ArticleMikrochimica acta2025
High sensitivity determination of ciprofloxacin by fluorescence sensor based on encapsulation of coumarin derivative with ZIF-8.
Article in Mikrochimica acta, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Ciprofloxacin (CIP), a third-generation fluoroquinolone antibiotic, exhibits broad-spectrum antibacterial activity and is widely used in clinical and veterinary practice. However, long-term exposure to CIP poses potential health risks to living organisms. Leveraging its efficient fluorescence quenching effect on coumarin derivatives, a highly sensitive fluorescent probe (CD@ZIF-8) was developed by encapsulating a coumarin derivative within a zeolitic imidazolate framework-8 (ZIF-8) matrix. Fluorescence emission peaks of the CD@ZIF-8 located at 505 nm when the excitation wavelength was 450 nm. This fluorescent probe was developed for the quantitative detection of CIP. The inner filter effect (IFE) was identified as the primary quenching mechanism. The detection limit for CIP was 58.9 nM, with a relative standard deviation (RSD) not exceeding 3.0%. Satisfactory recoveries ranging from 99.75% to 112.19% demonstrate the good accuracy of CD@ZIF-8 for CIP detection. The sensor exhibits excellent stability, high selectivity, and strong anti-interference capability, thus providing a promising strategy for highly sensitive detection of CIP with potential applications in safeguarding human health and ensuring food safety.
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