Simultaneous neurite elicitation and elongation from neurons using a microfabricated post array

Mauris N. De Silva, Antonio Baldi, Joseph N. Fass, Babak Ziaie, David J. Odde

Research output: Contribution to journalConference articlepeer-review

Abstract

We report the use of a microfabricated post array with supporting pillars to apply direct mechanical force to initiate and elongate multiple neurites from chick forebrain neurons in vitro. The micropost array was placed on top of the cell culture on a glass cover slip; a gap of 3-5μm was achieved between the tips of the posts and the cell culture surface substrate due to the differential height of the posts and the supporting pillars. After allowing ∼1.5 hours for the cells to adhere to the posts, the post array was moved laterally with respect to the substrate and cells at a constant velocity of 36μm/hr. Several neurite-like cytoplasmic processes initiated from cells that had formed adhesion to the posts, and these neurites elongated in response to further translation. This is the first report of the use of a microfabricated device to simultaneously apply mechanical force to multiple neurons to elicit and elongate neurites. We envision that this technique will enable the construction of living neural networks having defined connectivity.

Original languageEnglish (US)
Pages (from-to)1706-1707
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume2
StatePublished - Dec 1 2002
EventProceedings of the 2002 IEEE Engineering in Medicine and Biology 24th Annual Conference and the 2002 Fall Meeting of the Biomedical Engineering Society (BMES / EMBS) - Houston, TX, United States
Duration: Oct 23 2002Oct 26 2002

Keywords

  • Micropost
  • Neural network
  • Neurites

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