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Bending tests of the GFET nanosensor. a) The nanosensor is wrapped around a glass tube with a radius of 0.4 mm. b) Transconductance and carrier mobility of the sensor on tubes with different radii. c) Transconductance and carrier mobility of the nanosensor bent with a radius of ≈500 μm after 0 to 200 bending cycles. d) Detection of TNF-α at a concentration ranging from 0.05 to 100 × 10−9 M on tubes with different radii.
