Engineering an enzyme-like catalytic sensor for on-site dual-mode evaluation of total antioxidant capacity.
Mikrochim Acta
; 191(8): 465, 2024 07 16.
Article
em En
| MEDLINE
| ID: mdl-39012354
ABSTRACT
A novel Fe-MoOx nanozyme, engineered with enhanced peroxidase (POD)-like activity through strategic doping and the creation of oxygen vacancies, is introduced to catalyze the oxidation of TMB with high efficiency. Furthermore, Fe-MoOx is responsive to single electron transfer (SET) and hydrogen atom transfer (HAT) mechanisms related to antioxidants and can serve as a desirable nanozyme for total antioxidant capacity (TAC) determination. The TAC colorimetric platform can reach a low LOD of 0.512 µM in solution and 24.316 µM in the smartphone-mediated RGB hydrogel (AA as the standard). As proof of concept, the practical application in real samples was explored. The work paves a promising avenue to design diverse nanozymes for visual on-site inspection of food quality.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Temas:
Alimentacao
Base de dados:
MEDLINE
Assunto principal:
Oxirredução
/
Colorimetria
/
Antioxidantes
Idioma:
En
Revista:
Mikrochim Acta
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China