Erlangen 2018 – wissenschaftliches Programm
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K: Fachverband Kurzzeit- und angewandte Laserphysik
K 3: Laser Systems and Applications
K 3.2: Vortrag
Dienstag, 6. März 2018, 14:30–14:45, MB HS
Laser-induced Micro- and Nanostructures on Ti-alloy Cylinders for Reduced Adhesion of Biological Cells — •Peter Fosodeder1, Johannes Heitz1, Agnes Weth2, and Werner Baumgartner2 — 1Institute of Applied Physics, Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria — 2Institute of Biomedical Mechatronics, Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria
Irradiation of cylindrical Ti-alloy samples with a Ti:sapphire fs-laser results in the formation of self-organized micro- and nanostructures, i.e., sharp cones or spikes covered by fine sub-wavelength ripples. The motivation of this work is to create a structured ring on a small cylinder with cell-repellent properties, similar as we demonstrated recently for flat substrates [1]. We aim to create such structures on a miniaturized implantable pacemaker to avoid tissue growth around the device.
[1] J. Heitz, C. Plamadeala, M. Muck, O. Armbruster, W. Baumgartner, A. Weth, C. Steinwender, H. Blessberger, J. Kellermair, S. Kirner, J. Krüger, J. Bonse, A.S. Guntner, A.W. Hassel, Appl. Phys. A 123, 734 (2017)