Figure 3From: Shrinking of Solid-state Nanopores by Direct Thermal Heating High temperature shrinking process. (a) TEM micrograph of ~270 nm diameter nanopore before shrinking. (b) TEM micrograph of nanopore after 4 min of thermal shrinking at 1250°C. The pore closed in just 4 min due to high shrinkage rate. The shrinking rate was about 70 nm/min.Back to article page