N-1-(2-Mercaptoethyl)thymine modification of gold nanoparticles: a highly selective and sensitive colorimetric chemosensor for Hg(2+) | |
Chen, L1,3; Lou, TT1,3; Yu, CW1,3; Kang, Q2; Chen, LX1![]() | |
发表期刊 | ANALYST
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ISSN | 0003-2654 |
2011 | |
卷号 | 136期号:22页码:4770-4773 |
关键词 | Plasmon Resonance Spectroscopy Aqueous-solution Catalytic Beacons Mercury(Ii) Ions Base-pairs Dna Thymine Sensor Remediation Probe |
研究领域 | Chemistry |
DOI | 10.1039/c1an15585g |
产权排序 | [Chen, Ling; Lou, Tingting; Yu, Chunwei; Chen, Lingxin] Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Kang, Qi] Shandong Normal Univ, Key Lab Mol & Nanomat Probes, Minist Educ China, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Peoples R China; [Chen, Ling; Lou, Tingting; Yu, Chunwei] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
作者部门 | 中科院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心 |
英文摘要 | An approach for mercury ions (Hg(2+)) sensing based on the Hg(2+)-induced aggregation of thymine (T)-SH-functionalized gold nanoparticles (AuNPs) has been reported. The T-SH ligands that we synthesized can easily be coupled to the surface of AuNPs through the Au-S bond and can recognize Hg(2+) with high selectivity by forming a T-Hg-T complex with strong affinity. For the T-SH-functionalized AuNPs (T-S-AuNPs) sensor, upon addition of Hg(2+), the formation of the T-Hg-T complex induces aggregation of T-S-AuNPs and results in a significant change of color and UV-Vis absorption spectra. Thus, our method can be used for the rapid, easy and reliable screening of Hg(2+) in aqueous solution, with high sensitivity (2.8 nM) and selectivity over competing analytes. The developed method is successfully applied to the sensing of Hg(2+) in real environmental samples. |
资助机构 | National Natural Science Foundation of China[20975089, 20975062] ; Chinese Academy of Sciences[KZCX2-EW-206] ; Department of Science and Technology of Shandong Province[2008GG20005005] |
收录类别 | SCI |
语种 | 英语 |
关键词[WOS] | CATALYTIC BEACONS ; MERCURY(II) IONS ; BASE-PAIRS ; DNA ; THYMINE ; SENSOR ; REMEDIATION ; PROBE ; AG+ |
研究领域[WOS] | Chemistry, Analytical |
WOS记录号 | WOS:000296153200021 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.yic.ac.cn/handle/133337/5342 |
专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心 |
通讯作者 | Chen, LX |
作者单位 | 1.Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res. 2.Shandong Normal Univ, Key Lab Mol & Nanomat Probes, Minist Educ China, Coll Chem Chem Engn & Mat Sci. 3.Chinese Acad Sci, Grad Univ. |
推荐引用方式 GB/T 7714 | Chen, L,Lou, TT,Yu, CW,et al. N-1-(2-Mercaptoethyl)thymine modification of gold nanoparticles: a highly selective and sensitive colorimetric chemosensor for Hg(2+)[J]. ANALYST,2011,136(22):4770-4773. |
APA | Chen, L,Lou, TT,Yu, CW,Kang, Q,&Chen, LX.(2011).N-1-(2-Mercaptoethyl)thymine modification of gold nanoparticles: a highly selective and sensitive colorimetric chemosensor for Hg(2+).ANALYST,136(22),4770-4773. |
MLA | Chen, L,et al."N-1-(2-Mercaptoethyl)thymine modification of gold nanoparticles: a highly selective and sensitive colorimetric chemosensor for Hg(2+)".ANALYST 136.22(2011):4770-4773. |
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