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Ti-10Cu sintered alloy has shown strong antibacterial properties against S.aureus and E.coli and good cell biocompatibility in vitro and in vivo,displaying potential application as an implant material.Surface treatments are always applied to implants to improve the surface biocompatibility.In this paper,several typically used surface treatments,including sandblasting(SB),sandblasted and large-grits acid etching(SLA),and alkaline heat treatment(AH)were chosen to modify the Ti-10Cu.