A label-free fluorescent peptide probe for sensitive and selective determination of copper and sulfide ions in aqueous systems

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成果类型：

期刊论文

作者：

Zhang, Yadan;Cai, Yunhui;He, Yonghui;Lin, Qinlu;Ren, Jiali;...

通讯作者：

Zhang, Lin

作者机构：

[Cai, Yunhui; Ren, Jiali; Zhang, Yadan; Zhang, Lin; Lin, Qinlu] Cent South Univ Forestry & Technol, Sch Food Sci & Engn, Hunan Key Lab Forestry Edible Resources Safety &, Natl Engn Lab Rice & Byprod Deep Proc,Hunan Key L, Changsha 410004, Peoples R China.

[He, Yonghui] Yunnan Minzu Univ, Key Lab Chem Ethn Med Resources, State Ethn Affairs Commiss, Kunming 650500, Yunnan, Peoples R China.

[He, Yonghui] Yunnan Minzu Univ, Minist Educ, Kunming 650500, Yunnan, Peoples R China.

[Cao, Dongsheng] Cent South Univ, Xiangya Sch Pharmaceut Sci, Changsha 410083, Peoples R China.

通讯机构：

[Zhang, Lin] C

Cent South Univ Forestry & Technol, Sch Food Sci & Engn, Hunan Key Lab Forestry Edible Resources Safety &, Natl Engn Lab Rice & Byprod Deep Proc,Hunan Key L, Changsha 410004, Peoples R China.

语种：

英文

期刊：

RSC Advances

ISSN：

2046-2069

年：

2021

卷：

期：

页码：

7426-7435

DOI：

10.1039/d0ra08788b

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [81501619, 31972173]; program for Science and Technology of Education Department of Hunan Province [20B620]; Hunan key research and development plan project [2020NK2020]; Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning [2020KFJJ03]; program for Science and Technology of Changsha, China [kq1907096]; program for Science & Technology Innovation Platform/Talents of Hunan Province [2019TP1029, 2018XK2006]; program for Science &Technology Innovation Talents of Hunan Province [2017TP1021]; Natural Science Foundation of Hunan Province of ChinaNatural Science Foundation of Hunan Province [2018JJ3300]; project of Chang-Zhu-Tan National Independent Innovation Demonstration Zone [2018XK2007]

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：

A label free fluorescent peptide probe (HDSGWEVHH) was used for Cu2+and S2−determination in aqueous solution. Our results demonstrated that HDSGWEVHH is highly selective and sensitive for monitoring free Cu2+concentrationviaquenching of the probe fluorescence upon Cu2+binding. The mechanism of the complexation is investigated with Cyclic Voltammetry (CV),1H nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR) spectroscopy and computational techniques. Theoretical calculation results indicated the binding ratio of the probe t...

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A label-free fluorescent peptide probe for sensitive and selective determination of copper and sulfide ions in aqueous systems

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