A water-soluble ribosyl-based fluorescent sensor for Hg2+ and Cu2+ ions

被引：45

作者：

Chen, Yi-Bin ^{[2
]}

Wang, Yan-Jhang ^{[2
]}

Lin, Yi-Jen ^{[2
]}

Hu, Ching-Han ^{[2
]}

Chen, Shau-Jiun ^{[2
]}

Chir, Jiun-Ly ^{[1
]}

Wu, An-Tai ^{[2
]}

机构：

[1] Acad Sinica, Biotechnol Ctr So Taiwan, Tainan 744, Taiwan

[2] Natl Changhua Univ Educ, Dept Chem, Changhua 50058, Taiwan

来源：

CARBOHYDRATE RESEARCH | 2010年 / 345卷 / 07期

关键词：

Fluorescent sensor; Anthracene; Triazole ring; Water-soluble; SELECTIVE RECOGNITION; DERIVATIVES; SUGAR; FLUOROIONOPHORE; LIGAND; CU(II);

D O I：

10.1016/j.carres.2010.02.003

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A water-soluble ribosyl-based fluorescent sensor 5 was prepared. The sensor contains an anthracene as the fluorophore and a set of complex groups as recognition sites, which bears two triazole ring spacers linked to two ribosyl carboxylic acids groups. The association constants of 5 in water are 2.15 x 10(5) M-1 and 9.57 x 10(4) M-1 for Cu2+ and Hg2+ ions, respectively, and both metals formed complexes with 5 at a 1:1 metal to ligand ratio. The binding of 5 to Cu2+ shows a broad pH range (5-10) and a low detection limit (57 ppb) in water, thus indicating it an efficient and promising cation probe. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：956 / 959

页数：4

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