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Citation: XIANG Hai-Yan, ZHANG Yan-Fang, QI Chao, MEI Fang, LI Wei-Guo. Preparation of Resveratrol Molecularly Imprinted Composite Membranes and Its Selectivity to the Template[J]. Chinese Journal of Applied Chemistry, ;2009, 26(7): 786-790. shu

Preparation of Resveratrol Molecularly Imprinted Composite Membranes and Its Selectivity to the Template

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a School of Pharmaceutical Sciences, Southern Medical University, Guangzhou;
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b Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, Central China Normal University, Wuhan 430079;
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c College of Life Science, Central China Normal University, Wuhan

Corresponding author: LI Wei-Guo,
Received Date: 5 July 2008
Available Online: 30 October 2008
Fund Project: 国家自然科学基金(20702017) (20702017)广东省自然科学基金(06301187) (06301187)湖北省自然科学基金(2007ABA141)资助项目 (2007ABA141)

Resveratrol(RES) imprinted composite membranes,with polyvinylidene fluoride microporous membrane as supporting membrane,were synthesized via in situ polymerization by thermal initiation,using acrylamide(AM) as the functional monomer and ethyleneglycol dimethacrylate(EDMA) as the cross-linking agent.Scanning electron microscope(SEM) was used to visualize the surface of membranes.The binding ability and permeation selectivity were studied for RES and its analogues,polydatin(POL),bisphel A(BPA) and 2-naphthol.The results indicate that the imprinted membranes demonstrate satisfactory recognition capacity and selectivity towards the template molecules.Rebinding of RES was much higher than those of structurally similar compounds.The saturated binding capacity of the imprinted composite membrane for RES is about 1.72 μmol/g,nearly 3 times that of non-imprinted polymer membrane.2-Naphthol,which is smaller than the template molecule in size,permeates through the imprinted composite membrane preferentially.The permeation amounts of BPA and POL are both less than that of RES whether the molecular size is the same as or bigger than RES.RES permeates quickly through the imprinted membrane probably due to its compleme-ntary functional groups and shaping with the imprinted sites on the imprinted composite membrane.The RES transfer rate is increased through the imprinted composite membranes probably due to the larger amount of binding sites,compared with that through the non-imprinted one.
- resveratrol,
- molecularly imprinted composite membrane,
- selectivity,
- binding and permeation property
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