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Poster

Mechanincally- and chemically-active nanostructured antibacterial surfaces fabricated by glancing angle sputter deposition

Wednesday (07.06.2017)
20:18 - 20:21 Förde I
Part of:


Mechanincally- and chemically-active nanostructured antibacterial surfaces fabricated by glancing angle sputter deposition

N. Ziegler1, C. Sengstock2, K. Tschulik3, M. Köller2, Alfred Ludwig1

1Ruhr-University Bochum, Faculty of Mechanical Engineering, Institute for Materials, Universitätsstraße 150, 44801 Bochum, Germany

2University Hospital Bergmannsheil, Surgical Research, Buerkle-de-la-Camp-Platz 1, 44789 Bochum, Germany

3Ruhr-University Bochum, Faculty of Chemistry and Biochemistry, Micro- & Nano-Electrochemistry and Center for Electrochemical Sciences (CES), Universitätsstraße 150, 44801 Bochum, Germany


To reduce implant associated infections, implant materials need to have antibacterial properties combined with good tissue compatibility. The nanostructure of Clanger cicada, was synthetically mimicked in this study by glancing angle deposition (GLAD) sputtering. The produced nano-columns are effective against gram-negative bacteria which can be related to their specific geometry [1]. Furthermore, antibacterial materials e.g. silver show the ability to kill gram-negative and gram-positive bacteria (chemical effect). To control the release of Ag from antibacterial surfaces, a sacrificial anode concept was realized [2]. Finally, the mechanically active nanocolumns will be combined with the antibacterial ion release to create novel antibacterial surfaces.

[1] C. Sengstock, M. Lopian, Y. Motemani, A. Borgmann, C. Khare, P. J. Buenconsejo, T. A. Schildhauer, A. Ludwig, and M. Koller, “Structure-related antibacterial activity of a titanium nanostructured surface fabricated by glancing angle sputter deposition,” Nanotechnology, vol. 25, no. 19, 2014.

[2] M. Köller, C. Sengstock, Y. Motemani, C. Khare, P. J. S. Buenconsejo, J. Geukes, T. A. Schildhauer, and A. Ludwig, “Antibacterial activity of microstructured Ag/Au sacrificial anode thin films,” Mater. Sci. Eng. C, vol. 46, pp. 276–280, 2015.


 

Speaker:
Nadine Ziegler
Ruhr-Universität Bochum
Additional Authors:
  • Prof. Dr. Christina Sengstock
    University Hospital Bergmannsheil
  • Prof. Dr. Kristina Tschulik
    Ruhr-University Bochum
  • Prof. Dr. Manfred Köller
    University Hospital Bergmannsheil
  • Prof. Dr. Alfred Ludwig
    Ruhr-University Bochum