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. Author manuscript; available in PMC: 2010 Feb 7.
Published in final edited form as: Lab Chip. 2008 Nov 18;9(3):404–410. doi: 10.1039/b806689b

Figure 2.

Figure 2

Figure 2

(a) Pictorial representation and (b) phase-contrast image of microtunnel archirtecture, electrode positions and neuronal growth. The electrodes are positioned underneath the PDMS layer. Axonal growth runs perpendicular to each electrode and is physically guided by the long and narrow microtunnels. During plating, neurons also land on top of the microtunnels (indicated by the white circles in (b)).