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A ratiometric benzothiazole-based fluorescence probe for selectively recognizing HClO and its practical applications

查看全文 作　　者：Kaijie [1]Wang;Dazhou [1]Xi;Chuantao [1]Liu;Yahui [1]Chen;Hao [1]Gu;Long [1]Jiang;Xiaoqiang [1]Chen;Fang [1]Wang 高影响力作者 机构地区：[1]State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemical Engineering,Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM),Nanjing Tech University,Nanjing 211816,China高影响力机构 出　　处：《Chinese Chemical Letters》索引2020年第31卷第11期,共5页高影响力期刊 基　　金：the National Key Research and Development Program of China(No.2018YFA0902200);the National Natural Science Foundation of China(Nos.21722605,21978131 and 21878156);the Six Talent Peaks Project in Jiangsu Province(No.XCL-034);the Project of Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)。 摘　　要：A ratiometric probe(HBT-HBZ)bearing 2-hydrazino benzothiazole and 3-(benzo[d]thiazol-2-yl)-2-hydroxy-5-methylbenzaldehyde for sensing hypochlorous acid(HClO)with high selectivity and sensitivity is reported in this article.The fluorescence intensity ratios(I470nm/I572nm)of the probe with different concentrations of analyte showed excellent selectivity and a linear response to minor changes in HClO.The detection limit of 24 nmol/L suggests that the sensor is very sensitive to HClO.According to the series of performed experiments,HBT-HBZ has practical applications,such as the detection of HClO residues in tap water,which has been rarely reported.In addition,confocal laser microscopy experiments confirmed that HBT-HBZ can selectively recognize HClO in HeLa cells.A ratiometric probe(HBT-HBZ)for sensing HClO with high selectivity and sensitivity is reported in this article.The probe exhibited high selectivity for HClO among other ROS,RNS and anions.In addition,HBTHBZ has some practical applications such as the analysis of the HClO content in tap water.Furthermore,confocal fluorescence microscopy imaging showed that HBT-HBZ can be applied for detecting HClO in living cells. 关 键 词：HClO BENZOTHIAZOLE Fluorescence probe Tap water BIOIMAGING
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