Fig. 7From: Fabrication of polydimethylsiloxane nanofluidic chips under AFM tip-based nanomilling processRelationship between a wall height, b wall width, and transfer parameters (various weight ratio of PDMS) during first transfer process, where the channel molds were fabricated with a normal load of 25 μN and a frequency of 100 Hz, and c typical AFM image and d corresponding cross-section of the wall obtained from nanochannel III at a weight ratio of 5:1Back to article page