Exploration on anticorrosive, antibacterial and osteocompatibility properties of samarium/europium substituted hydroxyapatite coating on surgical grade stainless steel for biomedical applications

Abstract

In present work, samarium/europium substituted hydroxyapatite (Sm/Eu-HAP) coating on 316L stainless steel has been carried out by electrodeposition method. The surface characteristics of the developed coating were assessed by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), High resolution scanning electron microscopy (HRSEM) and energy dispersive X-ray analysis. The special effects of Sm/Eu-HAP coating on anticorrosion behaviour of 316L stainless steel were also studied using electrochemical analysis in the Ringers solution. The antibacterial activity and in vitro live/dead assay of Sm/Eu-HAP coating were investigated. As a result of these examinations, revealed that Sm/Eu-HAP coating on 316L stainless steel enhanced the corrosion resistance performance and significantly improved the bioactivity. Thus, Sm/Eu-HAP coating can play an important role in biomedical applications.