base-discriminating fluorescent nucleobases;
mercury ion;
fluorescence;
base pair;
D O I:
10.1016/j.bmcl.2005.06.049
中图分类号:
R914 [药物化学];
学科分类号:
100701 ;
摘要:
We altered the fluorescence emission selectivity of a base-discriminating fluorescent base, U-Py, from A-selective to T-selective by the addition of mercury ion. The strong fluorescence from a duplex containing the U-Py/T base pair was specific to the mercury ion among divalent metal ions, providing a unique method for sensing mercury ions in aqueous solutions. (c) 2005 Elsevier Ltd. All rights reserved.