J. Funct. Biomater. 2012, 3(2), 283-297; doi:10.3390/jfb3020283
Article

Hemocompatibility of Inorganic Physical Vapor Deposition (PVD) Coatings on Thermoplastic Polyurethane Polymers

1,* email, 1email, 1email, 2email, 2email, 3email, 4email, 5email and 5email
Received: 9 March 2012; in revised form: 10 April 2012 / Accepted: 11 April 2012 / Published: 17 April 2012
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Biocompatibility improvements for blood contacting materials are of increasing interest for implanted devices and interventional tools. The current study focuses on inorganic (titanium, titanium nitride, titanium oxide) as well as diamond-like carbon (DLC) coating materials on polymer surfaces (thermoplastic polyurethane), deposited by magnetron sputtering und pulsed laser deposition at room temperature. DLC was used pure (a-C:H) as well as doped with silicon, titanium, and nitrogen + titanium (a-C:H:Si, a-C:H:Ti, a-C:H:N:Ti). In-vitro testing of the hemocompatibility requires mandatory dynamic test conditions to simulate in-vivo conditions, e.g., realized by a cone-and-plate analyzer. In such tests, titanium- and nitrogen-doped DLC and titanium nitride were found to be optimally anti-thrombotic and better than state-of-the-art polyurethane polymers. This is mainly due to the low tendency to platelet microparticle formation, a high content of remaining platelets in the whole blood after testing and low concentration of platelet activation and aggregation markers. Comparing this result to shear-flow induced cell motility tests with e.g., Dictostelium discoideum cell model organism reveals similar tendencies for the investigated materials.
Keywords: inorganic thin film materials; diamond-like carbon; dynamic blood testing; blood
PDF Full-text Download PDF Full-Text [902 KB, uploaded 17 April 2012 13:49 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Lackner, J.M.; Waldhauser, W.; Hartmann, P.; Bruckert, F.; Weidenhaupt, M.; Major, R.; Sanak, M.; Wiesinger, M.; Heim, D. Hemocompatibility of Inorganic Physical Vapor Deposition (PVD) Coatings on Thermoplastic Polyurethane Polymers. J. Funct. Biomater. 2012, 3, 283-297.

AMA Style

Lackner JM, Waldhauser W, Hartmann P, Bruckert F, Weidenhaupt M, Major R, Sanak M, Wiesinger M, Heim D. Hemocompatibility of Inorganic Physical Vapor Deposition (PVD) Coatings on Thermoplastic Polyurethane Polymers. Journal of Functional Biomaterials. 2012; 3(2):283-297.

Chicago/Turabian Style

Lackner, Juergen M.; Waldhauser, Wolfgang; Hartmann, Paul; Bruckert, Franz; Weidenhaupt, Marianne; Major, Roman; Sanak, Marek; Wiesinger, Martin; Heim, Daniel. 2012. "Hemocompatibility of Inorganic Physical Vapor Deposition (PVD) Coatings on Thermoplastic Polyurethane Polymers." J. Funct. Biomater. 3, no. 2: 283-297.

J. Funct. Biomater. EISSN 2079-4983 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert