Femtosecond laser fabricated spike structures for selective control of cellular behavior

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Schlie, S.; Fadeeva, E.; Koch, J.; Ngezahayo, A.; Chichkov, B.N.: Femtosecond laser fabricated spike structures for selective control of cellular behavior. In: Journal of Biomaterials Applications 25 (2010), Nr. 3, S. 217-233. DOI: https://doi.org/10.1177/0885328209345553

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Sum total of downloads: 294




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Abstract: 
In this study we investigate the potential of femtosecond laser generated micrometer sized spike structures as functional surfaces for selective cell controlling. The spike dimensions as well as the average spike to spike distance can be easily tuned by varying the process parameters. Moreover, negative replications in soft materials such as silicone elastomer can be produced. This allows tailoring of wetting properties of the spike structures and their negative replicas representing a reduced surface contact area. Furthermore, we investigated material effects on cellular behavior. By comparing human fibroblasts and SH-SY5Y neuroblastoma cells we found that the influence of the material was cell specific. The cells not only changed their morphology, but also the cell growth was affected. Whereas, neuroblastoma cells proliferated at the same rate on the spike structures as on the control surfaces, the proliferation of fibroblasts was reduced by the spike structures. These effects can result from the cell specific adhesion patterns as shown in this work. These findings show a possibility to design defined surface microstructures, which could control cellular behavior in a cell specific manner.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2010
Appears in Collections:Naturwissenschaftliche Fakultät

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pos. country downloads
total perc.
1 image of flag of Germany Germany 156 53.06%
2 image of flag of United States United States 48 16.33%
3 image of flag of China China 17 5.78%
4 image of flag of No geo information available No geo information available 10 3.40%
5 image of flag of Russian Federation Russian Federation 5 1.70%
6 image of flag of Japan Japan 5 1.70%
7 image of flag of Ireland Ireland 5 1.70%
8 image of flag of Hong Kong Hong Kong 4 1.36%
9 image of flag of Canada Canada 4 1.36%
10 image of flag of Slovenia Slovenia 3 1.02%
    other countries 37 12.59%

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