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Abstract: Molecularly imprinted polymers are being proposed for the development of novel biorecognition elements for active components. In this study, an imprinted chitosan coated silica nanoparticles (I-CS@SiO2) polymer was prepared by a simple procedure, in which, naringin (NG) with antioxidant activity, acted as a template, silica as a matrix and CS as a functional polymer. The binding properties were discussed by the equilibrium binding experiment method. Experiments show that the adsorption characteristics of I-CS@SiO2 are better than that of nonimprinted polymer. It exhibited high selectivity for NG when compared with the nonimprinted polymer, with an imprinting factor α of 1.74. Scatchard analysis of the I-CS@SiO2 indicated that there was a class of binding sites during the I-CS@SiO2 recognizing NG: The dissociation constant of KD is 0.016 mmol L-1, the maximum apparent binding capacity of Bmax is 6.56 μmol g-1. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40491
Template and target information: naringin, NG
Author keywords: biopolymers and renewable polymers, molecular recognition, separation techniques