Bioinspired monolithic polymer microsphere arrays as generically anti-adhesive surfaces.

Eichler-Volf, A., Kovalev, A., Wedeking, T., Gorb, E. V., Xue, L. J., You, C. J., Piehler, J., Gorb, Stanislav and Steinhart, M. (2016) Bioinspired monolithic polymer microsphere arrays as generically anti-adhesive surfaces. Bioinspiration & Biomimetics, 11 (2). DOI 10.1088/1748-3190/11/2/025002.

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Bioinspired surface topographies showing generic anti-adhesive behaviour by minimization of the real contact area not only with rigid, but also with soft and compliant counterpart surfaces recently attracted increasing attention. In the present study, we show that such generic anti-adhesive surfaces, which moreover demonstrate anti-fouling behaviour, can be produced on a large scale by a simple double replication of monolayers of microspheres with diameters of a few 10 mu m. Thus, we obtained mechanically stable monolithic arrays of microspheres tightly connected to a support of the same material. Adhesion of these microsphere arrays to sticky and compliant counterpart surfaces was one order of magnitude weaker than that of flat control samples of the same material. The generation of nanorod arrays with nanorod diameters of a few 100 nmas the second hierarchical structure level on monolithic microsphere arrays did not significantly affect the adhesion force. The experimental data on anti-adhesive behaviour were modelled using a modified Johnson-Kendall-Roberts theoretical approach that also provided general design criteria for topographic adhesion minimization to sticky counterpart surfaces.

Document Type: Article
Additional Information: Times Cited: 2 Eichler-Volf, Anna Kovalev, Alexander Wedeking, Tim Gorb, Elena V. Xue, Longjian You, Changjiang Piehler, Jacob Gorb, Stanislav N. Steinhart, Martin University-of-Maryland Workshop on Distributed Sensing, Actuation, and Control for Bioinspired Soft Robotics Sep 11-12, 2014 College Park, MD
Research affiliation: Kiel University
Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1088/1748-3190/11/2/025002
ISSN: 1748-3182
Projects: Future Ocean
Date Deposited: 24 Feb 2017 14:05
Last Modified: 23 Sep 2019 22:58

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