Figure 5. Extracellular Pertussis Toxin recording from nanoFETs with different projection area. (a) Schematic illustrating the chip design incorporating graphene and SiNW FET devices; (b) Optical microscope image of PDMS/cells interfaced with large flake graphene FET. Graphene flake outline is marked by white dashed line; measured device is marked by red arrow. Scale bar is 30 μm; (c) Optical microscope image of PDMS/cells interfaced with smaller flake graphene FET and SiNW FET. Graphene flake outline is marked by white dashed line, measured graphene device is marked by red arrow, and measured SiNW device is closed community marked by blue arrow. Scale bar is 13.6 μm; (d) Recorded averaged peak (red) and raw data (gray traces) for the Gra1-FET and cell in b; (e) Thirteen raw signal peaks (gray traces) from the Gra2-FET (upper data) and SiNW FET (lower data) devices marked by red and blue arrows, respectively in c. The average of the peaks was plotted in red and blue, respectively. Reprinted with permission from Ref. [37]. Copyright 2010 American Chemical Society.Figure optionsDownload full-size imageDownload high-quality image (485 K)Download as PowerPoint slide
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