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. Author manuscript; available in PMC: 2017 Jan 13.
Published in final edited form as: Chem Rev. 2015 Dec 21;116(1):215–257. doi: 10.1021/acs.chemrev.5b00608

Figure 25.

Figure 25

(a) Image of experimental setup for NW FET/heart interface and recording. Arrows denote the positions of heart (red), Ag/AgCl reference electrode (yellow), and source/drain interconnect wires (blue), respectively. (b) Top: Magnified image of heart on the device. Bottom: Zoom-in view of the dotted region in upper image, showing three pairs of NWs with the orientation along the vertical red lines. (c) Parallel recordings made using a glass pipette (black) and NW FET (red). (d) Peak conductance amplitude (red) and calibrated peak voltage amplitude (blue) as a function of gate voltage. (e) Image of a complete chip on a flexible Kapton substrate, where the central dashed box denotes the position of NW FETs. (f) Measured signals at gate of −0.2 V. Reprinted with permission from Ref. 571. Copyright 2009 American Chemical Society.