申请人:Marchant E. Roger
公开号:US20050008603A1
公开(公告)日:2005-01-13
Comblike, surfactant polymers for changing the surface properties of biomaterials are provided. Such surfactant polymers comprise a polymeric backbone of repeating monomeric units having functional groups for coupling with side chains, a plurality of hydrophobic side chains linked to said backbone via the functional groups, and a plurality of hydrophilic side chains linked to said backbone via the functional groups. The hydrophobic side chains comprise an alkyl group comprising from 2 to 18 methylene groups. The alkyl groups are linked to the polymeric backbone through ester linkages, secondary amine linkages, or, preferably, amide linkages. The hydrophilic side chain is selected from the group consisting of: a neutral oligosaccharide, which, preferably, has weight average molecular weight of less than 7000; a charged oligosaccharide, preferably a negatively charged oligosaccharide having a weight average molecular weight of less than 10,000; an oligopeptide of from about 3 to about 30 amino acid residues, said oligopeptide having an amino acid sequence which interacts with protein receptors on the surface of cells; and combinations thereof. Methods of making the surfactant polymers and using the surfactant polymers to alter the surface properties of a biomaterial are also provided.
提供了用于改变生物材料表面性质的类似梳子的表面活性聚合物。这种表面活性聚合物包括具有用于与侧链偶联的功能基团的重复单体单位的聚合骨架,通过功能基团连接到该骨架的多个疏水侧链,以及通过功能基团连接到该骨架的多个亲水侧链。疏水侧链包括包含从2到18个亚甲基团的烷基团。烷基团通过酯键、次胺键或者更好地,酰胺键连接到聚合骨架上。亲水侧链选自以下组合中的一种:中性寡糖,最好的情况下,其重均分子量小于7000;带电寡糖,最好是重均分子量小于10000的带负电寡糖;由大约3到大约30个氨基酸残基组成的寡肽,该寡肽具有与细胞表面蛋白受体相互作用的氨基酸序列;以及它们的组合。还提供了制备表面活性聚合物和使用表面活性聚合物改变生物材料表面性质的方法。