Apatite formation behavior on bio-ceramic films prepared by MOCVD

Mitsutaka Sato; Rong Tu; Takashi Goto; Kyosuke Ueda; Takayuki Narushima

doi:10.2109/jcersj2.117.461

Apatite formation behavior on bio-ceramic films prepared by MOCVD

Mitsutaka Sato, Rong Tu, Takashi Goto, Kyosuke Ueda, Takayuki Narushima

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

8 Citations (Scopus)

Abstract

Calcium titanate (CaTiO₃), α-tricalcium phosphate (α-TCP) and hydroxyapatite (HAp) films were prepared by metal-organic chemical vapor deposition (MOCVD) using Ca(dpm)₂, Ti(O-i-Pr) ₂(dpm)₂ and (C₆H₅O)₃PO precursors. The phases, composition and surface morphology of these films changed depending on substrate temperature (T_sub), total pressure (P_tot) and molar ratio of each precursors (R_Ca/Ti, R _Ca/P). The surface morphology of CaTiO₃ films changed from granular structure to cauliflower-like texture, and its cross-sectional morphology changed from dense to columnar structure with increasing T _sub. α-TCP and HAp films had granular surface and dense cross-sectional morphology. CaTiO₃, α-TCP and HAp films were immersed in a Hanks' solution for 28 d. Apatite formation rate strongly depended on the surface morphology of CaTiO₃ film, and apatite covered CaTiO₃ film having a granular surface after 4 w while CaTiO ₃ film having a cauliflower-like texture after 3 d. Apatite covered α-TCP films after 14 d and HAp films after 6 h, respectively. HAp films prepared by MOCVD were promising as bone conductive materials.

Original language	English
Pages (from-to)	461-465
Number of pages	5
Journal	Journal of the Ceramic Society of Japan
Volume	117
Issue number	1364
DOIs	https://doi.org/10.2109/jcersj2.117.461
Publication status	Published - 2009 Apr

Keywords

Apatite
Bio-ceramics
Calcium phosphate
Calcium titanate
Metal organic chemical vapor deposition

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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title = "Apatite formation behavior on bio-ceramic films prepared by MOCVD",

abstract = "Calcium titanate (CaTiO3), α-tricalcium phosphate (α-TCP) and hydroxyapatite (HAp) films were prepared by metal-organic chemical vapor deposition (MOCVD) using Ca(dpm)2, Ti(O-i-Pr) 2(dpm)2 and (C6H5O)3PO precursors. The phases, composition and surface morphology of these films changed depending on substrate temperature (Tsub), total pressure (Ptot) and molar ratio of each precursors (RCa/Ti, R Ca/P). The surface morphology of CaTiO3 films changed from granular structure to cauliflower-like texture, and its cross-sectional morphology changed from dense to columnar structure with increasing T sub. α-TCP and HAp films had granular surface and dense cross-sectional morphology. CaTiO3, α-TCP and HAp films were immersed in a Hanks' solution for 28 d. Apatite formation rate strongly depended on the surface morphology of CaTiO3 film, and apatite covered CaTiO3 film having a granular surface after 4 w while CaTiO 3 film having a cauliflower-like texture after 3 d. Apatite covered α-TCP films after 14 d and HAp films after 6 h, respectively. HAp films prepared by MOCVD were promising as bone conductive materials.",

keywords = "Apatite, Bio-ceramics, Calcium phosphate, Calcium titanate, Metal organic chemical vapor deposition",

author = "Mitsutaka Sato and Rong Tu and Takashi Goto and Kyosuke Ueda and Takayuki Narushima",

year = "2009",

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doi = "10.2109/jcersj2.117.461",

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publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",

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T1 - Apatite formation behavior on bio-ceramic films prepared by MOCVD

AU - Sato, Mitsutaka

AU - Tu, Rong

AU - Goto, Takashi

AU - Ueda, Kyosuke

AU - Narushima, Takayuki

PY - 2009/4

Y1 - 2009/4

N2 - Calcium titanate (CaTiO3), α-tricalcium phosphate (α-TCP) and hydroxyapatite (HAp) films were prepared by metal-organic chemical vapor deposition (MOCVD) using Ca(dpm)2, Ti(O-i-Pr) 2(dpm)2 and (C6H5O)3PO precursors. The phases, composition and surface morphology of these films changed depending on substrate temperature (Tsub), total pressure (Ptot) and molar ratio of each precursors (RCa/Ti, R Ca/P). The surface morphology of CaTiO3 films changed from granular structure to cauliflower-like texture, and its cross-sectional morphology changed from dense to columnar structure with increasing T sub. α-TCP and HAp films had granular surface and dense cross-sectional morphology. CaTiO3, α-TCP and HAp films were immersed in a Hanks' solution for 28 d. Apatite formation rate strongly depended on the surface morphology of CaTiO3 film, and apatite covered CaTiO3 film having a granular surface after 4 w while CaTiO 3 film having a cauliflower-like texture after 3 d. Apatite covered α-TCP films after 14 d and HAp films after 6 h, respectively. HAp films prepared by MOCVD were promising as bone conductive materials.

AB - Calcium titanate (CaTiO3), α-tricalcium phosphate (α-TCP) and hydroxyapatite (HAp) films were prepared by metal-organic chemical vapor deposition (MOCVD) using Ca(dpm)2, Ti(O-i-Pr) 2(dpm)2 and (C6H5O)3PO precursors. The phases, composition and surface morphology of these films changed depending on substrate temperature (Tsub), total pressure (Ptot) and molar ratio of each precursors (RCa/Ti, R Ca/P). The surface morphology of CaTiO3 films changed from granular structure to cauliflower-like texture, and its cross-sectional morphology changed from dense to columnar structure with increasing T sub. α-TCP and HAp films had granular surface and dense cross-sectional morphology. CaTiO3, α-TCP and HAp films were immersed in a Hanks' solution for 28 d. Apatite formation rate strongly depended on the surface morphology of CaTiO3 film, and apatite covered CaTiO3 film having a granular surface after 4 w while CaTiO 3 film having a cauliflower-like texture after 3 d. Apatite covered α-TCP films after 14 d and HAp films after 6 h, respectively. HAp films prepared by MOCVD were promising as bone conductive materials.

KW - Apatite

KW - Bio-ceramics

KW - Calcium phosphate

KW - Calcium titanate

KW - Metal organic chemical vapor deposition

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SN - 1882-0743

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ER -

Apatite formation behavior on bio-ceramic films prepared by MOCVD

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