In order to research new sensitive materials, a mathematic piezoresistivity model of the conductive composites filled by carbon black particles is presented on the basis of general effective medium (GEM) theory .

The stability of carbon black particles in the surfactant-alcohol solutions have been researched.

Objective To observe and compare the expression of inducible nitric oxide synthase(iNOS) and peroxynitrite anion(ONOO~-)induced by alumina and ultra-high-mdeunlar-weight polyethylene wear particles and to investigate the mechanism of the periprosthetic osteolysis induced by wear debris during aseptic loosening.

Object To observe the biological response to the wear debris from the total hip prosthesis of Magnesium Silicon Jade (MSJ) in vivo, to compare the capability of inducing osteolysis between the particles of MSJ and the particles of ultra-high molecular weight polyethylene (UHMWPE), and to explore the reasons of loosening of the prosthesis of MSJ.

Osteolysis and loosening of artificial joints caused by polyethylene wear debris have prompted renewed interest in alternative bearing materials for hip prosthesis designs.

Experimental study on a method of in vitro preparation and seperation for metallic prosthesis wear particles;

Effects of 3 kinds of wear particles on primary cultured human osteoblasts;