Int. J. Mol. Sci. 2011, 12(8), 4781-4804; doi:10.3390/ijms12084781
Article

Molecular Recognition Effects in Atomistic Models of Imprinted Polymers

Received: 10 June 2011; in revised form: 8 July 2011 / Accepted: 25 July 2011 / Published: 28 July 2011
(This article belongs to the Special Issue Molecular Imprinting Science and Technology)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: In this article we present a model for molecularly imprinted polymers, which considers both complexation processes in the pre-polymerization mixture and adsorption in the imprinted structures within a single consistent framework. As a case study we investigate MAA/EGDMA polymers imprinted with pyrazine and pyrimidine. A polymer imprinted with pyrazine shows substantial selectivity towards pyrazine over pyrimidine, thus exhibiting molecular recognition, whereas the pyrimidine imprinted structure shows no preferential adsorption of the template. Binding sites responsible for the molecular recognition of pyrazine involve one MAA molecule and one EGDMA molecule, forming associations with the two functional groups of the pyrazine molecule. Presence of these specific sites in the pyrazine imprinted system and lack of the analogous sites in the pyrimidine imprinted system is directly linked to the complexation processes in the pre-polymerization solution. These processes are quite different for pyrazine and pyrimidine as a result of both enthalpic and entropic effects.
Keywords: molecular recognition; imprinted polymer; simulation; adsorption; rebinding; Monte Carlo; dynamics
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MDPI and ACS Style

Dourado, E.M.A.; Herdes, C.; Tassel, P.R.V.; Sarkisov, L. Molecular Recognition Effects in Atomistic Models of Imprinted Polymers. Int. J. Mol. Sci. 2011, 12, 4781-4804.

AMA Style

Dourado EMA, Herdes C, Tassel PRV, Sarkisov L. Molecular Recognition Effects in Atomistic Models of Imprinted Polymers. International Journal of Molecular Sciences. 2011; 12(8):4781-4804.

Chicago/Turabian Style

Dourado, Eduardo M. A.; Herdes, Carmelo; Tassel, Paul R. Van; Sarkisov, Lev. 2011. "Molecular Recognition Effects in Atomistic Models of Imprinted Polymers." Int. J. Mol. Sci. 12, no. 8: 4781-4804.

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