Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P.R.China.
Analyst. 2011 Oct 21;136(20):4130-3. doi: 10.1039/c1an15522a. Epub 2011 Aug 24.
Upon formation of cytosine-Ag(+)-cytosine base pairs as a mediator for the photoinduced electron transfer, the fluorescence of FAM-labeled DNA was quenched and the fluorescence emission wavelength exhibited a red shift. Based on these phenomena a novel dual-output fluorescent DNA sensor for Ag(+) ions and cysteine detection was developed.
当胞嘧啶 -Ag(+) -胞嘧啶碱基对形成作为光诱导电子转移的介体时,FAM 标记的 DNA 的荧光被猝灭,并且荧光发射波长表现出红移。基于这些现象,开发了用于 Ag(+)离子和半胱氨酸检测的新型双输出荧光 DNA 传感器。