ß-cyclodextrin/spiropyran-functionalized optical-driven hydrogel film for bisphenol A detection in food packaging.
Food Chem
; 455: 139875, 2024 Oct 15.
Article
en En
| MEDLINE
| ID: mdl-38823145
ABSTRACT
Bisphenol A (BPA), an endocrine disruptor, is widely used in food packaging materials, including drink containers. Sensitive detection of BPA is crucial to food safety. Herein, we have developed a novel optical-driven hydrogel film sensor for sensitive BPA detection based on the displacement of spiropyran (SP) from ß-cyclodextrin (ß-CD) cavity by BPA followed by the photochromism of the released SP. The released SP converts to the ring-opened merocyanine form which shows an enhanced red fluorescence in the dark. The sensor demonstrates a linear detection range from 0.1 to 20 µg mL-1 with a limit of detection at 0.027 µg mL-1 and a limit of quantification at 0.089 µg mL-1. Notably, the proposed ß-CD/SP hydrogel can be reused due to the reversible isomerization of SP and the reversible host-guest interaction. This sensor also shows good performance for BPA determination in real samples, indicating its great potential for food safety monitoring.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Fenoles
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Compuestos de Bencidrilo
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Benzopiranos
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Contaminación de Alimentos
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Embalaje de Alimentos
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Hidrogeles
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Beta-Ciclodextrinas
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Indoles
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Nitrocompuestos
Idioma:
En
Revista:
Food Chem
Año:
2024
Tipo del documento:
Article