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

被引：198
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
    Basu, Soumen
    Jana, Subhra
    Pande, Surojit
    Pal, Tarasankar
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2008, 321 (02) : 288 - 293
  • [2] Colorimetric determination of urinary adenosine using aptamer-modified gold nanoparticles
    Chen, Shih-Ju
    Huang, Yu-Fen
    Huang, Chih-Ching
    Lee, Kun-Hong
    Lin, Zong-Hong
    Chang, Huan-Tsung
    [J]. BIOSENSORS & BIOELECTRONICS, 2008, 23 (11) : 1749 - 1753
  • [3] Azo dyes based on 8-hydroxyquinoline benzoates:: Synthesis and application as colorimetric Hg2+-selective chemosensors
    Cheng, Yunfei
    Zhang, Meng
    Yang, Hong
    Li, Fuyou
    Yi, Tao
    Huang, Chunhui
    [J]. DYES AND PIGMENTS, 2008, 76 (03) : 775 - 783
  • [4] Use of optical biosensors for the study of mechanistically concerted surface adsorption processes
    Hall, D
    [J]. ANALYTICAL BIOCHEMISTRY, 2001, 288 (02) : 109 - 125
  • [5] Aptamer-modified gold nanoparticles for colorimetric determination of platelet-derived growth factors and their receptors
    Huang, CC
    Huang, YF
    Cao, ZH
    Tan, WH
    Chang, HT
    [J]. ANALYTICAL CHEMISTRY, 2005, 77 (17) : 5735 - 5741
  • [6] Colorimetric Detection of DNA Using Unmodified Metallic Nanoparticles and Peptide Nucleic Acid Probes
    Kanjanawarut, Roejarek
    Su, Xiaodi
    [J]. ANALYTICAL CHEMISTRY, 2009, 81 (15) : 6122 - 6129
  • [7] DNA based gold nanoparticles colorimetric sensors for sensitive and selective detection of Ag(I) ions
    Li, Bingling
    Du, Yan
    Dong, Shaojun
    [J]. ANALYTICA CHIMICA ACTA, 2009, 644 (1-2) : 78 - 82
  • [8] Optical analysis of Hg2+ ions by oligonucleotide-gold-nanoparticle hybrids and DNA-based machines
    Li, Di
    Wieckowska, Agnieszka
    Willner, Itamar
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (21) : 3927 - 3931
  • [9] Colorimetric detection of DNA sequences based on electrostatic interactions with unmodified gold nanoparticles
    Li, HX
    Rothberg, L
    [J]. 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
    Li, Li
    Li, Baoxin
    Qi, Yingying
    Jin, Yan
    [J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2009, 393 (08) : 2051 - 2057
123