文献类型：期刊文献

英文题名：A colorimetric and turn-on NIR fluorescent probe based on xanthene system for sensitive detection of thiophenol and its application in bioimaging

作者：Guo, Shao-Hua[1]; Leng, Tao-Hua[2]; Wang, Kai[1]; Wang, Cheng-Yun[1]; Shen, Yong-Jia[1]; Zhu, Wei-Hong[1]

机构：[1] Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China; [2] National Food Quality Supervision and Inspection Center [Shanghai] / Shanghai Institute of Quality Inspection and Technical Research, Shanghai, 200233, China

年份：2018

卷号：185

起止页码：359

外文期刊名：Talanta

收录：EI(收录号：20181504992889)

语种：英文

外文关键词：Fluorescence - Colorimetry - Infrared devices - Xanthenes - Probes - Lanthanum compounds

摘要：Developing fluorescent probes for specific detection of extremely toxic thiophenols is pretty significant in the field of environment, chemistry and biology. We report herein a turn-on red fluorescent xanthene-based probe (RD-Probe) for detecting thiophenol with high selectivity over other analytes including aliphatic thiols. The probe could play the part of a "naked-eye"colorimetric indicator toward thiophenol. Moreover, the relative fluorescence intensity at 653 nm displayed good linearity with the concentration of thiophenol ranging from 0 to 6 μM, and the limit of detection for thiophenol could be as low as 15 nM. Furthermore, the practicability of RD-Probe has been successfully proved through the quantitative thiophenol detection in real water samples and fluorescence bioimaging of thiophenol in HeLa cells. ? 2018 Elsevier B.V.