Detection of penicillin G residues in milk based on dual-emission carbon dots and molecularly imprinted polymers.

Jalili, R; Khataee, A; Rashidi, M-R; Razmjou, A

Detection of penicillin G residues in milk based on dual-emission carbon dots and molecularly imprinted polymers.

Jalili, R Khataee, A Rashidi, M-R Razmjou, A

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Food chemistry, 2020, 314, pp. 126172
Issue Date:: 2020-06

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Field	Value	Language
dc.contributor.author	Jalili, R
dc.contributor.author	Khataee, A
dc.contributor.author	Rashidi, M-R
dc.contributor.author	Razmjou, A
dc.date.accessioned	2021-02-16T20:19:01Z
dc.date.available	2020-01-06
dc.date.available	2021-02-16T20:19:01Z
dc.date.issued	2020-06
dc.identifier.citation	Food chemistry, 2020, 314, pp. 126172
dc.identifier.issn	0308-8146
dc.identifier.issn	1873-7072
dc.identifier.uri	http://hdl.handle.net/10453/146152
dc.description.abstract	Instant detection of antibiotic residues in dairy products has been remained a challenge. Current methods require careful samples storage and handling, skilled personnel, and expensive instrumentations. Herein, we report the preparation of a ratiometric fluorescent sensor that contains different colored Carbon dots (CDs) as dual fluorophores, and a mesoporous structured molecularly imprinted polymer as a receptor (B/YCDs@mMIP) for penicillin-G (PNG) detection in milk. Upon PNG addition, only the fluorescence of yellow emissive CDs was quenched due to analyte blockage, while that of the blue emissive CDs stayed almost constant, which led to an obvious change in the fluorescence color from the yellow to blue. A linear response in the range of 1-32 nM with a detection limit of 0.34 nM and excellent recognition specificity for PNG over its analogs were also observed. Comparing our sensor with its counterparts, it exhibited a promising potential in the in-situ PNG detection in milk.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Food chemistry
dc.relation.isbasedon	10.1016/j.foodchem.2020.126172
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Food Science
dc.subject.mesh	Milk
dc.subject.mesh	Animals
dc.subject.mesh	Carbon
dc.subject.mesh	Penicillin G
dc.subject.mesh	Polymers
dc.subject.mesh	Fluorescent Dyes
dc.subject.mesh	Spectrometry, Fluorescence
dc.subject.mesh	Food Analysis
dc.subject.mesh	Quantum Dots
dc.subject.mesh	Food Contamination
dc.subject.mesh	Nanocomposites
dc.subject.mesh	Molecular Imprinting
dc.subject.mesh	Limit of Detection
dc.subject.mesh	Animals
dc.subject.mesh	Carbon
dc.subject.mesh	Fluorescent Dyes
dc.subject.mesh	Food Analysis
dc.subject.mesh	Food Contamination
dc.subject.mesh	Limit of Detection
dc.subject.mesh	Milk
dc.subject.mesh	Molecular Imprinting
dc.subject.mesh	Nanocomposites
dc.subject.mesh	Penicillin G
dc.subject.mesh	Polymers
dc.subject.mesh	Quantum Dots
dc.subject.mesh	Spectrometry, Fluorescence
dc.title	Detection of penicillin G residues in milk based on dual-emission carbon dots and molecularly imprinted polymers.
dc.type	Journal Article
utslib.citation.volume	314
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2021-02-16T20:18:27Z
pubs.publication-status	Published
pubs.volume	314

Abstract:

Instant detection of antibiotic residues in dairy products has been remained a challenge. Current methods require careful samples storage and handling, skilled personnel, and expensive instrumentations. Herein, we report the preparation of a ratiometric fluorescent sensor that contains different colored Carbon dots (CDs) as dual fluorophores, and a mesoporous structured molecularly imprinted polymer as a receptor (B/YCDs@mMIP) for penicillin-G (PNG) detection in milk. Upon PNG addition, only the fluorescence of yellow emissive CDs was quenched due to analyte blockage, while that of the blue emissive CDs stayed almost constant, which led to an obvious change in the fluorescence color from the yellow to blue. A linear response in the range of 1-32 nM with a detection limit of 0.34 nM and excellent recognition specificity for PNG over its analogs were also observed. Comparing our sensor with its counterparts, it exhibited a promising potential in the in-situ PNG detection in milk.

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http://hdl.handle.net/10453/146152