Adsorption and recognition characteristics of surface molecularly imprinted polymethacrylic acid/silica toward genistein

作者：Zhang, Yanyan^*; Gao, Baojiao; An, Fuqiang; Xu, Zeqing; Zhang, Tingting

来源：Journal of Chromatography A, 2014, 1359: 26-34.

DOI：10.1016/j.chroma.2014.07.025

• Flavonoid
• Surface molecular imprinting
• Hydrogen bond
• Molecular recognition

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 0,36 mmol g(-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.

• 出版日期2014-9-12
• 单位中北大学