SERS-active plasmonic metal NP-CsPbX3 films for multiple veterinary drug residues detection.
Food Chem
; 412: 135420, 2023 Jun 30.
Article
en En
| MEDLINE
| ID: mdl-36764211
ABSTRACT
Sensitive and multiple veterinary drug residues detection is of important for food safety. Herein, uniform plasmonic Au nanobipyramids@Ag nanorods (Au NBP@Ag NR)-CsPbX3 films with strong surface-enhanced Raman scattering (SERS) activity were constructed. The effects of different CsPbX3 (X = Cl, Br, I, or mixed halogens) quantum dots (QDs) on the SERS performances of plasmonic metal NP films were investigated. CsPbI3 QDs with large dielectric constant could be served as the dielectric media to retard the attenuation of electromagnetic evanescent wave, inducing strong electromagnetic strength for SERS enhancement. Plasmon-induced metal-to-perovskite interfacial charge transfer transition also contributed to SERS enhancement. SERS-active plasmonic Au NBP@Ag NR-CsPbI3 films had excellent sensitivity and high reproducibility for quantitative, accurate and multiple detection of chloramphenicol, diazepam and malachite green in food matrix. This work deepened the understanding of the SERS enhancement mechanisms of plasmonic metal NP-perovskite hybrid heterostructures, showing potential prospects in food safety monitoring.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Drogas Veterinarias
/
Nanopartículas del Metal
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
Food Chem
Año:
2023
Tipo del documento:
Article