Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2024 Sep 1:1320:342992.
doi: 10.1016/j.aca.2024.342992. Epub 2024 Jul 19.

A near-infrared turn-on fluorescent probe for the detection of hydrogen sulfide in water samples and food spoilage

Wenjuan Cai  1 , Tian Xin  1 , Yayi Tu  1 , Leilei Sun  2 , Guanming Liao  1 , Gang Liu  1 , Congbin Fan  3
Affiliations

A near-infrared turn-on fluorescent probe for the detection of hydrogen sulfide in water samples and food spoilage

Wenjuan Cai et al. Anal Chim Acta. .

Abstract

Hydrogen sulfide (H2S) is a poisonous pollutant that endangers the environment, and H2S is also produced during food spoilage. Herein, we constructed a dicyanoisophorone-based near-infrared (NIR) fluorescent probe (DCID) to detect H2S. 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 H2S. Importantly, the DCID probe had powerful applications in the detection of H2S 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 H2S.

Keywords: Food spoilage; Hydrogen sulfide; NIR fluorescent probe; Water samples.

PubMed Disclaimer

Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

MeSH terms

LinkOut - more resources