Nanostructured Calcium Phosphate Coating for Stents

Abstract:

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A nanoporous calcium phosphate (CaP) coating on metallic surfaces is presented. The coating consists of a stack of (a) a TiNbN layer deposited by physical vapor deposition and acting as diffusion barrier against allergenic ions, (b) a SiO2 xerogel layer providing good adhesion properties and designing the nanoporosity of the outer CaP layer (c) precipitated electrochemically. SEM results verified a homogeneous nanoscale porous structure of the CaP coating. It is characterized by a high adhesion strength. If applied to stent covering the nanoporous CaP coating has promising properties to initiate rapid endothelium formation and reduced risk of restenosis.

Info:

Periodical:

Key Engineering Materials (Volumes 361-363)

Main Theme:

Edited by:

Guy Daculsi and Pierre Layrolle

Pages:

721-724

DOI:

10.4028/www.scientific.net/KEM.361-363.721

Citation:

U. Lembke et al., "Nanostructured Calcium Phosphate Coating for Stents", Key Engineering Materials, Vols. 361-363, pp. 721-724, 2008

Online since:

November 2007

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Price:

$35.00

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