Water‐compatible imprinted polymers based on CS@SiO2 particles for selective recognition of naringin. Issue 13 (6th February 2014) - Ma, Xiuling
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.