Probing the toxic hypochlorous acid in natural waters and biosystem by a coumarin-based fluorescence probe.
Ecotoxicol Environ Saf
; 282: 116836, 2024 Sep 01.
Article
em En
| MEDLINE
| ID: mdl-39097417
ABSTRACT
Since the onset of the SARS-CoV-2 pandemic in early 2020, there has been a notable rise in sodium hypochlorite disinfectants. Sodium hypochlorite undergoes hydrolysis to generate hypochlorous acid for virus eradication. This chlorine-based disinfectant is widely utilized for public disinfection due to its effectiveness. Although sodium hypochlorite disinfection is convenient, its excessive and indiscriminate use can harm the water environment and pose a risk to human health. Hypochlorous acid, a reactive oxygen species, plays a crucial role in the troposphere, stratospheric chemistry, and oxidizing capacity. Additionally, hypochlorous acid is vital as a reactive oxygen species in biological systems, and its irregular metabolism and level is associated with several illnesses. Thus, it is crucial to identify hypochlorous acid to comprehend its environmental and biological functions precisely. Here, we constructed a new fluorescent probe, utilizing the twisted intramolecular charge transfer mechanism to quickly and accurately detect hypochlorous acid in environmental water and biosystems. The probe showed a notable increase in fluorescence when exposed to hypochlorous acid, demonstrating its excellent selectivity, fast response time (less than 10â¯seconds), a large Stokes shift (â¼ 102â¯nm), and a low detection limit of 15.5â¯nM.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
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Ácido Hipocloroso
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Cumarínicos
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Corantes Fluorescentes
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article