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Reference type: Journal
Authors: Queirós RB, Noronha JP, Marques PVS, Sales MGF
Article Title: Label-free Detection of Microcystin-LR in Waters Using Real-Time Potentiometric Biosensors Based on Single-Walled Carbon Nanotubes Imprinted Polymers.
Publication date: 2012
Journal: Procedia Engineering
Volume: 47
Page numbers: 758-761.
DOI: 10.1016/j.proeng.2012.09.258
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1877705812043214

Abstract: Microcystin-LR (MC-LR) is a dangerous toxin found in environmental waters, quantified by high performance liquid chromatography and/or enzyme-linked immunosorbent assays. Quick, low cost and on-site analysis is thus required to ensure human safety and wide screening programs. This work proposes label-free potentiometric sensors made of solid-contact electrodes coated with a surface imprinted polymer on the surface of Multi-Walled Carbon NanoTubes (CNTs) incorporated in a polyvinyl chloride membrane. The imprinting effect was checked by using non-imprinted materials. The MC-LR sensitive sensors were evaluated, characterized and applied successfully in spiked environmental waters. The presented method offered the advantages of low cost, portability, easy operation and suitability for adaptation to flow methods
Template and target information: microcystin-LR, MC-LR
Author keywords: Biosensors, MC-LR, CNTs, Potenciometric


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