Document Detail


Laser-engineered topography: correlation between structure dimensions and cell control.
MedLine Citation:
PMID:  22878727     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Topographical cues have a significant impact on cell responses and by this means, on the fabrication of innovative implant materials. However, analysis of cell-topography interactions in dependence of the surface feature dimensions is still challenging due to limitations in the fabrication technology. Here, we introduce surface structuring via picosecond laser systems, which enable a fast production of micro-sized topologies. Changes in the processing parameters further control the feature sizes of so-called spikes. Using surfaces with big and small spike-to-spike-distances for comparisons, we focussed on cell adhesion via extracellular matrix adsorption and focal adhesion complexes, morphology, localisation and proliferation of fibroblasts. The observed cell control was dependent on a turnover point related to the structure dimensions: only big spike-to-spike-distances reduced cell behaviour. Therefore, this technology offers a platform to study cell and tissue interactions with a defined microenvironment.
Authors:
Sabrina Schlie; Elena Fadeeva; Anastasia Koroleva; Boris N Chichkov
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-10
Journal Detail:
Title:  Journal of materials science. Materials in medicine     Volume:  -     ISSN:  1573-4838     ISO Abbreviation:  J Mater Sci Mater Med     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9013087     Medline TA:  J Mater Sci Mater Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Laser Zentrum Hannover e.V., Hollerithallee 8, 30419, Hannover, Germany, s.schlie@lzh.de.
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