Uncovering the behavior of screen-printed carbon electrodes modified with polymers molecularly imprinted with lipopolysaccharide

[Display omitted] •Screen-printed carbon electrodes were modified for detecting bacterial endotoxins.•Molecular imprinting was used to prepare the modified interfaces.•Biosensors specifically detected lipopolysaccharides from Pseudomonas Aeruginosa.•Lipopolysaccharides retention switched on the elec...

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Bibliographic Details
Published in:Electrochemistry communications 2021-03, Vol.124, p.106965, Article 106965
Main Authors: Stoica, Bianca Elena, Gavrila, Ana-Mihaela, Sarbu, Andrei, Iovu, Horia, Brisset, Hugues, Miron, Andreea, Iordache, Tanta-Verona
Format: Article
Language:English
Subjects:
Analytical chemistry
Biochemistry
Biochemistry, Molecular Biology
Chemical Sciences
Electrochemical detection
Environmental Engineering
Environmental Sciences
Life Sciences
Lipopolysaccharides
Modified screen-printed carbon electrodes
Molecularly imprinted polymers
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Summary:[Display omitted] •Screen-printed carbon electrodes were modified for detecting bacterial endotoxins.•Molecular imprinting was used to prepare the modified interfaces.•Biosensors specifically detected lipopolysaccharides from Pseudomonas Aeruginosa.•Lipopolysaccharides retention switched on the electrochemical behavior of the biosensors. In the context of global issues concerning pathogen contamination of surface and ground waters, this pioneering study describes the fabrication of screen-printed carbon electrodes modified with polymers molecularly imprinted with lipopolysaccharide in an attempt to detect endotoxins derived from specific Gram-negative bacteria. The biosensors detected lipopolysaccharides derived from Pseudomonas Aeruginosa with high specificity, relative to control sensors, while the response to the same endotoxin derived from Escherichia coli was quite different.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2021.106965