Shoe insole with MWCNT-PDMS-composite sensors for pressure monitoring

This contribution presents a flexible, thin shoe insole of less than 1 mm thickness, which can be used to monitor pressure at a human foot. On this insole, six single sensors based on a multi-walled carbon nanotube-polydimethylsiloxane composite are placed on distinct positions to measure the pressure at the forefoot, midfoot, hallux and heel. Within this work the fabrication of the composite as well as the functionalized insole and the data acquisition under pressure is shown. With such an insole foot ulceration can be prevented or gait analysis can be carried out by pressure monitoring.