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Abstract: A responsive antioxidant system constituted from quercetin inserted into poly[N,N-dimethylacrylamide-co-3, 9-divinyl-2, 4, 8, 10-tetraoxaspiro (5.5) undecane] through a semi-imprinted procedure was evaluated. A continuous magnetic field (MF) was used during supramolecular structure preparation. The strength of coupling quercetin was evaluated based on the template release from the polymeric matrices, as well as to what extent quercetin reloaded into the polymer matrix in prescribed conditions - with or without the MF presence - shows antioxidant properties. The antioxidant activity of the complex was investigated by radical inhibitor activity method using 2, 2-diphenyl-l-picrylhydrazyl. The evaluation of the homogeneity distribution of the quercetin inside the polymeric network was made by near-infrared chemical imaging and correspondingly statistical analysis. For in vivo biocompatibility investigation, granuloma test in rats was performed correlated with the activity of enzymes involved in oxidative stress as well as immunologic effects of tested supramolecular complexes that include quercetin as therapeutic agent. © 2014 Wiley Periodicals, Inc. and the American Pharmacists Association J Pharm Sci 103:2338 - 2346, 2014
Template and target information: quercetin
Author keywords: poly[N,N-dimethyl-acrylamide-co-3,9-divinyl-2,4,8,10-tetraoxaspiro (5.5) undecane], gel, quercetin, antioxidant, in vivo test, near-infrared spectroscopy, inclusion compounds, polymeric drug carrier, morphology