Comparative study of in vitro apatite-forming abilities of highly ordered rutile nanorod arrays fabricated on cpTi and Ti6Al4V alloys

Xingzhu Liu; Tomohiko Yoshioka; Satoshi Hayakawa

doi:10.1080/21870764.2019.1699230

Comparative study of in vitro apatite-forming abilities of highly ordered rutile nanorod arrays fabricated on cpTi and Ti6Al4V alloys

Xingzhu Liu, Tomohiko Yoshioka, Satoshi Hayakawa

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The surfaces of commercially available pure titanium (cpTi) and Ti6Al4V alloy specimens were modified to form highly ordered rutile nanorod arrays by chemical treatment and subsequent aging treatment. The densities of the rutile rods were (1.04 ± 0.06) ×10³ and (0.70 ± 0.10) ×10³ μm^–2 for the cpTi and Ti6Al4V alloy specimens, respectively. Both the rutile nanorod arrays on the cpTi and Ti6Al4V alloy specimens deposited apatite particles when soaked in simulated body fluid (SBF) for one day. After soaking for various other periods, scanning electron microscopy images and thin-film X-ray diffraction patterns of these specimens showed that the cpTi specimens exhibited a superior rate of apatite nucleation and favored the formation of numerous apatite particles with larger diameter. This superior apatite-forming ability of the cpTi specimens can be attributed to the dense, thick titania layers with higher rutile nanorod density on their surfaces.

Original language	English
Pages (from-to)	29-38
Number of pages	10
Journal	Journal of Asian Ceramic Societies
Volume	8
Issue number	1
DOIs	https://doi.org/10.1080/21870764.2019.1699230
Publication status	Published - Jan 2 2020

Keywords

Rutile
apatite
nanorod arrays
rod density

ASJC Scopus subject areas

Ceramics and Composites

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10.1080/21870764.2019.1699230

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title = "Comparative study of in vitro apatite-forming abilities of highly ordered rutile nanorod arrays fabricated on cpTi and Ti6Al4V alloys",

abstract = "The surfaces of commercially available pure titanium (cpTi) and Ti6Al4V alloy specimens were modified to form highly ordered rutile nanorod arrays by chemical treatment and subsequent aging treatment. The densities of the rutile rods were (1.04 ± 0.06) ×103 and (0.70 ± 0.10) ×103 μm–2 for the cpTi and Ti6Al4V alloy specimens, respectively. Both the rutile nanorod arrays on the cpTi and Ti6Al4V alloy specimens deposited apatite particles when soaked in simulated body fluid (SBF) for one day. After soaking for various other periods, scanning electron microscopy images and thin-film X-ray diffraction patterns of these specimens showed that the cpTi specimens exhibited a superior rate of apatite nucleation and favored the formation of numerous apatite particles with larger diameter. This superior apatite-forming ability of the cpTi specimens can be attributed to the dense, thick titania layers with higher rutile nanorod density on their surfaces.",

keywords = "Rutile, apatite, nanorod arrays, rod density",

author = "Xingzhu Liu and Tomohiko Yoshioka and Satoshi Hayakawa",

note = "Funding Information: This research was partially supported by Grant-in-Aid for Challenging Exploratory Reseach Grant Number 24656386; Japan Society for the Promotion of Science [24656386] The authors are grateful to Dr. Noriyuki Nagaoka of Okayama University for his very kind assistance with the FE-SEM measurements of the CT-cpTi and CT-Ti6Al4V alloy specimens. Publisher Copyright: {\textcopyright} 2019, {\textcopyright} 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of The Korean Ceramic Society and The Ceramic Society of Japan.",

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N1 - Funding Information: This research was partially supported by Grant-in-Aid for Challenging Exploratory Reseach Grant Number 24656386; Japan Society for the Promotion of Science [24656386] The authors are grateful to Dr. Noriyuki Nagaoka of Okayama University for his very kind assistance with the FE-SEM measurements of the CT-cpTi and CT-Ti6Al4V alloy specimens. Publisher Copyright: © 2019, © 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of The Korean Ceramic Society and The Ceramic Society of Japan.

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N2 - The surfaces of commercially available pure titanium (cpTi) and Ti6Al4V alloy specimens were modified to form highly ordered rutile nanorod arrays by chemical treatment and subsequent aging treatment. The densities of the rutile rods were (1.04 ± 0.06) ×103 and (0.70 ± 0.10) ×103 μm–2 for the cpTi and Ti6Al4V alloy specimens, respectively. Both the rutile nanorod arrays on the cpTi and Ti6Al4V alloy specimens deposited apatite particles when soaked in simulated body fluid (SBF) for one day. After soaking for various other periods, scanning electron microscopy images and thin-film X-ray diffraction patterns of these specimens showed that the cpTi specimens exhibited a superior rate of apatite nucleation and favored the formation of numerous apatite particles with larger diameter. This superior apatite-forming ability of the cpTi specimens can be attributed to the dense, thick titania layers with higher rutile nanorod density on their surfaces.

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Comparative study of in vitro apatite-forming abilities of highly ordered rutile nanorod arrays fabricated on cpTi and Ti6Al4V alloys

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