申请人:Suzhou DOBIOM Medical Technology Co., Ltd.
公开号:US11001688B2
公开(公告)日:2021-05-11
Disclosed is an antimicrobial silicone rubber, functional macromolecules being chemically bonded to the surface of the silicone rubber and containing vinyl or ethynyl, and the functional macromolecules being chemically bonded to the surface of the silicone rubber by means of vinyl or ethynyl; the functional macromolecules comprise polyamino acid macromolecules of which the molecular structure is as shown in (I) and (II). The antimicrobial silicone rubber of the present invention has polyamino acid macromolecules chemically bonded to the surface of the silicone rubber and serves an antimicrobial function by means of the interaction of polyamino acid macromolecules with a negatively charged cell membrane in bacteria, providing a persistent antimicrobial effect and unlikely causing bacteria to develop any drug resistance; moreover, polyamino acid macromolecules bind to the surface of the silicone rubber by means of chemical bonding, preventing macromolecules from being precipitated and entering a cell, providing good biocompatibility.
本发明公开了一种抗菌硅橡胶,功能性大分子与硅橡胶表面化学键合,含有乙烯基或乙炔基,功能性大分子通过乙烯基或乙炔基与硅橡胶表面化学键合;功能性大分子包括聚氨基酸大分子,其分子结构如(I)和(II)所示。本发明的抗菌硅橡胶将聚氨基酸大分子化学键合在硅橡胶表面,通过聚氨基酸大分子与细菌中带负电荷的细胞膜的相互作用来实现抗菌功能,提供持久的抗菌效果,并且不会使细菌产生抗药性;此外,聚氨基酸大分子通过化学键结合到硅橡胶表面,防止大分子沉淀和进入细胞,具有良好的生物相容性。