An optosensor based on a hybrid sensing probe of mesoporous carbon and quantum dots embedded in imprinted polymer for ultrasensitive detection of thiamphenicol in milk.
Composite
Fluorescence quenching
MIP
Mesoporous carbon
Optosensor
Quantum dots
Journal
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
ISSN: 1873-3557
Titre abrégé: Spectrochim Acta A Mol Biomol Spectrosc
Pays: England
ID NLM: 9602533
Informations de publication
Date de publication:
05 Jan 2022
05 Jan 2022
Historique:
received:
10
06
2021
revised:
03
08
2021
accepted:
24
08
2021
pubmed:
5
9
2021
medline:
27
10
2021
entrez:
4
9
2021
Statut:
ppublish
Résumé
A hybrid fluorescent sensing probe was developed and used to quantitatively analyse thiamphenicol. The probe was constructed by entrapping mesoporous carbon and CdTe*CdS*ZnS quantum dots in molecularly imprinted polymer. The probe was characterized, and the construction and detection conditions were optimized. In the optimized conditions, the recognition sites of the nanoprobe were ultrasensitive and highly selective toward thiamphenicol. The quantitative analysis of thiamphenicol was based on the fluorescence quenching of the hybrid nanoprobe by thiamphenicol. Fluorescence emission was quenched linearly from 0.10 to 100 μg L
Identifiants
pubmed: 34481254
pii: S1386-1425(21)00901-X
doi: 10.1016/j.saa.2021.120324
pii:
doi:
Substances chimiques
Cadmium Compounds
0
Polymers
0
Carbon
7440-44-0
Thiamphenicol
FLQ7571NPM
Tellurium
NQA0O090ZJ
cadmium telluride
STG188WO13
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
120324Informations de copyright
Copyright © 2021 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.