Coating Nano Hydroxyapatite Based on Rice Snail Shells (Pila ampullacea) /Chitosan/Hyaluronic Acid on Titanium (Ti-6Al-4V) Using Electrophoretic Deposition Method for Biomedical Applications

Abstract

The demand for implants in Indonesia is expected to increase to US$ 36.67 million by 2026 at a CAGR of 15.2%. Most of the implants used are Ti6Al4V due to its mechanical properties and biocompatibility. However, these implants do not adhere and can leach aluminum and vanadium ions into the body, which accelerates implant failure. Therefore, in this research, the coating with Hydroxyapatite based on rice snail shell/Chitosan/Hyaluronic Acid (HAp/CS/HA) using the Electrophoretic Deposition (EPD) method was conducted. HAp (Ca 10 (PO 4 ) 6 (OH) 2 ) is a bioactive ceramic material that can improve the corrosion resistance of implants with synthetic results HAp shows good affinity, so it has the potential to be used as a coating. Hyaluronic Acid (HA) and Chitosan (CS) are biocompatible compounds that have the potential as corrosion resistance coating materials. Therefore, this study aims to investigate the possibility of developing bioactivity and corrosion-resistant coatings. The HAp synthesis process was carried out by precipitation method using 1.3 M H3PO4. The EPD process was carried out at a voltage of 40V with a carbon anode for 2, 4, 6, and 8 minutes at Hydroxyapatite concentrations of 10%, 20%, 30%, and 40% w/v. The results showed strong adhesion with slow bioactivity behavior and corrosion rate in the range of 0.006% - 0.038%.