Sensitive colorimetric Hg2+ detection via amalgamation-mediated shape transition of gold nanostars

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成果类型：

期刊论文

作者：

Xu, Dong;Yu, Shufang;Yin, Yueqin;Wang, Suyan;Lin, Qinlu*;...

通讯作者：

Lin, Qinlu

作者机构：

[Yin, Yueqin; Xu, Dong; Yu, Shufang; Wang, Suyan; Lin, Qinlu] Cent South Univ Forestry & Technol, Coll Food Sci & Engn, Natl Engn Lab Rice & Byprod Further Proc, Changsha, Hunan, Peoples R China.

[Yin, Yueqin; Xu, Dong; Yu, Shufang; Wang, Suyan; Lin, Qinlu] Cent South Univ Forestry & Technol, Coll Food Sci & Engn, Hunan Key Lab Processed Food Special Med Purpose, Changsha, Hunan, Peoples R China.

[Yuan, Zhiqin] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing, Peoples R China.

通讯机构：

[Lin, Qinlu] C

Cent South Univ Forestry & Technol, Coll Food Sci & Engn, Natl Engn Lab Rice & Byprod Further Proc, Changsha, Hunan, Peoples R China.

Cent South Univ Forestry & Technol, Coll Food Sci & Engn, Hunan Key Lab Processed Food Special Med Purpose, Changsha, Hunan, Peoples R China.

语种：

英文

关键词：

Hg2+ quantification;LSPR sensing;amalgamation;gold nanostar;morphological transformation

期刊：

FRONTIERS IN CHEMISTRY

ISSN：

2296-2646

年：

2018

卷：

期：

NOV

页码：

566

DOI：

10.3389/fchem.2018.00566

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21505162, 31571874, 81501619]; Scientific Research Project of Hunan Provincial Education Department [17A228]; Natural Science Foundation of Hunan ProvinceNatural Science Foundation of Hunan Province [2016JJ3183]; Fund of Hunan Provincial Education DepartmentHunan Provincial Education Department [16C1654]; Training Program for Excellent Young Innovators of Changsha [kq1707020]

机构署名：

本校为第一且通讯机构

院系归属：

食品科学与工程学院

摘要：

Reliable and sensitive methods to monitor mercury levels in real samples are highly important for environment protection and human health. Herein, a label-free colorimetric sensor for Hg 2+ quantitation using gold nanostar (GNS) has been demonstrated, based on the formation of Au-Hg amalgamate that leads to shape-evolution of the GNS and changes in its absorbance. Addition of ascorbic acid (AA) to GNS solution is important for quantitation of Hg 2+ , mainly because it can reduce Hg 2+ to Hg to enhance amalgamation on the GNSs and stabilize GNSs...

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Sensitive colorimetric Hg2+ detection via amalgamation-mediated shape transition of gold nanostars

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