生物被膜(BF)是指单一或者多种类群体细菌为了适应周围的环境,吸附于机体黏膜或者植入性生物医学材料表面并分泌多糖基质等多糖蛋白复合物体,而使细菌互相粘连,组成具有三维立体结构的膜样物。BF可对其膜内细菌起到有效保护,避免和减少了免疫机制对细菌的处置,但同时,膜 Biofilm (BF) refers to single or multiple groups of bacteria in order to adapt to the surrounding environment, adsorbed on the body mucosa or implantable biomedical material surface and secreted polysaccharide matrix and other polysaccharide protein complexes, leaving the bacteria adhesion to each other to form a three-dimensional Stereoscopic membrane sample. BF can effectively protect the membrane bacteria, to avoid and reduce the immune mechanism of bacterial disposal, but at the same time, the membrane