Fluorescence enhancement of near infrared cell membrane probe by β-cyclodextrin supramolecular interaction
作者:Qing Yu、Gang Zhang、Ya-Nan Wang、Hao-Chi Hao、Ru Sun、Yu-Jie Xu、Jian-Feng Ge
DOI:10.1016/j.dyepig.2022.110693
日期:2022.11
β-cyclodextrin was evaluated and applied to cell imaging. Probe PM-A had no fluorescence in water, but had obvious fluorescence signal in β-cyclodextrin solution. With the addition of β-cyclodextrin (0–800 eq), the fluorescencequantumyield of PM-A increased from 0% to 45%. Laser confocal experiments showed that when only PM-A was added, the probe concentration needed to be 15 μM to image the cell membrane
A reaction-based colorimetric and ratiometric fluorescent probe based on an ICT-strategy for selective detection of H2S that exploited the H2S-mediated reduction of nitrocompound to amines was explored. And it displayed high selectivity for H2S over other relevant reactivesulfur, oxygen, nitrogenspecies and other anions with more than 120 nm blue shift and the change of emission intensity ratio inducted