by Keyword: Bacteria repellency
Witzdam, L, Garay-Sarmiento, M, Gagliardi, M, Meurer, YL, Rutsch, Y, Englert, J, Philipsen, S, Janem, A, Alsheghri, R, Jakob, F, Molin, DGM, Schwaneberg, U, van den Akker, NMS, Rodriguez-Emmenegger, C, (2023). Brush-Like Coatings Provide a Cloak of Invisibility to Titanium Implants Macromolecular Bioscience , e2300434 
Orthopedic implants such as knee and hip implants are one of the most important types of medical devices. Currently, the surface of the most advanced implants consists of titanium or titanium-alloys with high porosity at the bone-contacting surface leading to superior mechanical properties, excellent biocompatibility, and the capability of inducing osseointegration. However, the increased surface area of porous titanium provides a nidus for bacteria colonization leading to implant-related infections, one of the main reasons for implant failure. Here, two readily applicable titanium-coatings based on hydrophilic carboxybetaine polymers that turn the surface stealth thereby preventing bacterial adhesion and colonization are developed. These coatings are biocompatible, do not affect cell functionality, exhibit great antifouling properties, and do not cause additional inflammation during the healing process. In this way, the coatings can prevent implant-related infections, while at the same time being completely innocuous to its biological environment. Thus, these coating strategies are a promising route to enhance the biocompatibility of orthopedic implants and have a high potential for clinical use, while being easy to implement in the implant manufacturing process.© 2023 The Authors. Macromolecular Bioscience published by Wiley-VCH GmbH.
JTD Keywords: bacteria repellency, biocompatibility, blood-plasma, brushes, stealth coatings, surface, titanium implants, Antifouling surfaces, Bacteria repellency, Biocompatibility, Brushes, Polymer brushes, Stealth coatings, Titanium implants
