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Strong contact coupling of neuronal growth cones with height-controlled vertical silicon nanocolumns.
- Source :
- Nano Research; May2018, Vol. 11 Issue 5, p2532-2543, 12p
- Publication Year :
- 2018
-
Abstract
- In this study, we report that height-controlled vertically etched silicon nano-column arrays (vSNAs) induce strong growth cone-to-substrate coupling and accelerate <italic>In vitro</italic>neurite development while preserving the essential features of initial neurite formation. Large-scale preparation of vSNAs with flat head morphology enabled the generation of well-controlled topographical stimulation without cellular impalement. A systematic analysis on topography-induced variations on cellular morphology and cytoskeletal dynamics was conducted. In addition, neurite development on the grid-patterned vSNAs exhibited preferential adhesion to the nanostructured region and outgrowth directionality. The arrangement of cytoskeletal proteins and the expression of a focal adhesion complex indicated that a strong coupling existed between the underlying nanocolumns and growth cones. Furthermore, the height-controlled nanocolumn substrates differentially modulated neurite polarization and elongation. Our findings provide an important insight into neuron-nanotopography interactions and their role in cell adhesion and neurite development.<graphic></graphic> [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19980124
- Volume :
- 11
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Nano Research
- Publication Type :
- Academic Journal
- Accession number :
- 129572244
- Full Text :
- https://doi.org/10.1007/s12274-017-1878-7