A colorimetric and near-infrared fluorescent turn-on probe for rapid detection of sulfite

Progress in fluorescent probes for sulfur dioxide derivatives

“…Feng课题组 [23] 用萘基荧光素作为荧光团, 两个乙 酰丙酮酸酯基团作为识别基团, 构建了一种打开型荧 Meng课题组 [24] 以香豆素作为荧光团, 发展了具有 双光子荧光特性的打开型荧光探针8 (图4). 该探针…”

“…郭媛课题组 [26,27] Liu课题组 [28] 采用甲酰基作为电子受体, 苯并咪唑 作为电子供体形成推-拉电子体系, 发展了一种基于 [22] 和7 [23] 的结构 图 4 探针8与HSO3 − 的反应机理 [24] (网络版彩图) 图 5 探针9~12的结构 [25~28] http://engine.scichina.com/doi/10.1360/N032017-00122…”

Two-Step Sensing, Colorimetric and Ratiometric Fluorescent Probe for Rapid Detection of Bisulfite in Aqueous Solutions and in Living Cells

“… 8 In early years, some pioneer works about fluorescent probes for bisulfite/sulfite anion have been reviewed. 9 In recent years, some excellent fluorescent probes have been designed by various effective reactions of HSO 3 – /SO 3 2– including nucleophilic addition to an aldehyde, 10 mediated levulinate cleavage, 11 nucleophilic addition to an unsaturated bond, 12 and others. 13 However, there are still some limitations in the reported probes such as poor selectivity over biothiols or H 2 S for most aldehyde- or levulinate-based fluorescent probes, long response time (>5 min for most probes), and high detection limits (>1 μM for half of probes).…”

A colorimetric and fluorogenic probe for bisulfite using benzopyrylium as the recognition unit

“…In recent years, the use of fluorescent probes has been shown to be a powerful technique for sensing anions because of their good selectivity, high sensitivity, simplicity, real‐time detection and in vivo fluorescence imaging. Several fluorescent probes for bisulfite have been constructed based on the nucleophilic reaction with aldehyde, deprotection of levulinate, Michael addition reaction, etc. Although a few fluorescent probes for bisulfite have been reported, most have some limitations such as a long response time and low sensitivity, and suffer interference from reactive sulfur species, which limit their application in biological systems.…”