Wear-Resistant Ultrahigh-Molecular-Weight Polyethylene-Based Nano- and Microcomposites for Implants

Wear of Ultra High Molecular Weight Polyethylene

Graphene Oxide/Ultrahigh Molecular Weight Polyethylene Composites: Ball-Milling Preparation Mechanical Performance and Biocompatibility Effects

Graphene oxide (GO)/ultrahigh-molecular-weight polyethylene (UHMWPE) composites were successfully fabricated through the mechanical ball milling technology and processed according to the hot pressing method. The fractured microstructure features and mechanical properties of the GO/UHMWPE composites were investigated by Scanning electron microscope (SEM) and universal testing machine, respective...

Surfactant Effects on Structure and Mechanical Properties of Ultrahigh-Molecular-Weight Polyethylene/Layered Silicate Composites.

In this study, the reinforcement of ultrahigh-molecular-weight polyethylene (UHMWPE) with biotite was investigated. The biotite filler was mechanically activated with different dry surfactants to improve its compatibility with UHMWPE and decrease agglomeration among biotite particles. Alkyldimethylbenzylammonium chloride (ADBAC) and cetyltrimethylammonium bromide (CTAB) were selected as cationi...

Graphene nanoplatelet-induced strengthening of ultrahigh molecular weight polyethylene and biocompatibility in vitro.

Graphene nanoplatelets (GNPs) are added as reinforcement to ultrahigh molecular weight polyethylene (UHMWPE) with an intended application for orthopedic implants. Electrostatic spraying is established as a potential fabrication method for synthesizing large-scale UHMWPE-GNP composite films. At a low concentration of 0.1 wt % GNP, the composite film shows highest improvement in fracture toughnes...

Comparison of periprosthetic tissue digestion methods for ultra-high molecular weight polyethylene wear debris extraction.

There is considerable interest in characterization of wear debris from polyethylene (UHMWPE) bearing components used in total joint replacement. To isolate UHMWPE wear debris, tissue samples must be excised from regions adjacent to revised UHMWPE implant components, followed by exposure to one of many available tissue digestion methods. Numerous studies demonstrate successful digestion, but the...