申请人:Coady Daniel J.
公开号:US20120251607A1
公开(公告)日:2012-10-04
A composition of matter comprises a cationic polymer comprising a polycarbonate chain fragment, the polycarbonate chain fragment comprising a repeat unit comprising a side chain moiety containing a quaternary amine group; and a non-charged polymer comprising a polyester chain segment and a poly(alkylene oxide) chain segment; wherein i) the cationic polymer and the non-charged polymer are amphiphilic and biocompatible, ii) the cationic polymer and the non-charged polymer form a mixed complex by non-covalent interactions in water, and iii) the mixed complex is a more effective antimicrobial agent against at least a Gram-negative microbe compared to the cationic polymer and the non-charged polymer alone when tested using otherwise identical conditions.
一种物质的组成包括阳离子聚合物,该阳离子聚合物包括聚碳酸酯链片段,所述聚碳酸酯链片段包括一个重复单元,所述重复单元包括一个含季铵胺基团的侧链部分;以及一种非带电聚合物,包括聚酯链段和聚(烷基氧化物)链段;其中i)所述阳离子聚合物和非带电聚合物是两性且生物相容的,ii)所述阳离子聚合物和非带电聚合物在水中通过非共价相互作用形成混合复合物,iii)与单独使用时,所述混合复合物在至少一种革兰氏阴性微生物的抗菌剂测试中比阳离子聚合物和非带电聚合物更有效。