نتایج جستجو برای: high molecular weight polyethylene
تعداد نتایج: 2831907 فیلتر نتایج به سال:
With recent improvements to the properties of ultra-high molecular weight polyethylene (UHMWPE) used in joint replacements, prosthetic knee and hip longevity may extend beyond two decades. However, it is difficult and costly to replicate such a long in vivo lifetime using clinically relevant in vitro wear testing approaches such as walking gait joint simulators. We advance a wear test intermedi...
UNLABELLED Wear debris generated by ultra-high molecular weight polyethylene (UHMWPE) used in joint replacement devices has been of concern due to reductions of the implant longevity. Cold atmospheric plasma (CAP) has been used to improve the wear performance of UHMWPE. Our aim was to investigate the elastic and adhesive properties of rat mesenchymal stem cells (rMSCs), through AFM, after expos...
Despite advances in orthopedic materials, the development of drug-eluting bone and joint implants that can sustain the delivery of the drug and maintain the necessary mechanical strength in order to withstand loading has remained elusive. Here, we demonstrate that modifying the eccentricity of drug clusters and the percolation threshold in ultrahigh molecular weight polyethylene (UHMWPE) result...
This study presents the tribological properties, wear and friction, of ultra-high molecular weight polyethylene under conditions dry sliding Hank’s balanced salt solution lubrication. A pin-on-stainless steel disc apparatus was used for friction tests. Applied load were 38, 50, 88, 100, 138, 150N. Sliding speed 0.4, 0.5, 0.8, 1.0, 1.2 1.5 m/s. The results show that coefficient rate values decre...
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