Biocompatible ceramic-biopolymer coatings obtained by electrophoretic deposition on electron beam structured titanium alloy surfaces

Ramskogler C, Cordero L, Warchomicka F, Boccaccini AR, Sommitsch C (2017)

Publication Type: Conference contribution

Publication year: 2017

Journal

Materials Science Forum Trans Tech Publications

Publisher: Trans Tech Publications Ltd

Book Volume: 879

Pages Range: 1552-1557

Conference Proceedings Title: Materials Science Forum

Event location: Graz, AUT

ISBN: 9783035711295

DOI: 10.4028/www.scientific.net/MSF.879.1552

Abstract

An area of major interest in biomedical engineering is currently the development of improved materials for medical implants. Research efforts are being focused on the investigation of surface modification methods for metallic prostheses due to the fundamental bioinert character of these materials and the possible ion release from their surfaces, which could potentially induce the interfacial loosening of devices after implantation. Electron beam (EB) structuring is a novel technique to control the surface topography in metals. Electrophoretic deposition (EPD) offers the feasibility to deposit at room temperature a variety of materials on conductive substrates from colloidal suspensions under electric fields. In this work single layers of chitosan composite coatings containing titania nanoparticles (n-TiO²) were deposit by EPD on electron beam (EB) structured Ti6Al4V titanium alloy. Surface structures were designed following different criteria in order to develop specific topography on the Ti6Al4V substrate. n-TiO2 particles were used as a model particle in order to demonstrate the versatility of the proposed technique for achieving homogenous chitosan based coatings on structured surfaces. A linear relation between EPD time and deposition yield on different patterned Ti6Al4V surfaces was determined under constant voltage conditions, obtaining homogeneous EPD coatings which replicate the 3D structure (pattern) of the substrate surface. The present results show that a combination of both techniques can be considered a promising surface modification approach for metallic implants, which should lead to improved interaction between the implant surface and the biological environment for orthopaedic applications.

Authors with CRIS profile

Luis Eduardo Cordero Arias Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Technische Universität Graz

Austria (AT)

How to cite

APA:

Ramskogler, C., Cordero, L., Warchomicka, F., Boccaccini, A.R., & Sommitsch, C. (2017). Biocompatible ceramic-biopolymer coatings obtained by electrophoretic deposition on electron beam structured titanium alloy surfaces. In Christof Sommitsch, Mihail Ionescu, Brajendra Mishra, Brajendra Mishra, Ernst Kozeschnik, T. Chandra (Eds.), Materials Science Forum (pp. 1552-1557). Graz, AUT: Trans Tech Publications Ltd.

MLA:

Ramskogler, C., et al. "Biocompatible ceramic-biopolymer coatings obtained by electrophoretic deposition on electron beam structured titanium alloy surfaces." Proceedings of the 9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016, Graz, AUT Ed. Christof Sommitsch, Mihail Ionescu, Brajendra Mishra, Brajendra Mishra, Ernst Kozeschnik, T. Chandra, Trans Tech Publications Ltd, 2017. 1552-1557.

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