Figure 2From: Integrated sensitive on-chip ion field effect transistors based on wrinkled InGaAs nanomembranes Top view on two IFET devices. (a) Optical microscope images of two devices containing one wrinkled nanochannel each, the electrodes and the microfluidic channels. (b) and (c) are the zoomed images on one device in two different Z-positions focusing on the nanochannel (b) and on the electrodes (c). The unlabeled scale bars are 5 μm.Back to article page