Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/6744
Título: Label-free Detection of Microcystin-LR in Waters Using Real-Time Potentiometric Biosensors Based on Single-Walled Carbon Nanotubes Imprinted Polymers
Autor: Queirós, Raquel B.
Noronha, João P. C.
Marques, P.V.S.
Sales, M. Goreti F.
Palavras-chave: Biosensors
MC-LR
CNTs
Potenciometric
Data: 2012
Editora: Elsevier
Resumo: 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.
URI: http://hdl.handle.net/10400.22/6744
DOI: 10.1016/j.proeng.2012.09.258
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S1877705812043214
Aparece nas colecções:ISEP – BioMark – Artigos

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