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. Author manuscript; available in PMC: 2015 Apr 12.
Published in final edited form as: Lab Chip. 2013 Feb 21;13(4):522–526. doi: 10.1039/c2lc40954b

Fig. 4.

Fig. 4

Liquid metal electrodes align to an axonal channel to depolarize axons. (A) Schematic of the axon-stim chamber. (B) Neuronal growth within the device. Axons are visible extending into the axonal channel in fluidic contact with the liquid metal electrodes. Scale, 50 μm. (C) An example of an axon labelled with Fluo-4 calcium indicator dye within the axon channel. Color lookup table, “Fire”. Scale bar, 20 μm. (D) Fluo-4 intensity within an axonal ROI over time. (E) Surface intensity maps at different time points for the axonal ROI.