A General Strategy for Development of Near-Infrared Fluorescent Probes for Bioimaging.

A General Strategy for Development of Near-Infrared Fluorescent Probes for Bioimaging.
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生物成像近红外荧光探针开发的一般策略。

DOI:
10.1002/anie.201710688
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发表时间:
2017-12-22
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
通讯作者:
Xian M
Xian M
中科院分区:
其他
文献类型:
--
作者:
Chen W;Xu S;Day JJ;Wang D;Xian M

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近红外(NIR)荧光染料具有良好的光物理性质,在生物成像方面具有很高的应用价值,但此类染料仍然很少见。介绍了一类独特的近红外染料的研究进展,该染料是通过用四氢喹恶啉稠环修饰Rhodol支架而得到的。这些新染料表现出很大的斯托克斯位移(>110 nm)。其中,WR3、WR4、WR5和WR6在水溶液中表现出较高的荧光量子产率和良好的光稳定性。此外,它们的荧光性质可以通过对酚羟基的简单修饰来调节。以WR6为基础,设计了两种近红外荧光开启探针WSP-NIR和SESP-NIR,用于硫化氢的检测。将SESP-NIR探针应用于细胞内硫化氢的可视化。这些染料有望成为开发新的生物成像近红外探测器的有用的荧光团支架。
Near-infrared (NIR) fluorescent dyes with favorable photophysical properties are highly useful for bioimaging, but such dyes are still rare. The development of a unique class of NIR dyes via modifying the rhodol scaffold with fused tetrahydroquinoxaline rings is described. These new dyes showed large Stokes shifts (> 110 nm). Among them, WR3, WR4, WR5, and WR6 displayed high fluorescence quantum yields and excellent photostability in aqueous solutions. Moreover, their fluorescence properties were tunable by easy modifications on the phenolic hydroxy group. Based on WR6, two NIR fluorescent turn-on probes, WSP-NIR and SeSP-NIR, were devised for the detection of H2S. The probe SeSP-NIR was applied in visualizing intracellular H2S. These dyes are expected to be useful fluorophore scaffolds in the development of new NIR probes for bioimaging.
DOI: 10.1039/c4cs00298a
发表时间: 2015-07-21
影响因子: 46.2
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