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Reference type: Journal
Authors: Ruela ALM, Figueiredo EC, Pereira GR
Article Title: Molecularly imprinted polymers as nicotine transdermal delivery systems.
Publication date: 2014
Journal: Chemical Engineering Journal
Volume: 248
Page numbers: 1-8.
DOI: 10.1016/j.cej.2013.12.106
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1385894714003180

Abstract: The aim of the present study was to prepare molecularly imprinted polymers (MIPs) with nicotine as the template drug and to evaluate the feasibility of these materials as excipients for the controlled transdermal delivery of nicotine. To achieve this goal, MIPs were synthesised by a free radical polymerisation method using methacrylic acid as the monomer and ethylene glycol dimethacrylate as the cross-linker. Polymer particles were prepared and included in transdermal systems with vehicles of different polarities. Characterisation studies employed the appropriate techniques, such as scanning electron microscopy, infrared spectroscopy and thermal analysis, to study the morphology of the particles, drug-polymer interactions and compatibility. Based on the results, in the MIP particles, non-covalent drug-polymer interactions were established by nicotine adsorption, mainly in non-polar vehicles. The drug release kinetics was fitted to Higuchi model, indicating drug diffusion from polymer matrix. Additionally, the diffusion of the drug from the polymer matrix can be modified by selective sites in the imprinted polymer carrier. Therefore, MIPs can be considered as suitable candidates for the controlled transdermal administration of nicotine
Template and target information: nicotine
Author keywords: molecularly imprinted polymer (MIP), Drug delivery system, nicotine, Transdermal delivery


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