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
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

338

Subventions

Organisme : Prince of Songkla University
ID : SCI6301030S-0
Pays : International

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Auteurs

Phannika Raksawong (P)

Center of Excellence for Innovation in Chemistry, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.

Piyaluk Nurerk (P)

Center of Excellence for Innovation in Chemistry, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.

Kochaporn Chullasat (K)

Center of Excellence for Innovation in Chemistry, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.

Proespichaya Kanatharana (P)

Center of Excellence for Innovation in Chemistry, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.

Opas Bunkoed (O)

Center of Excellence for Innovation in Chemistry, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand. opas.b@psu.ac.th.

Classifications MeSH