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Morphology of living cells cultured on nanowire arrays with varying nanowire densities and diameters

Author:
  • Zhen Li
  • Henrik Persson
  • Karl Adolfsson
  • Stina Oredsson
  • Christelle N. Prinz
Publishing year: 2018-04-02
Language: English
Pages: 427-435
Publication/Series: Science China Life Sciences
Volume: 61
Issue: 4
Document type: Journal article
Publisher: Science in China Press

Abstract english

Vertical nanowire arrays are increasingly investigated for their applications in steering cell behavior. The geometry of the array is an important parameter, which influences the morphology and adhesion of cells. Here, we investigate the effects of array geometry on the morphology of MCF7 cancer cells and MCF10A normal-like epithelial cells. Different gallium phosphide nanowire array-geometries were produced by varying the nanowire density and diameter. Our results show that the cell size is smaller on nanowires compared to flat gallium phosphide. The cell area decreases with increasing the nanowire density on the substrate. We observed an effect of the nanowire diameter on MCF10A cells, with a decreased cell area on 40 nm diameter nanowires, compared to 60 and 80 nm diameter nanowires in high-density arrays. The focal adhesion morphology depends on the extent to which cells are contacting the substrate. For low nanowire densities and diameters, cells are lying on the substrate and we observed large focal adhesions at the cell edges. In contrast, for high nanowire densities and diameters, cells are lying on top of the nanowires and we observed point-like focal adhesions distributed over the whole cell. Our results constitute a step towards the ability to fine-tune cell behavior on nanowire arrays.

Keywords

  • Nano Technology
  • Cell Biology
  • aspect ratio
  • cell
  • density
  • diameter
  • morphology
  • nanowires

Other

Published
  • ISSN: 1674-7305
Stina Oredsson
E-mail: stina [dot] oredsson [at] biol [dot] lu [dot] se

Professor

Functional zoology

+46 46 222 94 97

B-C208

4

Principal investigator

LUCC - Lund University Cancer Centre

Research group

Animal Physiology

Projects

Cell proliferation

Doctoral students and postdocs

PhD Students, main supervisor

Wendy Soria Sotillo

PhD Students, assistant supervisor

Atena Malakpour Permlid