Enhancement of Surface Biological / Biomedical Properties of Medical Polymers by Medium-Energy Plasma Processes

Project: Research

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In this project, the systematic study of the effects of medium-energy (several to tens of keV) plasma immersion ion implantation and deposition (PIII&D) on the biological and surface properties of important medical polymers such as polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), polyurethane (PU), polymethylmethacrylate (PMMA) and polyethylene terephthalate (PET) is proposed. The interactions between various types of medium-energy plasma ions and these polymers as well as the subsequent effects will be investigated. The aim is to identify the suitable parameters, processes and conditions that will benefit the biological properties of these materials in two important areas:antibacterial ability and disinfection effects; andbioactivity and biocompatibility of polymers including tissue and blood compatibility.The results will be compared to those of conventional methods such as low-energy plasma and wet chemical treatments. The knowledge gained in this project is expected to expand the scope of plasma treatment in biomedical engineering and lead to new clinical and commercial applications.


Project number9041122
Grant typeGRF
Effective start/end date1/01/078/02/10