表面印迹交替层状组装薄膜

在简要概述非常规交替层状组装这一进展后,重点总结了如何利用非常规交替层状组装以实现表面印迹膜的制备.模板分子与聚电解质在溶液中组装形成超分子复合物,然后以此超分子复合物为构筑基元,与感光性高分子,如重氮树脂,通过常规交替层状组装形成聚合物多层膜.利用聚合物多层膜之间的光化学反应形成稳定的多层膜,然后去除模板分子得到分子...

SURFACE MOLECULAR IMPRINTED LAYER-BY-LAYER FILM

This feature article is to summarize the methods of preparing surface molecular imprinted films utilizing unconventional layer-by-layer(LbL) assembly.Template molecules first preassembled with polyelectrolyte in solution to form supramolecular complex.Thus preassembled complex was used sequentially as a building block to construct LbL thin film with other photoreactive building block such as diazoresin at solid/liquid interface.Through photo cross-linking in between layers of the multilayer film following with template washing,the surface molecular imprinted LbL(SMILbL) film was generated.Diversified interactions have been introduced to fabricate the SMILbL film,and the selectivity of the SMILbL film could be effectively enhanced by the introduction of multivalent interaction.For practical application purposes,cation selective stamps and charge selective membranes have been demonstrated by combination of SMILbL film with corresponding microcontact printing and membrane separation technique,providing a new avenue for surface molecular imprinted materials.