Ag-containing bioactive glass added PEEK coatings by electrophoretic deposition


Investigator: Steffen Fastner (Master student) Steffen Fastner


Supervisor: Qaisar Nawaz, Prof. Dr.-Ing. habil. Aldo R. Boccaccini

With increasing drug (antibiotic) resistance, infections are a pressing and growing issue in medicine, particularly in operations involving implants. Silver, being highly toxic to microorganisms, but having a relatively low toxicity to human tissue, could solve this issue. The main object of this research is to create multifunctional coatings combining Ag doped mesoporous bioactive glass nanoparticles (MBGNs)and PEEK on metals. Electrophoretic Deposition (EPD) will be used as a coating technique to create layers of a high microstructural homogeneity while controlling the thickness of the coating [1, 2]. The coatings will be compared to previously developed Radio Frequency (RF) sputtered AG/SiO2 layers on BG/PEEK coatings [2] in terms of antibacterial behavior, cytotoxicity and bioactivity.

[1] Rehman, M. A. U., Electrophoretic Deposition of Lawsone Loaded Nanoscale Silicate Glass /Chitosan Composite on PEEK/BG Layers, ECS Transactions 82(1) (2018) 45-50.

[2] Rehman, M. A. U., et al., Antibacterial and Bioactive Coatings Based on Radio Frequency Co-Sputtering of Silver Nanocluster-Silica Coatings on PEEK/Bioactive Glass Layers Obtained by Electrophoretic Deposition, ACS Appl. Mater. Interfaces, 9 (2017) 32489–32497.