请朗读并录音:英文资料215页第二段 Specifically for biomaterials, the first event that occurs when an implant is placed in the body is that water molecules adhere to the surface (in different ways for different surfaces) followed by the formation of a layer of proteins from bodily fluids. Next, cells of the body explore the adsorbed proteins and may subsequently attach to specific binding sites exposed in these proteins (Fig. 8.1). The types of cells that recognize the adsorbed proteins and attach to the implant surface both initially and chronically determine the fate of the implant. Will the implant successfully integrate into the juxtaposed tissues or will the body wall it off to exclude it from interacting as much as possible?