title: Adsorption and recognition characteristics of surface molecularly imprinted polymethacrylic acid/silica toward genistein.
abstract: In this paper, on the basis of surface-initiated graft polymerization, a new surface molecular imprinting technique is established by molecular design. And molecularly imprinted polymer MIP-PMAA/SiO2 is successfully prepared with genistein as template. The adsorption and recognition characteristics of MIP-PMAA/SiO2 for genistein are studied in depth by using static method, dynamic method and competitive adsorption experiment. The experimental results show that MIP-PMAA/SiO2 possesses very strong adsorption affinity and specific recognition for genistein. The saturated adsorption capacity could reach to 0.36mmolg(-1). The selectivity coefficients relative to quercetin and rutin are 5.4 and 11.8, respectively. Besides, MIP-PMAA/SiO2 is regenerated easily and exhibits excellent reusability.
authors.affiliation: Department of Chemical Engineering, North University of China, Taiyuan 030051, People's Republic of China. Electronic address: zhangyanqtwl@163.com.
authors.forename: Yanyan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Chemical Engineering, North University of China, Taiyuan 030051, People's Republic of China.
authors.forename: Baojiao
authors.initials: B
authors.lastname: Gao
authors.affiliation: Department of Chemical Engineering, North University of China, Taiyuan 030051, People's Republic of China.
authors.forename: Fuqiang
authors.initials: F
authors.lastname: An
authors.affiliation: Department of Chemical Engineering, North University of China, Taiyuan 030051, People's Republic of China.
authors.forename: Zeqing
authors.initials: Z
authors.lastname: Xu
authors.affiliation: Department of Chemical Engineering, North University of China, Taiyuan 030051, People's Republic of China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Zhang
mesh_terms: D000327:Adsorption; D019833:Genistein / Q000737:chemistry* / Q000302:isolation & purification; D054802:Molecular Imprinting / Q000379:methods*; D011109:Polymethacrylic Acids / Q000138:chemical synthesis / Q000737:chemistry*; D058428:Silica Gel / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D011109:Polymethacrylic Acids; C030613:polymethacrylic acid; D058428:Silica Gel; D019833:Genistein
keywords: Flavonoid; Hydrogen bond; Molecular recognition; Surface molecular imprinting