Hydrophilic nano-silica coating agents with platinum and diamond nanoparticles for denture base materials
| Autor: | Masayuki Shimada, Norihisa Akiba, Shunsuke Minakuchi, Masanao Inokoshi, Taro Yoshizaki |
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| Rok vydání: | 2017 |
| Předmět: |
Denture Bases
Materials science Scanning electron microscope chemistry.chemical_element 02 engineering and technology engineering.material Platinum nanoparticles Contact angle 03 medical and health sciences 0302 clinical medicine Coating Nano Composite material General Dentistry Platinum 030206 dentistry 021001 nanoscience & nanotechnology Silicon Dioxide chemistry Ceramics and Composites engineering Surface modification Nanoparticles Diamond 0210 nano-technology Layer (electronics) |
| Zdroj: | Dental materials journal. 36(3) |
| ISSN: | 1881-1361 |
| Popis: | Preventing microorganisms from adhering to the denture surface is important for ensuring the systemic health of elderly denture wearers. Silica coating agents provide high hydrophilicity but lack durability. This study investigated solutions to improve the durability of the coating layer, determine an appropriate solid content concentration of SiO2 in the silica coating agent, and evaluate the effect of adding platinum (Pt) and diamond nanoparticles (ND) to the agent. Five coating agents were prepared with different SiO2 concentrations with/without Pt and ND additives. The contact angle was measured, and the brush-wear test was performed. Scanning electron microscopy was used to investigate the silica coating layer. The appropriate concentration of SiO2 was found to be 0.5-0.75 wt%. The coating agents with additives showed significantly high hydrophilicity immediately after coating and after the brush-wear test. The coating agents with/without additives formed a durable coating layer even after the brush-wear test. |
| Databáze: | OpenAIRE |
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