Precursor system for bio-integration ceramics and deposition onto tantala scaffold bone interface surfaces

Richard Hartshorn; Samantha Stockwell; Maxim Lebedev; Susan Krumdieck

doi:10.1016/j.surfcoat.2007.04.042

Precursor system for bio-integration ceramics and deposition onto tantala scaffold bone interface surfaces

Richard Hartshorn, Samantha Stockwell, Maxim Lebedev, Susan Krumdieck^*

^*Corresponding author for this work

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

12 Citations (Scopus)

Abstract

Modern orthopaedic bone implants and joint replacements employ hydroxyapatite (HA) coatings to stimulate bone growth. Metal Ti and Ta implants are also moving to rough and porous contact surfaces to enhance integration and long term stability. The current methods of applying HA to implants have problems with adhesion, and there is no MOCVD precursor system reported in the literature. We have investigated a methanolic MOCVD precursor solution of calcium-dibenzoylmethane and trimethylphosphate in combination with a unique pulsed-pressure MOCVD (PP-MOCVD) process to apply a thin adherent film of HA onto a tantalum implant scaffold material. This technique will allow use of multiple precursors and is not limited by precursor volatility. Calcium and phosphorous deposits were identified at depths of up to 4 mm on the tantalum scaffold sample by EDS analysis.

Original language	English
Pages (from-to)	9413-9416
Number of pages	4
Journal	Surface and Coatings Technology
Volume	201
Issue number	22-23
DOIs	https://doi.org/10.1016/j.surfcoat.2007.04.042
Publication status	Published - 25 Sept 2007

Keywords

Bio-materials
Hydroxyapatite
MOCVD precursor development
Pulsed-pressure MOCVD

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.surfcoat.2007.04.042

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title = "Precursor system for bio-integration ceramics and deposition onto tantala scaffold bone interface surfaces",

abstract = "Modern orthopaedic bone implants and joint replacements employ hydroxyapatite (HA) coatings to stimulate bone growth. Metal Ti and Ta implants are also moving to rough and porous contact surfaces to enhance integration and long term stability. The current methods of applying HA to implants have problems with adhesion, and there is no MOCVD precursor system reported in the literature. We have investigated a methanolic MOCVD precursor solution of calcium-dibenzoylmethane and trimethylphosphate in combination with a unique pulsed-pressure MOCVD (PP-MOCVD) process to apply a thin adherent film of HA onto a tantalum implant scaffold material. This technique will allow use of multiple precursors and is not limited by precursor volatility. Calcium and phosphorous deposits were identified at depths of up to 4 mm on the tantalum scaffold sample by EDS analysis.",

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T1 - Precursor system for bio-integration ceramics and deposition onto tantala scaffold bone interface surfaces

AU - Hartshorn, Richard

AU - Stockwell, Samantha

AU - Lebedev, Maxim

AU - Krumdieck, Susan

PY - 2007/9/25

Y1 - 2007/9/25

N2 - Modern orthopaedic bone implants and joint replacements employ hydroxyapatite (HA) coatings to stimulate bone growth. Metal Ti and Ta implants are also moving to rough and porous contact surfaces to enhance integration and long term stability. The current methods of applying HA to implants have problems with adhesion, and there is no MOCVD precursor system reported in the literature. We have investigated a methanolic MOCVD precursor solution of calcium-dibenzoylmethane and trimethylphosphate in combination with a unique pulsed-pressure MOCVD (PP-MOCVD) process to apply a thin adherent film of HA onto a tantalum implant scaffold material. This technique will allow use of multiple precursors and is not limited by precursor volatility. Calcium and phosphorous deposits were identified at depths of up to 4 mm on the tantalum scaffold sample by EDS analysis.

AB - Modern orthopaedic bone implants and joint replacements employ hydroxyapatite (HA) coatings to stimulate bone growth. Metal Ti and Ta implants are also moving to rough and porous contact surfaces to enhance integration and long term stability. The current methods of applying HA to implants have problems with adhesion, and there is no MOCVD precursor system reported in the literature. We have investigated a methanolic MOCVD precursor solution of calcium-dibenzoylmethane and trimethylphosphate in combination with a unique pulsed-pressure MOCVD (PP-MOCVD) process to apply a thin adherent film of HA onto a tantalum implant scaffold material. This technique will allow use of multiple precursors and is not limited by precursor volatility. Calcium and phosphorous deposits were identified at depths of up to 4 mm on the tantalum scaffold sample by EDS analysis.

KW - Bio-materials

KW - Hydroxyapatite

KW - MOCVD precursor development

KW - Pulsed-pressure MOCVD

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DO - 10.1016/j.surfcoat.2007.04.042

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AN - SCOPUS:34547686653

SN - 0257-8972

VL - 201

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EP - 9416

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - 22-23

ER -

Precursor system for bio-integration ceramics and deposition onto tantala scaffold bone interface surfaces

Abstract

Keywords

ASJC Scopus subject areas

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