Colorimetric Detection of Mercury(II) Ion Using Unmodified Silver Nanoparticles and Mercury-Specific Oligonucleotides

被引：202
作者：
Wang, Yong [1 ,2 ]
Yang, Fan [1 ]
Yang, Xiurong [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 02期
基金：
中国国家自然科学基金;
关键词：
mercury(II) ion; mercury-specific oligonucleotides; unmodified silver nanoparticles; thymine-Hg2+-thymine coordination; colorimetry; GOLD NANOPARTICLES; DNA OLIGONUCLEOTIDES; BASE-PAIRS; HG-II; HYBRIDS;
D O I：
10.1021/am9007243
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A sensitive and selective colorimetric detection method for mercury(II) has been well-estabilished in this paper. It was based on the conformation change of mercury-specific oligonucleotides (MSO) from random coil structure to hairpin structure upon the addition of Hg2+ and the phenomenon of salt-induced unmodified silver nanoparticles (AgNPs) aggregation. The calibration curve showed that the net absorption ratio value at 395 and 570 nm increased linearly over the Hg2+ concentration range of 25-500 nM with a limit of detection of 17 nM. The other environmentally relevant metal ions did not interfere with the determination of Hg2+.
引用
收藏
页码：339 / 342
页数：4
相关论文
共 28 条
[1]   Interaction of DNA bases with silver nanoparticles: Assembly quantified through SPRS and SERS [J].
Basu, Soumen ;
Jana, Subhra ;
Pande, Surojit ;
Pal, Tarasankar .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2008, 321 (02) :288-293
[2]   Colorimetric determination of urinary adenosine using aptamer-modified gold nanoparticles [J].
Chen, Shih-Ju ;
Huang, Yu-Fen ;
Huang, Chih-Ching ;
Lee, Kun-Hong ;
Lin, Zong-Hong ;
Chang, Huan-Tsung .
BIOSENSORS & BIOELECTRONICS, 2008, 23 (11) :1749-1753
[3]   Azo dyes based on 8-hydroxyquinoline benzoates:: Synthesis and application as colorimetric Hg2+-selective chemosensors [J].
Cheng, Yunfei ;
Zhang, Meng ;
Yang, Hong ;
Li, Fuyou ;
Yi, Tao ;
Huang, Chunhui .
DYES AND PIGMENTS, 2008, 76 (03) :775-783
[4]   Use of optical biosensors for the study of mechanistically concerted surface adsorption processes [J].
Hall, D .
ANALYTICAL BIOCHEMISTRY, 2001, 288 (02) :109-125
[5]   Aptamer-modified gold nanoparticles for colorimetric determination of platelet-derived growth factors and their receptors [J].
Huang, CC ;
Huang, YF ;
Cao, ZH ;
Tan, WH ;
Chang, HT .
ANALYTICAL CHEMISTRY, 2005, 77 (17) :5735-5741
[6]   Colorimetric Detection of DNA Using Unmodified Metallic Nanoparticles and Peptide Nucleic Acid Probes [J].
Kanjanawarut, Roejarek ;
Su, Xiaodi .
ANALYTICAL CHEMISTRY, 2009, 81 (15) :6122-6129
[7]   DNA based gold nanoparticles colorimetric sensors for sensitive and selective detection of Ag(I) ions [J].
Li, Bingling ;
Du, Yan ;
Dong, Shaojun .
ANALYTICA CHIMICA ACTA, 2009, 644 (1-2) :78-82
[8]   Optical analysis of Hg2+ ions by oligonucleotide-gold-nanoparticle hybrids and DNA-based machines [J].
Li, Di ;
Wieckowska, Agnieszka ;
Willner, Itamar .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (21) :3927-3931
[9]   Colorimetric detection of DNA sequences based on electrostatic interactions with unmodified gold nanoparticles [J].
Li, HX ;
Rothberg, L .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2004, 101 (39) :14036-14039
[10]   Label-free aptamer-based colorimetric detection of mercury ions in aqueous media using unmodified gold nanoparticles as colorimetric probe [J].
Li, Li ;
Li, Baoxin ;
Qi, Yingying ;
Jin, Yan .
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2009, 393 (08) :2051-2057
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