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Article Abstract
The purpose of this study was to investigate the effect of microstructured material surface on cell adhesion and locomotion in real-time. ArF excimer laser direct-writing ablation was used to fabricate microwell patterns with precise control of size and spacing on glass. The influence of the ablation process parameters (laser fluence, pulse number and repetition rate) on the micromachining quality (depth, width, aspect ratio and edge effects) of the microwells was established. Human fibroblast cells, as an example of anchorage-dependent cells, were seeded onto the microstructured glass substrate and time-lapse microscopy was used to study cell adhesion and locomotion. The interaction with microstructured materials resulted in fibroblast cell repulsion and the cells exhibited a higher locomotion speed (75.77±3.36 μm/h) on the structures in comparison with plane glass control (54.01±15.53 μm/h). Further studies are needed to firmly establish the potential of microstructuring, for example, in elongating the life spans of implantable devices.
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| http://dx.doi.org/10.1016/j.colsurfb.2010.12.007 | DOI Listing |
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