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Reference type: Journal
Authors: Sergeyeva TA, Panasyuk-Delaney TL, Piletska OV, Piletsky SA, El'Skaya AV
Article Title: Capacitive sensor for environmental monitoring based on thin films of molecularly imprinted polymers. Computational modeling for optimization of the polymers-biomimics composition.
Publication date: 2006
Journal: Ukrainskii Biokhimicheskii Zhurnal
Volume: 78
Issue: (2)
Page numbers: 121-130.
Alternative URL: http://ubj.biochemistry.org.ua/index.php?content=archive&article=35

Abstract: A capacitive sensor for environmental monitoring based on thin films of desmetryn-selective molecularly imprinted polymer (MIP) was developed. The method of modification of gold electrodes with the thin film of herbicide-selective MIP using the grafting polymerization approach was developed. The method of computational modeling was used to optimize the composition of desmetryn-selective MIPs. It was shown that 2-acrylamido-2- methyl-1-propan-sulfonic acid is the optimal functional monomer for desmetryn. Formation of synthetic binding sites in MIPs was demonstrated to be determined by the binding energy between the template and functional monomers as well as the number of functional groups taking part in the recognition of the template molecule. Electrochemical processes occurring at the MIP-modified electrode were analyzed. The detection limit for desmetryn comprised 100 nM. High selectivity of the capacitive sensor towards structural analogues of desmetryn as well as high operational and storage stabilities was demonstrated
Template and target information: desmetryn
Author keywords: capacitive sensor, grafting polymerization, molecular imprinting, molecularly imprinted polymer, triazine herbicides


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