期刊论文

Zhang, Lin

英文

Analytical Sciences

0910-6340

2017

33

2

191-196

10.2116/analsci.33.191

This work was supported by the National Natural Science Foundation of China (No. 81501619), the Grain-Oil Process and Quality Control 2011 Collaborative and Innovative Grant from Hunan Province of China, a Natural Science Foundation of Hunan Province of China (No. 2015JJ3177), a science foundation from the Science and Technology Department of Changsha of China (No. k1501003-31), the Science Foundation from Education Department of Hunan Province of China (No. 14C1184), the college students' science and technology innovation project form Education Department of Hunan Province of China (2014, 2015), the initiation funding to Lin Zhang from Central South University for Forestry and Technology, the Special Fund for Agro-scientific Research in the Public Interest of China (201303071, 201303084), the S&T Plan Key Project of Hunan (2013WK4006) and the initiation funding to Tao Yang from Central South University for Forestry and Technology.

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This study aimed to develop a label-free, sensitive, selective, and environment-friendly fluorescent peptide probe His-His-Trp-His (HHWH) for determining the concentration of copper ion (Cu 2+ ) in aqueous solutions. The results demonstrated that the designed HHWH has a high selectivity and sensitivity for monitoring the concentration of free Cu 2+ via quenching of the probe fluorescence upon a binding of Cu 2+ . The fluorescence intensity of the HHWH had a linear relationship with the concentration of Cu 2+ between 10 nM and 10 μM, and the de...