N-1-(2-Mercaptoethyl)thymine modification of gold nanoparticles: a highly selective and sensitive colorimetric chemosensor for Hg(2+)
文献类型：期刊论文
| 作者 | Chen, LX
|
| 刊名 | ANALYST
 |
| 出版日期 | 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 |
| ISSN号 | 0003-2654 |
| 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 |
| 通讯作者 | Chen, LX (reprint author), 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 |
| 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. |
| 学科主题 | Chemistry |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 公开日期 | 2012-03-06 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/5343]  |
| 专题 | 烟台海岸带研究所_山东省海岸带环境工程技术研究中心 |
| 通讯作者 | Chen, LX |
| 推荐引用方式 GB/T 7714 | Chen, LX. 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, 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, LX."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. |
入库方式： OAI收割
来源：烟台海岸带研究所
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