The implanted ions are in a displac

The implanted ions are in a displacement or gap position in the matrix, and combine with the matrix atoms to form a modified layer. There is no clear interface between the modified layer and the matrix, so there is no risk of shedding. The use of ion implantation technology to inject Ag + or Cu2 + into the substrate surface for antibacterial modification is currently an active research area. Zhan Weiting and others used Ag / Zn antibacterial metal ion implantation on the surface of stainless steel to prepare antibacterial stainless steel. Antibacterial experiments have shown that Ag / Zn dual ion implantation can greatly improve the anti-infection of these materials against bacteria, and the antibacterial rate of Gram-negative and positive bacteria is> 99% and has broad antibacterial properties.