Deposition of titanium nitride (TiN) on Co-Cr and their potential application as vascular stent

Vuong Hung Pham; Shin Hee Jun; Hyoun Ee Kim; Young Hag Koh

doi:10.1016/j.apsusc.2011.10.149

Deposition of titanium nitride (TiN) on Co-Cr and their potential application as vascular stent

Vuong Hung Pham, Shin Hee Jun, Hyoun Ee Kim, Young Hag Koh

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

20 Citations (Scopus)

Abstract

This study reports the effect of a TiN film on the mechanical properties and endothelial compatibility of a Co-Cr substrate. A dense, columnar TiN film with a preferential orientation of the (1 1 1) plane was deposited successfully on a Co-Cr substrate by reactive DC sputtering, particularly by applying a negative substrate bias during deposition. Good adhesion between the TiN film and Co-Cr substrate was achieved using a thin Ti film as an intermediate layer. The TiN film improved the mechanical properties of the Co-Cr significantly, such as the surface hardness and elastic modulus. In addition, the attachment and proliferation of endothelial cells were enhanced remarkably, which was attributed mainly to the favorable absorption of proteins on a biocompatible TiN surface.

Original language	English
Pages (from-to)	2864-2868
Number of pages	5
Journal	Applied Surface Science
Volume	258
Issue number	7
DOIs	https://doi.org/10.1016/j.apsusc.2011.10.149
Publication status	Published - 2012 Jan 15

Bibliographical note

Funding Information:
This work was supported by the Technology Innovation Program (Contract No. 10037915, WPM Biomedical Materials – Implant Materials) funded by the Ministry of Knowledge Economy (MKE, Korea).

Keywords

Biocompatibility
Biomaterials
Deposition
Endothelial cell
Metals and alloys
Sputtering

ASJC Scopus subject areas

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

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10.1016/j.apsusc.2011.10.149

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title = "Deposition of titanium nitride (TiN) on Co-Cr and their potential application as vascular stent",

abstract = "This study reports the effect of a TiN film on the mechanical properties and endothelial compatibility of a Co-Cr substrate. A dense, columnar TiN film with a preferential orientation of the (1 1 1) plane was deposited successfully on a Co-Cr substrate by reactive DC sputtering, particularly by applying a negative substrate bias during deposition. Good adhesion between the TiN film and Co-Cr substrate was achieved using a thin Ti film as an intermediate layer. The TiN film improved the mechanical properties of the Co-Cr significantly, such as the surface hardness and elastic modulus. In addition, the attachment and proliferation of endothelial cells were enhanced remarkably, which was attributed mainly to the favorable absorption of proteins on a biocompatible TiN surface.",

keywords = "Biocompatibility, Biomaterials, Deposition, Endothelial cell, Metals and alloys, Sputtering",

author = "Pham, {Vuong Hung} and Jun, {Shin Hee} and Kim, {Hyoun Ee} and Koh, {Young Hag}",

note = "Funding Information: This work was supported by the Technology Innovation Program (Contract No. 10037915, WPM Biomedical Materials – Implant Materials) funded by the Ministry of Knowledge Economy (MKE, Korea).",

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AU - Pham, Vuong Hung

AU - Jun, Shin Hee

AU - Kim, Hyoun Ee

AU - Koh, Young Hag

N1 - Funding Information: This work was supported by the Technology Innovation Program (Contract No. 10037915, WPM Biomedical Materials – Implant Materials) funded by the Ministry of Knowledge Economy (MKE, Korea).

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N2 - This study reports the effect of a TiN film on the mechanical properties and endothelial compatibility of a Co-Cr substrate. A dense, columnar TiN film with a preferential orientation of the (1 1 1) plane was deposited successfully on a Co-Cr substrate by reactive DC sputtering, particularly by applying a negative substrate bias during deposition. Good adhesion between the TiN film and Co-Cr substrate was achieved using a thin Ti film as an intermediate layer. The TiN film improved the mechanical properties of the Co-Cr significantly, such as the surface hardness and elastic modulus. In addition, the attachment and proliferation of endothelial cells were enhanced remarkably, which was attributed mainly to the favorable absorption of proteins on a biocompatible TiN surface.

AB - This study reports the effect of a TiN film on the mechanical properties and endothelial compatibility of a Co-Cr substrate. A dense, columnar TiN film with a preferential orientation of the (1 1 1) plane was deposited successfully on a Co-Cr substrate by reactive DC sputtering, particularly by applying a negative substrate bias during deposition. Good adhesion between the TiN film and Co-Cr substrate was achieved using a thin Ti film as an intermediate layer. The TiN film improved the mechanical properties of the Co-Cr significantly, such as the surface hardness and elastic modulus. In addition, the attachment and proliferation of endothelial cells were enhanced remarkably, which was attributed mainly to the favorable absorption of proteins on a biocompatible TiN surface.

KW - Biocompatibility

KW - Biomaterials

KW - Deposition

KW - Endothelial cell

KW - Metals and alloys

KW - Sputtering

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SP - 2864

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Deposition of titanium nitride (TiN) on Co-Cr and their potential application as vascular stent

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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