Facile fabrication of Alkaline treatment and tantalum composite coating on SLA surface to increase antimicrobial and biocompatibility for titanium implant

In order to achieve both antibacterial and biological activity on the SLA (sandblasted large-grit acid-etched) surface, this study utilized alkali treatment and magnetron sputtering to create a layer of AT + Ta (alkali treatment and tantalum) composite coating on the SLA surface to enhance biocompatibility and antibacterial properties. The AT + Ta coating successfully maintained the hierarchical porous structure of alkali treatment while also improving antibacterial properties. The physical and chemical properties, antibacterial properties, and biocompatibility of the AT + Ta coating were systematically investigated. The results suggest that AT + Ta coating could be an effective approach for enhancing the surface properties of SLA implant.