AVS 64th International Symposium & Exhibition
    Advanced Surface Engineering Division Thursday Sessions
       Session SE+PS+SS-ThM

Invited Paper SE+PS+SS-ThM10
Plasma Surface Engineering of Biomaterials

Thursday, November 2, 2017, 11:00 am, Room 11

Session: Plasma-assisted Surface Modification and Deposition Processes
Presenter: Paul K. Chu, City University of Hong Kong, Hong Kong
Correspondent: Click to Email
The chemical and biological interactions between biomaterials and biological tissues depend on the surface properties of the biomaterials and associated biological responses. However, many types of biomaterials that possess favorable bulk properties such as hardness, strength, robustness may not perform the pre-designed biological functions and so surface modification is frequently performed to enhance the biological and chemical properties. Plasma-based technology offers the unique capability that selected surface properties can be modified to address specific biological requirements while the desirable bulk properties of the materials such as those mentioned above are preserved. In particular, plasma immersion ion implantation and deposition (PIII&D) is one of the widely used plasma-based surface techniques suitable for biomaterials and biomedical devices. Being a non-line-of-sight technique, it is especially suitable for biomedical devices with a complex shape like dental and orthopedic implants, scoliosis correction rods, cardiovascular stents, and artificial heart valves. In this invited presentation, recent research performed in the Plasma Laboratory of City University of Hong Kong related to plasma treatment of biomaterials and biomedical devices will be described. Examples include biocompatibility of nanostructured surfaces and coatings, biocompatibility of biodegradable materials, bacterial resistance, as well as osseointegration and osteogenesis.