Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330031, PR China.
Jiangxi Key Laboratory of Organic Chemistry, College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330031, PR China.
Anal Chim Acta. 2024 Sep 1;1320:342992. doi: 10.1016/j.aca.2024.342992. Epub 2024 Jul 19.
Hydrogen sulfide (HS) is a poisonous pollutant that endangers the environment, and HS is also produced during food spoilage. Herein, we constructed a dicyanoisophorone-based near-infrared (NIR) fluorescent probe (DCID) to detect HS. DCID exhibited significant turn-on fluorescence at 700 nm with a low limit of detection (LOD = 74 nM), large Stokes shift (220 nm), prominent selectivity, and response time (100 s) toward HS. Importantly, the DCID probe had powerful applications in the detection of HS in environmental samples and food spoilage. In addition, based on DCID-loaded test strips and combined a smartphone sensing platform, which provided a portable and convenient approach for the detection of HS.
硫化氢（HS）是一种危害环境的有毒污染物，而且在食物变质过程中也会产生 HS。在此，我们构建了一种基于二氰异佛尔酮的近红外（NIR）荧光探针（DCID）来检测 HS。DCID 在 700nm 处表现出显著的开启荧光，具有低检测限（LOD=74nM）、大斯托克斯位移（220nm）、显著的选择性和对 HS 的响应时间（100s）。重要的是，该 DCID 探针在环境样品和食物变质中 HS 的检测中有很强的应用。此外，基于装载有 DCID 的试条并结合智能手机感应平台，为 HS 的检测提供了一种便携且方便的方法。
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