Oligonucleotide-stabilized silver nanoclusters as fluorescent probes for sensitive detection of hydroquinone

被引：28

作者：

Guo, Xiaoqian ^{[1
]}

Deng, Liu ^{[1
]}

Wang, Jianxiu ^{[1
]}

机构：

[1] Cent S Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Resources Chem Nonferrous Met, Changsha 410083, Hunan, Peoples R China

来源：

RSC ADVANCES | 2013年 / 3卷 / 02期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

PHENOLIC-COMPOUNDS; WATER SAMPLES; WASTE-WATER;

D O I：

10.1039/c2ra21615a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, a simple strategy for the sensitive detection of hydroquinone (H(2)Q) using fluorescent silver nanoclusters (AgNCs) has been developed. In the presence of H2O2 and peroxidase, the fluorescence of AgNCs was quenched efficiently by phenolic compounds. The mechanism inherent in the fluorescence quenching could be mainly ascribed to the formation of the quinone intermediates via enzyme-catalyzed oxidation of phenolic compounds. Combined with the high specificity of the enzyme, the method could determine phenolic compounds with a linear relationship ranging from 8.0 x 10(-8) to 3.2 x 10(-6) mol L-1 and a detection limit of 10(-8) mol L-1. In the case of phenols, the presented sensor may serve as a comparative empirical method for the evaluation of contamination.

引用

页码：401 / 407

页数：7

共 49 条

[1] Chitosan-based tyrosinase optical phenol biosensor employing hybrid nafion/sol-gel silicate for MBTH immobilization [J].

Abdullah, Jaafar ;

Ahmad, Musa ;

Heng, Lee Yook ;

Karuppiah, Nadarajah ;

Sidek, Hamidah .

TALANTA, 2006, 70 (03) :527-532

[2] Facile Synthesis of Water-Soluble Fluorescent Silver Nanoclusters and HgII Sensing [J].

Adhikari, Bimalendu ;

Banerjee, Arindam .

CHEMISTRY OF MATERIALS, 2010, 22 (15) :4364-4371

[3] The excited states quenching of phenothiazine dyes by p-benzoquinones in polar solvents [J].

Bertolotti, SG ;

Previtali, CM .

DYES AND PIGMENTS, 1999, 41 (1-2) :55-61

[4] Electron shuttling across the interface of CdSe nanoparticles monitored by femtosecond laser spectroscopy [J].

Burda, C ;

Green, TC ;

Link, S ;

El-Sayed, MA .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (11) :1783-1788

[5] Fluorescent silver nanoclusters in hybridized DNA duplexes for the turn-on detection of Hg2+ ions [J].

Deng, Liu ;

Zhou, Zhixue ;

Li, Jing ;

Li, Tao ;

Dong, Shaojun .

CHEMICAL COMMUNICATIONS, 2011, 47 (39) :11065-11067

[6] High-throughput single-cell analysis for enzyme activity without cytolysis [J].

Gao, Ning ;

Wang, Wenlei ;

Zhang, Xiaoli ;

Jin, Wenrui ;

Yin, Xuefeng ;

Fang, Zhaolun .

ANALYTICAL CHEMISTRY, 2006, 78 (09) :3213-3220

[7] Oxidative catalysts for the transformation of phenolic pollutants: a brief review [J].

Gianfreda, Liliana ;

Iamarino, Giuseppina ;

Scelza, Rosalia ;

Rao, Maria A. .

BIOCATALYSIS AND BIOTRANSFORMATION, 2006, 24 (03) :177-187

[8] QUANTITATIVE DETERMINATION OF PHENOLIC FUNGICIDES [J].

GOTTLIEB, S ;

MARSH, PB .

INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1946, 18 (01) :16-19

[9] Highly Sequence-Dependent Formation of Fluorescent Silver Nanoclusters in Hybridized DNA Duplexes for Single Nucleotide Mutation Identification [J].

Guo, Weiwei ;

Yuan, Jipei ;

Dong, Qingzhe ;

Wang, Erkang .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (03) :932-+

[10] Oligonucleotide-stabilized Ag nanoclusters as novel fluorescence probes for the highly selective and sensitive detection of the Hg2+ ion [J].

Guo, Weiwei ;

Yuan, Jipei ;

Wang, Erkang .

CHEMICAL COMMUNICATIONS, 2009, (23) :3395-3397

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