Continuous Hyaluronic Acid Supply by a UHMWPE/PEEK Interlocking Scaffold for Metatarsophalangeal Joint Prosthesis Lubricating Applications.

Wear is one of the main causes of prothesis failure in hemiarthroplasty of small joints such as the metatarsophalangeal joint, to which lubrication improvement is a promising solution. Inspired by the natural joint structure and lubrication mechanisms, we developed a novel composite strategy for metatarsophalangeal joint hemiarthroplasty. An ultrahigh-molecular-weight polyethylene (UHMWPE) lubrication layer is interlocked within a 3D-printed poly(ether ether ketone) (PEEK) scaffold, and hyaluronic acid (HA) is introduced for hydrophilic modification of the UHMWPE matrix.

Study on the Commercial Metalized Plastic Current Collector PET-Cu and PP-Cu Toward High-Energy Lithium-Ion Battery.

Commercial metalized plastic current collector (MPCC) is receiving widespread attention from the business and academic communities, due to its properties of excellent electrical conductivity and low mass density. However, the application of MPCC on the side of copper is rarely studied. Herein, sandwich-like polyethylene terephthalate-based (PET) and polypropylene-based (PP) copper (Cu) current collectors via magnetron sputtering and electroplating are fabricated.

Performance of Short Fiber Interlayered Reinforcement Thermoplastic Resin in Additive Manufacturing.

To further improve the mechanical properties of thermoplastic resin in additive manufacturing (AM), this paper presents a novel method to directly and quantitatively place the short fibers (SFs) between two printing process of resin layers. The printed composite parts with SFs between the layers was reinforced. The effects of single-layer fiber content, multi-layer fiber content and the length of fibers on the mechanical properties of printed specimens were studied.