Poly‐ether‐ether‐ketone (PEEK) is a biocompatible, high‐strength polymer with biomechanical properties similar to soft bone that has been proposed as an alternative titanium for orthopedic implants. Herein, micro‐CT imaging of 3D printed PEEK scaffold treated plasma immersion ion implantation (PIII) assess the degree osteoconduction relative identical untreated structure, by in scapula sheep, p...

Polyether ether ketone (PEEK) is a biocompatible alternative to metallic biomaterials because of its unique properties and biocompatibility. Its bioinert nature may lead implant failure from inadequate osseointegration. Therefore, this research aims develop the nSiO2 ceramic particle-reinforced PEEK (nSiO2@PEEK) polymer nanocomposite. The particle size nanoparticles was measured as 43.6 nm usin...

Poly-Ether-Ketone (PEEK) is a bioactive material capable of replacing traditional metal and ceramic components in biomedical applications but still lacks some strength biological propertices compared with natural bone. In this research, calcium hydroxyapatite (cHAp) reduced Graphene oxide (rGO) were combined PEEK, different lattice porose structures produced to improve interfaces biocompatibili...

Background: Surgery for bone tumors around the knee often involves extensive resection, making subsequent prosthetic reconstruction challenging. While carbon fiber-reinforced polyetheretherketone (CF-PEEK) has been widely used in orthopedic implants, its application tumor-type prosthesis is limited. This study aims to evaluate feasibility of using 30wt% and 60wt% (CF30-PEEK CF60-PEEK) as materi...

Appropriate preparation routes allow designing and improving the performances of ceramic-based functional composites. In this work, two powder-preparation methods enabled by cold sintering process are utilized to fabricate unique ZnO-based varistor The thermoplastic polymer, poly-ether-ether-ketone (PEEK), has been successfully integrated with ZnO form dense ZnO-PEEK With a dissolution method, ...

In the present study, friction and wear behaviors of Si3N4-hBN(Hexagonal boron nitride) ceramic composites against polyether-etherketone in artificial seawater were investigated, sliding speed was varied from 0.52 to 1.73 m/s study effect. It found that coefficients rates decreased with increase for Si3N4-hBN (with hBN content ranging 5% 20%) PEEK(Polyether-ether-ketone); pairs represented an u...

Social sites have become extremely popular among users but have they attracted equal attention from the research community? Are they good only for simple tasks, such as tagging and poking friends? Do they present any new or interesting research challenges? In this paper, we describe the insights we have obtained implementing CourseRank, a course evaluation and planning social system. We argue t...

In this study, we develop methods to identify verbal expressions in social media streams that refer to real-world activities. Using aggregate daily patterns of Foursquare checkins, our methods extract similar patterns from Twitter, extending the amount of available content while preserving high relevance. We devise and test several methods to extract such content, using timeseries and semantic ...

PEEK is being used increasingly often in seals, bushings, bearings, and other moving parts due to its excellent mechanical tribological properties. Herein, PEEK-based composites were prepared using PI as the organic filler h-BN nano-SiO2 particles inorganic fillers. There was significant improvement properties of at conditions above glass transition temperature; coefficient friction +20P/4B/4Si...

Adhesion of regenerating bone tissue to orthopaedic implants is critical their long-term success. Titanium has excess rigidity, interferes with imaging, and complicates radiation treatment. Poly(ether-ether-ketone) (PEEK) a preferred material, but limited by biological inertness. We show that plasma immersion ion implantation (PIII) imparts osteoadhesion on 3D printed PEEK using in vitro pull-o...