A ratiometric method for tracing the variation of selenocysteine (Sec) in a cell matrix was provided. This was constructed by the quantitative correlation between the fluorescence ratio ofRat-Sec(blue emission, the probe) andNap-OH(green-yellow emission, the product from a Sec-specific reaction) and the concentration of Sec.
A colorimetric and fluorescent probe for thiols based on 1, 8-naphthalimide and its application for bioimaging
作者:Jinmin Shi、Yujiao Wang、Xiaoliang Tang、Wei Liu、Huie Jiang、Wei Dou、Weisheng Liu
DOI:10.1016/j.dyepig.2013.09.021
日期:2014.1
compound (probe 1) has been designed and synthesized. The colorimetric and fluorescent properties of probe 1 towards various amino acids were investigated in detail. Specific colorimetry and fluorescence response of probe 1 for thiols were found in PBS buffer solution, which can be deduced to a reaction of thio-promoted conjugate addition/cyclization sequence between probe 1 and thiols. The probe 1 can
A general strategy to quantify analytes through fluorescence chromaticity and luminosity
作者:Tianyu Liang、Peiwei Yang、Tianhong Wu、Menghan Shi、Xiayu Xu、Taotao Qiang、Xiaolong Sun
DOI:10.1016/j.cclet.2020.07.012
日期:2020.11
representative fluorescent probes, targeting pH, cysteine, hydrogen sulfide, hydrogenperoxide, palladium and hydrazine, were synthesized and tested. Without utilizing costly instrumentations, portable devices were employed to collect data of photographs from the fluorescence samples in responses to different analytes. Subsequently, the photographicimages were digitally processed to generate calibration curves