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- Title
Hydrothermal calcium modification of 316L stainless steel and its apatite forming ability in simulated body fluid.
- Authors
Alireza VALANEZAHAD; Kunio ISHIKAWA; Kanji TSURU; Michito MARUTA; Shigeki MATSUYA
- Abstract
To understand the feasibility of calcium (Ca) modification of type 3 16L stainless steel (316L SS) surface using hydrothermal treatment, 316L SS plates were treated hydrothermally in calcium chloride (CaC12) solution. X-ray photoelectron spectroscopic analysis revealed that the surface of 316L SS plate was modified with Ca after hydrothermal treatment at 200°C. And the immobilized Ca increased with CaC12 concentration. However no Ca-modification was occurred for 316L SS plates treated at 100°C. When Ca-modified 316L SS plate was immersed in simulated body fluid (SBF) with ion concentrations nearly equal to those of human blood plasma, low crystalline apatite was precipitated on its surface whereas no precipitate was observed on non Ca-modified 316L SS. The results obtained in the present study indicated that hydrothermal treatment at 200°C in CaCI2 solution is useful for Ca-modification of 316L SS, and Ca-modification plays important role for apatite precipitation in SBF.
- Subjects
STAINLESS steel; BODY fluids; CALCIUM chloride; X-ray photoelectron spectroscopy; EXTRACELLULAR matrix; DRUG delivery systems
- Publication
Dental Materials Journal, 2011, Vol 30, Issue 5, p749
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2010-153