School of Electrical, Electronic and Mechanical Engineering Nano-particles and nano-structured surfaces in biomedical engineering. Dr. Kenneth Stanton

SEEME: Biomedical engineering Development and/or design of materials, devices and manufacturing routes for implantable biomedical components including: –Orthopaedic joints –Stents –Dentistry –Etc Study of mechanical properties of biomaterials and biomedical devices. Biomechanics of bone, joints, soft-tissue etc. Bio-tribology and wear.

Nano-particles evolved during wear of orthopaedic joints With each step there are 5x10 5 particles released Particles are found disseminated to organs around the body There is little understanding about the long-term biological effects of nanoparticles of the relevant materials –Effects of morphology –Fresh surfaces –Metal nanoparticle stability

Synthesis of nano-crystalline bioceramics and glass-ceramics HA, -TCP: –Bi-phasic calcium phosphates Controlled resorbability in-vivo –Preparation of nano-structured surfaces from bioceramics using EPD from wet-precipitation. Apatitic glass-ceramics

Preparation of nano-structured metal-oxide surfaces using RF-magnetron sputtering Effect of deposition pressure on microstructure of TiO x coating 4 x mbar 1 x mbar Courtesy of Denis Dowling