Effect of positive bias on properties of chitosan coating prepared on micro-arc oxidation surface of Ti–6Al–4V alloy by electrophoretic deposition

Chitosan (CS) coatings produced via electrophoretic deposition (EPD) have been widely applied to improve the bioactivity of implants, but the low-coating adhesion strength and water electrolysis during electrophoresis weaken the resulting coatings. Accordingly, we initially fabricated porous micro-nano structures on the Ti–6Al–4V alloy by micro-arc oxidation (MAO) to serve as interlocking sites. Then a CS coating was prepared via EPD, during...