A novel near-infrared fluorescent probe for highly selective recognition of hydrogen sulfide and imaging in living cells
作者:Keli Zhong、Longlong Deng、Jie Zhao、Xiaomei Yan、Tong Sun、Jianrong Li、Lijun Tang
DOI:10.1039/c8ra03457e
日期:——
near-infrared fluorescent probe (L) based on a 1,4-diethyl-1,2,3,4-tetrahydro-7H-pyrano[2,3-g]quinoxalin-7-one scaffold has been synthesized and characterized. Probe L displays highly selective and sensitive recognition to H2S over various anions and biological thiols with a large Stokes shift (125 nm) in THF/H2O (6/4, v/v, Tris–HCl 10 mM, pH = 7.4). This probe exhibits turn-on fluorescence for H2S through HS−
合成了一种基于 1,4-diethyl-1,2,3,4-tetrahydro-7 H - pyrano[2,3 - g ]quinoxalin-7-one 支架的新型近红外荧光探针 ( L ),并表征。探针L在 THF/H 2 O(6/ 4,v/v,Tris-HCl 10 mM,pH = 7.4)。该探针通过 HS -诱导的二硝基苯醚硫解显示 H 2 S的开启荧光。用L孵育的 MCF-7 细胞的共聚焦激光扫描显微照片证实L具有细胞渗透性,可以成功检测活细胞中的H 2 S。