Electrochemical sensing with electrodes modified with molecularly imprinted polymer films |
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Authors: | M?C?Blanco-López S?Gutiérrez-Fernández M?J?Lobo-Casta?ón A?J?Miranda-Ordieres Email author" target="_blank">P?Tu?ón-BlancoEmail author |
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Institution: | Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Spain. |
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Abstract: | This article summarises our work on the development of voltammetric sensors based on molecularly imprinted polymers. Several recognition elements and integration strategies were used:1.membranes electropolymerised at the electrode surface; 2.casting of polymeric membranes by drop-coating a solution of pre-formed polymer (polyphosphazene) and template in a low-boiling-point solvent on to the electrode surface; 3.preparation of composite membranes containing conductive material (graphite or carbon black), acrylic-type molecularly imprinted polymers (small particle size), and PVC as binder; and 4.in-situ polymerisation of a thin layer of acrylic imprinted polymer deposited on the electrode surface by spin coating.All the options evaluated offer the possibility of controlling electrode characteristics such as hydrophobic/hydrophilic character, permeability, or film thickness, which are essential for obtaining good sensor performance. |
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Keywords: | Molecularly imprinted polymers Voltammetric sensors Biomimetics |
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