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Low‐Temperature Preparation of Anatase and Rutile Layers on Titanium Substrates and Their Ability To Induce in Vitro Apatite Deposition
Author(s) -
Wu JinMing,
Hayakawa Satoshi,
Tsuru Kanji,
Osaka Akiyoshi
Publication year - 2004
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2004.01635.x
Subject(s) - anatase , rutile , apatite , simulated body fluid , titanium , materials science , chemical engineering , deposition (geology) , mineralogy , layer (electronics) , epitaxy , inorganic chemistry , metallurgy , nanotechnology , chemistry , photocatalysis , geology , catalysis , organic chemistry , paleontology , sediment , engineering
Surface modification of titanium and its alloys to induce apatite deposition within a short period is of practical importance in clinical applications. In this study, titanium substrates were treated with hydrogen peroxide solutions at low temperatures to yield titania layers consisting of anatase and rutile. Those titania layers, regardless of the fraction of anatase and rutile, were bioactive to induce deposition of apatite in Kokubo's simulated body fluid within 24 h. The bioactivity was attributed to both the epitaxial effect and the abundant Ti–OH group of the titania layer.