A novel addition–elimination cascade reaction and FRET-basedfluorescentprobe for the colorimetric and ratiometric signaling of hydrogensulfide was designed. Employing of 2-formylbenzoic acid as the trapper, the probe was highly selective and sensitive to H2S over other biologically relevant species to give color change from colorless to bright orange for naked eye observation. A linear response
Aryl-heteroaromatic products, compositions comprising them and use
申请人:Mailliet Patrick
公开号:US20050014765A1
公开(公告)日:2005-01-20
Aryl-heteroaromatic products, compositions comprising them and use. The present invention relates to novel chemical compounds, particularly to novel aryl-heteroaromatic products, to compositions comprising them, and to their use as medicaments, in particular in oncology.
A novel FRET-basedratiometricfluorescentprobe H2S-CR for the quantitative detection of H2S was designed and synthesized. It exhibits a response time of 20 min, a considerable fluorescence signal enhancement (15 fold), and an extremely low detection limit (19 nM). It can be successfully applied to imaging H2S in livingcells.
Visualizing HClO and ONOO− fluxes based on bifunctional fluorescent probe
作者:Jun Tang、Shenbo Deng、Yanxin Xie、Shaozhu Li、Yiman Qiao、Li Zhu、Jiao Guo、Jianwei Zhou、Yong Ye
DOI:10.1016/j.dyepig.2024.112183
日期:2024.8
to resarch the intrinsic interrelationship between HClO and ONOO and the distribution of the two active substances within the cell, it is highly beneficial to develop fluorescence sensors capable of exhibiting distinct signals for HClO, ONOO, and the combination of HClO/ONOO. Here, we reasonably designed and constructed a newfluorescence sensor () with three different fluorescence signal outputs of
An efficient protocol for the synthesis of various substituted phenylpiperazines was developed using sulfolane as solvent. The protocol was clean, high yielding and products were obtained in high purities (>= 99%). It was also fast and convenient, as the final products were precipitated as hydrochloride salts and could be obtained by filtration. Sulfolane, an aprotic, dipolar, high boiling and recoverable solvent was used as a substitute for common organic solvents. (C) 2015 Elsevier Ltd. All rights reserved.