Plasma-controlled nanocrystallinity and phase composition of TiO2 : a smart way to enhance biomimetic response

Zhou, Wei, Zhong, Xiaoxia, Wu, Xiaochen, Yuan, Luqi, Shu, Qiwei, Xia, Yuxing, & Ostrikov, Kostya (2007) Plasma-controlled nanocrystallinity and phase composition of TiO2 : a smart way to enhance biomimetic response. Journal of Biomedical Materials Research Part A, 81A(2), pp. 453-464.

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Abstract

This contribution sheds light on the role of crystal size and phase composition in inducing biomimetic apatite growth on the surface of nanostructured titania films synthesized by reactive magnetron sputtering of Ti targets in Ar+O2 plasmas. Unlike most existing techniques, this method enables one to deposit highly crystalline titania films with a wide range of phase composition and nanocrystal size, without any substrate heating or postannealing. Moreover, by using this dry plasma-based method one can avoid surface hydroxylation at the deposition stage, almost inevitable in wet chemical processes. Results of this work show that high phase purity and optimum crystal size appear to be the essential requirement for efficient apatite formation on magnetron plasma-fabricated bioactive titania coatings. © 2006 Wiley Periodicals, Inc.

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18 citations in Scopus
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27 citations in Web of Science®

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ID Code: 74040
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Apatite formation, Bioactivity, Nanocrystalline films, Reactive magnetron sputtering, Titanium oxide
DOI: 10.1002/jbm.a.30987
ISSN: 1549-3296
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 17 Jul 2014 03:26
Last Modified: 18 Jul 2014 00:06

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