Fig. 9From: Fabrication of polydimethylsiloxane nanofluidic chips under AFM tip-based nanomilling processElectric current measurement results based on the fabricated nanochannel devices, the cross-section size (depth × width) of nanochannels for nanofluidic chip A, B, and C are 60 × 500 nm, 80 × 680 nm and 120 × 690 nm, respectively. a Current in microchannels. b Current in nanochannels. The insets display the schematic sketches of the measurementsBack to article page