Hypha-templated synthesis of carbon/ZnO microfiber for dopamine sensing in pork.
Food Chem
; 335: 127646, 2021 Jan 15.
Article
en En
| MEDLINE
| ID: mdl-32731123
ABSTRACT
Carbon/ZnO coaxial microfibers were synthesized with the hypha of Penicillium expansum as low-cost and green template. The SEM images, XRD and Raman spectra were used to characterize the morphology and chemical components of the prepared microfibers. The formation of the coaxial structure could be attributed to the attachment of Zn2+ onto the hypha surface through coordination and electrostatic interactions. Sensing performance of the carbon/ZnO microfibers toward Dopamine (DA) were evaluated by dropping method. Results showed that the proposed sensor exhibited good selectivity, reproducibility, and stability with a detection limit of 0.106 µM. Two linear ranges were obtained from 0 to 50 and 50 to 300 µM. The practicality of the carbon/ZnO microfibers was supported by the successful detection of DA in pork with recovery ranging from 96.85% to 104.51%. Based on the excellent electrochemical performance and easy preparation, the proposed sensor provides a promising method for determination of DA.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Penicillium
/
Óxido de Zinc
/
Carbono
/
Técnicas Biosensibles
/
Dopamina
/
Hifa
/
Carne
Tipo de estudio:
Evaluation_studies
Idioma:
En
Revista:
Food Chem
Año:
2021
Tipo del documento:
Article