Convenient and highly effective fluorescence sensing for Hg2+ in aqueous solution and thin film
作者:Yu Liu、Miao Yu、Yong Chen、Ning Zhang
DOI:10.1016/j.bmc.2009.04.018
日期:2009.6
A quinolinocyclodextrin, that is, MQAS-beta-cyclodextrin (MQAS = N-(2-methyl-8-amino-quinolyl)-p-aminobenzene sulfonamide) was synthesized. Further experiments showed that it could form very stable stoichiometric 2:1 complex with Zn2+ in water. Significantly, the resultant quinolinocyclodextrin/Zn2+ complex showed the specific fluorescence response to Hg2+ over other metal ions, which could be readily distinguished in either aqueous solution or the PVA-based thin film. This finding would enable Zn center dot 3(2) complex as a convenient and highly efficient fluorescence sensor for the detection of Hg2+. (E) 2009 Elsevier Ltd. All rights reserved.
Synthesis, Molecular Structure, Anticancer Activity, and QSAR Study of N-(aryl/heteroaryl)-4-(1H-pyrrol-1-yl)Benzenesulfonamide Derivatives
activity, and increased the population of apoptotic cells. Relationships between structure and biological activity were determined by the QSAR (quantitative structure activity relationships) method. Analysis of quantitative structure activity relationships allowed us to generate OPLS (Orthogonal Projections to Latent Structure) models with verified predictive ability that point out key molecular descriptors