Water‐compatible imprinted polymers based on CS@SiO2 particles for selective recognition of naringin |
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| Authors: | Xiuling Ma Zhangjing Zhang Ying Zheng Zhen Chen Shengchang Xiang |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, China;2. College of Life and Environmental Sciences, Minzu University of China, Beijing, China |
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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. |
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| Keywords: | biopolymers and renewable polymers molecular recognition separation techniques |
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