The release of nickel from nickel-titanium (NiTi) is strongly reduced by a sub-micrometer thin layer of calcium phosphate deposited by rf-magnetron sputtering
| Parent link: | Journal of Materials Science: Materials in Medicine.— , 1990- Vol. 21, iss. 4.— 2010.— [P. 1233-1239] |
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| Other Authors: | , , , , , |
| Summary: | Title screen Thin calcium phosphate coatings were deposited on NiTi substrates (plates) by rf-magnetron sputtering. The release of nickel upon immersion in water or in saline solution (0.9% NaCl in water) was measured by atomic absorption spectroscopy (AAS) for 42 days. The coating was analyzed before and after immersion by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). After an initial burst during the first 7 days that was observed for all samples, the rate of nickel release decreased 0.4-0.5 ng cm−2 d−1 for a 0.5 μm-thick calcium phosphate coating (deposited at 290 W). This was much less than the release from uncoated NiTi (3.4-4.4 ng cm−2 d−1). Notably, the nickel release rate was not significantly different in pure water and in aqueous saline solution. Режим доступа: по договору с организацией-держателем ресурса |
| Published: |
2010
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/s10856-010-3989-5 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=647522 |