具有超高特异性的银（I）的i-基序调制荧光检测
i-Motif-modulated fluorescence detection of silver(I) with an ultrahigh specificity.
作者信息
Shi Yunhua, Sun Hongxia, Xiang Junfeng, Yu Lijia, Yang Qianfan, Li Qian, Guan Aijiao, Tang Yalin
机构信息
National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; Graduate University of the Chinese Academy of Sciences, Yuquan Road 19(A), Shijingshan District, Beijing 100049, PR China.
National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
出版信息
Anal Chim Acta. 2015 Feb 1;857:79-84. doi: 10.1016/j.aca.2014.12.002. Epub 2014 Dec 4.
A novel Ag(+) sensor has been designed based on the mechanism that i-motif formation induced by Ag(+) was sensitively recognized by a cyanine dye. The sensor exhibited an over 130-16,000 fold selectivity toward Ag(+) than that toward other metal ions. This research not only provides a step forward toward the development of Ag(+) detection but also represents a new application for i-motif DNA.
基于银离子诱导形成的i-基序可被一种花菁染料灵敏识别的机制，设计了一种新型银离子传感器。该传感器对银离子的选择性比对其他金属离子的选择性高130至16000倍以上。这项研究不仅为银离子检测的发展向前迈进了一步，也代表了i-基序DNA的一种新应用。
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