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Related Experiment Videos

A parallel-plate flow chamber to study initial cell adhesion on a nanofeatured surface.

Elena Martines1, Kieran McGhee, Chris Wilkinson

  • 1Centre for Cell Engineering, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K. elena@mblab.gla.ac.uk

IEEE Transactions on Nanobioscience
|September 24, 2004
PubMed
Summary

Nanotopography surfaces significantly reduce cell adhesion under dynamic flow conditions. This finding, observed using a novel flow chamber, aligns with previous static culture results, highlighting the impact of surface structure on cell behavior.

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Area of Science:

  • Biomaterials Science
  • Cell Biology
  • Surface Engineering

Background:

  • Cell behavior, including adhesion, migration, and gene expression, is influenced by surface material chemistry and topography.
  • Nanoscale surface topography can be engineered to study cell-surface interactions.
  • Previous research indicated that 100-nm diameter pits on a 300-nm pitch reduce rat fibroblast adhesion in static cultures.

Purpose of the Study:

  • To investigate cell adhesion onto nanopitted surfaces under dynamic flow conditions.
  • To design and utilize a novel parallel-plate flow chamber for real-time observation of cell-nanotopography interactions.
  • To quantify and compare dynamic cell adhesion on nanopitted versus flat polymethylmethacrylate substrates.

Main Methods:

  • A parallel-plate flow chamber with integrated nanotopography was designed and fabricated.

Related Experiment Videos

  • Nanopitted patterns were embossed into polymethylmethacrylate (PMMA) for the flow chamber.
  • Cell suspension was flowed over flat and nanopitted PMMA substrates for 1 hour to quantify dynamic cell adhesion.

    • Main Results:

    • The nanopitted polymethylmethacrylate substrates exhibited significantly reduced cell adhesion compared to flat substrates (p < 0.001).
    • Dynamic cell adhesion was successfully quantified using the developed flow chamber system.
    • Results are consistent with previous findings from static cell culture experiments.

    Conclusions:

    • Engineered nanotopography on surfaces significantly reduces cell adhesion even under dynamic flow conditions.
    • The developed flow chamber allows for effective real-time observation and quantification of cell-surface interactions in a dynamic environment.
    • Surface topography is a critical factor influencing cell adhesion in both static and dynamic biological contexts.