A polypyrrole doped with fluorescent CdTe quantum dots and incorporated into molecularly imprinted silica for fluorometric determination of ampicillin.
CdTe
Composite
Cross-linker
Emission
Fluorescence
Monomer
Nanoprobe
Optical
Quenching
Template
Journal
Mikrochimica acta
ISSN: 1436-5073
Titre abrégé: Mikrochim Acta
Pays: Austria
ID NLM: 7808782
Informations de publication
Date de publication:
09 05 2019
09 05 2019
Historique:
received:
20
12
2018
accepted:
14
04
2019
entrez:
11
5
2019
pubmed:
11
5
2019
medline:
11
5
2019
Statut:
epublish
Résumé
A fluorometric method is described for the detection of ampicillin. A polypyrrole containing fluorescent CdTe quantum dots was incorporated into a silica-based molecularly imprinted polymer. The composite MIP displays good fluorescence (with excitation/emission maxima at 355/548 nm), and high selectivity and affinity for ampicillin due to the use of polypyrrole. Ampicillin is found to quench the fluorescence of composite much more strongly than the emission of a non-imprinted polymer. The imprinting factor of 7.5 implies that the nanocomposite probe contains specific binding sites. The MIP probe has two linear response ranges, one from 0.10 to 25 μg L
Identifiants
pubmed: 31073696
doi: 10.1007/s00604-019-3447-0
pii: 10.1007/s00604-019-3447-0
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
338Subventions
Organisme : Prince of Songkla University
ID : SCI6301030S-0
Pays : International
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