Surface Treatment of Acetabular Cups with a Direct Deposition of a Composite Nanostructured Layer Using a High Electrostatic Field

0532744 - ÚSMH 2021 RIV CH eng J - Journal Article
Pokorný, M. - Suchý, Tomáš - Kotzianová, A. - Klemeš, J. - Denk, František - Šupová, Monika - Sucharda, Zbyněk - Sedláček, R. - Horný, L. - Králík, V. - Velebný, V. - Čejka, Z.
Surface Treatment of Acetabular Cups with a Direct Deposition of a Composite Nanostructured Layer Using a High Electrostatic Field.
Molecules. Roč. 25, č. 5 (2020), č. článku 1173. E-ISSN 1420-3049
R&D Projects: GA TA ČR(CZ) TA04010330
Institutional support: RVO:67985891
Keywords : collagen composite * hydroxyapatite * titanium implant * nanofibers * electrospinning
OECD category: Applied mechanics
Impact factor: 4.412, year: 2020
Method of publishing: Open access
https://www.mdpi.com/1420-3049/25/5/1173/htm

A composite nanofibrous layer containing collagen and hydroxyapatite was deposited on selected surface areas of titanium acetabular cups. The layer was deposited on the irregular surface of these 3D objects using a specially developed electrospinning system designed to ensure the stability of the spinning process and to produce a layer approximately 100 micrometers thick with an adequate thickness uniformity. It was verified that the layer had the intended nanostructured morphology throughout its entire thickness and that the prepared layer sufficiently adhered to the smooth surface of the model titanium implants even after all the post-deposition sterilization and stabilization treatments were performed. The resulting layers had an average thickness of (110 +/- 30) micrometers and an average fiber diameter of (170 +/- 49) nanometers. They were produced using a relatively simple and cost-effective technology and yet they were verifiably biocompatible and structurally stable. Collagen- and hydroxyapatite-based composite nanostructured surface modifications represent promising surface treatment options for metal implants.
Permanent Link: http://hdl.handle.net/11104/0311248