Electrophoretic Deposition of Lawsone Loaded Nanoscale Silicate Glass /Chitosan Composite on PEEK/BG Layers

• Published in: ECS transactions Vol. 82; no. 1; pp. 45 - 50
• Main Authors: Ur Rehman, Muhammad Atiq, Bastan, Fatih Erdem, Nawaz, Qaisar, Boccaccini, Aldo R.
• Format: Journal Article
• Language: English
• Published: The Electrochemical Society, Inc 23.01.2018
• ISSN: 1938-5862; 1938-6737; 1938-6737; 1938-5862
• DOI: 10.1149/08201.0045ecst

Composite layers based on chitosan containing silicate glass nanoparticles (SGN) and lawsone were deposited by electrophoretic deposition (EPD) process on PEEK/bioactive glass (BG) layers (deposited by electrophoretic deposition on 316L stainless steel). Initially, the EPD process of chitosan/SGN/lawsone coatings was optimized on stainless steel in terms of suspension stability and coating characteristics. Subsequently, the optimized EPD parameters were used to produce chitosan/SGN/lawsone coatings on the PEEK/BG layers. The produced coatings were characterized in-terms of composition, microstructure, wettability and in-vitro bioactivity. The deposition of chitosan/SGN on PEEK/BG layer was confirmed qualitatively by Scanning Electron Microscopy (SEM) and Fourier Transform Infrared spectroscopy (FTIR). The multilayer coatings were fairly homogeneous having a coating thickness of 90-100 µm. Furthermore, multilayer coatings showed convenient wettability for the initial protein attachment and formed apatite crystals upon immersion in SBF, which anticipates the bone bonding ability of the coatings.