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Gold nanostar as an ultrasensitive colorimetric probe for picomolar detection of lead ion

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成果类型:
期刊论文
作者:
Wang, Suyan;Huang, Xiaohui;An, Qingxiao;Zhou, Rongju;Xu, Weizhen;...
通讯作者:
Xu, Dong(philip198349@gmail.com);Lin, Qinlu(LinQL0403@163.com)
作者机构:
[An, Qingxiao; Zhou, Rongju; Xu, Dong; Wang, Suyan; Xu, Weizhen; Lin, Qinlu] Cent South Univ Forestry & Technol, Coll Food Sci & Engn, Natl Engn Lab Rice & Byprod Further Proc, Changsha 410004, Peoples R China.
[Xu, Dong; Wang, Suyan] Hunan Prov Key Lab Food Safety Monitoring & Early, Changsha 410004, Peoples R China.
[Huang, Xiaohui] Hunan Edible Fungi Inst, Changsha 410004, Peoples R China.
[Cao, Xuan] Univ South China, Dept Pharm, Henyang 421001, Peoples R China.
通讯机构:
[Lin, Qinlu] N
[Xu, Dong; Huang, Xiaohui] H
National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China<&wdkj&>Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, 410004, China<&wdkj&>National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China
语种:
英文
关键词:
Colorimetric;Etching;Gold nanostar;Lead ion
期刊:
Analytica Chimica Acta
ISSN:
0003-2670
年:
2021
卷:
1160
页码:
338380
基金类别:
CRediT authorship contribution statement Suyan Wang: Methodology, Investigation, Writing – original draft. Xiaohui Huang: Methodology, Investigation, Validation, Writing – review & editing. Qingxiao An: Methodology, Writing – original draft, Validation. Rongju Zhou: Methodology, Validation, Writing – original draft, Writing – review & editing. Weizhen Xu: Methodology, Validation, Writing – original draft. Dong Xu: Conceptualization, Methodology, Writing – original draft, Writing – review & editing, Project administration, Acknowledgements This work was supported by funding from the National Natural Science Foundation of China (21505162, 31571874), the Grain-Oil Process and Quality Control 2011 Collaborative and Innovative Grant from Hunan province, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning (2020KFJJ02, 2020KFJJ05), and Training Program for Excellent Young Innovators of Changsha (kq1802043). We also gratefully acknowledge financial support from China Scholarship Council.
机构署名:
本校为其他机构
院系归属:
药学与生物科学学院
摘要:
The sensitivity for analytes of interest is vital for environment protection and food safety. Here, we propose an extremely sensitive assay toward Pb2+ by using gold nanostars (GNSs) as probes based on the catalytic activity of Pb on etching gold atoms after being reduced in the presence of 2-mercaptoethanol (2-ME) and sodium thiosulfate. GNSs were prepared by using 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid as both the reducing and capping agents, enabling high stability and sensitivity for quantitation of Pb2+. Upon increasing Pb2+ co...

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