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Stretching tests of the GFET nanosensor. a) Photograph of the stretchable nanosensor extended from 0% (top) to 125% (bottom). Inset is the image of the corrugated structure of the sensor at 0% extension. Scale bar is 100 μm b) Transconductance and carrier mobility of device at the extension ranging from 0 to 125%. c) Transconductance and carrier mobility of the sensor after 0 to 500 tensile cycles at 60% extension. d) Detection of TNF-α protein at different extensions.
