An ESIPT-based mitochondria-targeted ratiometric and NIR-emitting fluorescent probe for hydrogen peroxide and its bioimaging in living cells

An ESIPT-based mitochondria-targeted ratiometric and NIR-emitting fluorescent probe for hydrogen peroxide and its bioimaging in living cells
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基于 ESIPT 的线粒体靶向比例和近红外发射荧光探针,用于过氧化氢及其在活细胞中的生物成像

DOI:
10.1016/j.dyepig.2017.12.028
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发表时间:
2017-12
期刊:
影响因子:
4.5
通讯作者:
Yanjiang Bian
Yanjiang Bian
中科院分区:
材料科学2区
文献类型:
--
作者:
Lijun Tang;Mingyu Tian;Haibo Chen;Xiaomei Yan;Keli Zhong;Yanjiang Bian

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已开发出一种可靶向线粒体的比率荧光探针HBTPB,用于检测H2 O2,具有近红外(NIR)发射和大斯托克斯位移(357 nm)。探针HBTPB对H2 O2的选择性高于其它活性氧/氮物质(ROS/RNS)、生物硫醇和阴离子。该探针的检测限低至5.9 × 10− 7 M。通过NMR和质谱分析证实的传感过程表明,H2 O2的加入到HBTPB的溶液引发氧化水解和随后的消除反应进行释放ESIPT(激发态分子内质子转移)功能的荧光染料。探针HBTPB具有细胞渗透性,并已被应用于检测活的A549细胞中的外源性和内源性H2 O2。
A mitochondria-targetable ratiometric fluorescent probe,HBTPB, has been developed for the detection of H2O2with a near infrared (NIR) emission and a large Stokes shift (357 nm). ProbeHBTPBdisplays high selectivity toward H2O2over other reactive oxygen/nitrogen species (ROS/RNS), biological thiols and anions. The detection limit of this probe is as low as 5.9 × 10−7M. The sensing process confirmed by NMR and mass spectral analysis shows that the addition of H2O2to the solution ofHBTPBtriggers an oxidative hydrolysis and a subsequent elimination reaction undergoes to release an ESIPT (excited-state intramolecular proton transfer) featured fluorescent dye. ProbeHBTPBis cell permeable and has been applied to sense exogenous and endogenous H2O2in living A549 cells.
一种高特异性次氯酸芘荧光探针及其在细胞成像中的应用
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