Figure 5From: Integrated sensitive on-chip ion field effect transistors based on wrinkled InGaAs nanomembranes Schematic diagram representing a cross section of one transistor device. The two reservoirs are mainly separated by the SU-8 photoresist barrier and are only connected by the nanochannel. The top PDMS lid seals the entire system and avoids rapid liquid evaporation. The electrodes are electrically isolated by an Al2O3 layer (bright blue).Back to article page