INTRODUCTION: Treatment of osteoarthritis and rheumatoid arthritis by total joint replacement generally shows a high success rate; however challenges remain, particularly in improving revision implant fixation. Prostheses with a roughened surface inserted without cement are popular worldwide, especially for younger more active patients. Early bone ongrowth is known to be critical to long-term f...

A low-destructive friction-induced nanofabrication method is proposed to produce three-dimensional nanostructures on a quartz surface. Without any template, nanofabrication can be achieved by low-destructive scanning on a target area and post-etching in a KOH solution. Various nanostructures, such as slopes, hierarchical stages and chessboard-like patterns, can be fabricated on the quartz surfa...

An etching technique for the determination of the metallic impurities distribution in silicon wafers has been developed. An area of 10 mmphi and 10 microm depth was etched by 100 microL of an etching solution with a HF and HNO3 mixture. The acid matrix was evaporated on the wafer surface by IR lamp illumination and vacuum exhaust. Metallic impurities remaining on the wafer surface were redissol...

The defect structure in relaxed (100) InGaAs/GaAs heteroepitaxial systems grown by molecular beam epitaxy is studied by selective electrochemical (anodic) etching. By incremental layer removal, we map the depth profile of the dislocation density. The density of dislocations is inversely proportional to the layer thickness and increases with misfit. The results are compared to theoretical models.