other anions by using UV-vis absorption and fluorescence spectroscopy. The studied complex exhibits the remarkable color change and fluorescence quenching upon introducing HSO4- (or H2PO4-) anion in acetonitrile. Both the mechanism and structure of the secondary complex of complex 1 with anion were proposed on the basis of theoretical computation.