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Reference type: Journal
Authors: Karimian N, Zavar MHA, Chamsaz M, Turner APF, Tiwari A
Article Title: On/off-switchable electrochemical folic acid sensor based on molecularly imprinted polymer electrode.
Publication date: 2013
Journal: Electrochemistry Communications
Volume: 36
Page numbers: 92-95.
DOI: 10.1016/j.elecom.2013.09.014
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1388248113003573

Abstract: The combination of smart polymers with molecular imprinting offers a powerful tool to design more effective sensors and medical devices. In this study, a temperature sensitive amine-terminated poly(N-isopropylacrylamide) block with (N,N'-methylenebisacrylamide) cross-linker along with o-phenylenediamine was electropolymerised on a gold electrode in the presence of folic acid (FA) as template to produce an on/off-switchable molecularly imprinted polymer (MIP) affinity sensor for folic acid. Differential pulse voltammetry and cyclic voltammetry were used to characterise the FA-imprinted layer. Incubation of the MIP-modified electrode with FA resulted in a suppression of the ferro/ferricyanide redox process. The highest sensitivity of this temperature gated on/off-switchable folic acid sensor was achieved at 22 C. Such switchable affinity materials offer considerable potential for the design of highly selective and controllable biosensors and immunoassays
Template and target information: folic acid, FA
Author keywords: molecularly imprinted polymer, smart polymers, Temperature switchable electrode, Folic acid electrochemical sensor

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