Synchronized Improvements in the Protective and Bioactive Properties of Plasma-Electrolyzed Layers via Cellulose Microcrystalline

Abstract

This study reports synchronized improvements in the protective and bioactive properties of Ti-6Al-4V alloy through the formation of titania-based inorganic layers by considering the role of cellulose microcrystalline (CMC) additive into account. Acetatephosphate-based electrolyte with cellulose CMC is formulated for the first time to modify the porous structure of the oxide layers made via plasma electrolysis of Ti-6Al-4V alloy. The presence of CMC (0, 1, 2, 3 g/L) changed the characteristics of plasma discharges where porous oxide layers with different pore sizes and surface roughness were obtained. A rough oxide layer with large pores was found in the 3 g/L CMC, while a slightly smoother oxide layer with smaller pores was obtained in the case of 2 g/L CMC. The −OH groups in CMC would facilitate the formation of an adsorption layer on the substrate surface, affecting the sparking behavior during plasma electrolysis (PE). Due to a synergy between controlled microstructure, surface roughness, and the insertion of bioactive phases, the coated samples in CMC-containing electrolytes displayed protective and bioactive properties simultaneously. Based on the obtained results, the samples coated in CMC-containing electrolytes can be used as safe implants to replace missing teeth in dental applications.

Micron/Submicron Scaled Hierarchical Ti Phosphate/Ti Oxide Hybrid Coating on 3D Printed Scaffolds for Improved Osteointegration

“…Like other studies, − the surface wettability was analyzed through the sessile drop method using a contact angle (CA) goniometer (TL101, Biolin Scientific AB). It is difficult to measure the contact angles of 3D printed scaffolds because of the complex and rough surfaces, and therefore, we used square Ti discs for CA measurement.…”

Enhanced Surface Properties of TiO2-Based Coatings via Stevia-Assisted Spark Suppression: Insights from Density Functional Theory Calculations

“…Researchers have increasingly utilized micro-arc oxidation (MAO) to fabricate inorganic coatings, aiming to enhance the corrosion resistance of metals and their alloys. This method, well known for its plasma-assisted oxidation technique, is utilized on various metallic and metallic alloy substrates [5][6][7]. The properties of the MAO coatings are impacted by myriad factors, ranging from intrinsic attributes like substrate and electrolyte composition to extrinsic variables such as oxidation duration, electrolyte temperature, and electrical parameters [8].…”

Effect of Hydrothermal and Vapor Thermal Treatments on Apatite Inductivity of Titanate Nanotubes on Anodized Ti–5Nb–5Mo Surface

“…Ti alloys are bioinert and do not bond well to bones after implantation into the human body [9]. In recent years, researchers have adopted multiple surface modification methods, including electrospinning [10], sol-gel [11], sputtering [12], electrophoretic deposition [13], plasma electrolytic oxidation (PEO) [14][15][16], and anodic oxidation [17] methods. Among them, the anodization method can produce ordered TiO 2 nanotubes, which have a large specific surface area [18].…”