期刊
ACTA BIOMATERIALIA
卷 6, 期 10, 页码 4161-4166出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.actbio.2010.05.010
关键词
Zirconium; Calcium phosphate; Cathodic polarization; X-ray photoelectron spectroscopy; Hydroxyapatite
资金
- Japan Society for the Promotion of Science [18300160]
- Grants-in-Aid for Scientific Research [18300160] Funding Source: KAKEN
The cathodic polarization technique to form an alkaline environment on a zirconium (Zr) surface, discussed in the present study, is unique, and gives the ability to form calcium phosphate in a simulated body fluid to Zr, on the other hand, many previous studies have been conducted using immersion in alkaline solutions. In this study, two discrete techniques were investigated Zr was cathodically polarized in an electrolyte without calcium and phosphate ions, and Zr was cathodically polarized in another electrolyte containing calcium and phosphate ions, Hanks' solution, to directly form a calcium phosphate layer The surface was characterized using X-ray photoelectron spectroscopy, and the performance of the material was evaluated by immersion in Hanks' solution As a result, the ability to form calcium phosphate in Hanks' solution was given by cathodic polarization in the Na2SO4 solution containing H2O2. In addition, a cathodic potential under -1.5 V-SCE is required to form hydroxyapatite directly in Hanks' solution. This research clearly reveals useful surface modification techniques giving the ability to form calcium phosphate in a simulated body fluid by cathodic polarization (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd All rights reserved
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