Surface functionalization of PEEK with silicon nitride
| Autor: | Elia Marin, Tetsuya Adachi, Osam Mazda, Wenliang Zhu, Eriko Ohgitani, Francesco Boschetto, Giuseppe Pezzotti, Satoshi Horiguchi, Bryan J. McEntire, Matteo Zanocco, B. Sonny Bal |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Polymers Surface Properties Sodium 0206 medical engineering Biomedical Engineering chemistry.chemical_element Bioengineering Biocompatible Materials 02 engineering and technology Sodium Chloride Biomaterials chemistry.chemical_compound Benzophenones Osteogenesis Cell Line Tumor Materials Testing Peek Surface roughness Humans Porosity Cell Proliferation Bacteria Silicon Compounds Prostheses and Implants 021001 nanoscience & nanotechnology 020601 biomedical engineering Anti-Bacterial Agents chemistry Chemical engineering Silicon nitride Surface modification Leaching (metallurgy) 0210 nano-technology |
| Zdroj: | Biomedical materials (Bristol, England). 16(1) |
| ISSN: | 1748-605X |
| Popis: | Surface roughness, bioactivity, and antibacterial properties are desirable in skeletal implants. We hot-pressed a mix of particulate sodium chloride (NaCl) salt and silicon nitride (β-Si3N4) onto the surface of bulk PEEK. NaCl grains were removed by leaching in water, resulting in a porous PEEK surface embedded with sim15 vol% β-Si3N4 particles. This functionalized surface showed the osteogenic and antibacterial properties previously reported in bulk silicon nitride implants. Surface enhancement of PEEK with β-Si3N4 could improve the performance of spinal fusion cages, by facilitating arthrodesis and resisting bacteria. |
| Databáze: | OpenAIRE |
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