IMPLANTABLE FLEXIBLE SENSOR BASED ON ALIGNED-CARBON NANOTUBES FOR BLOOD PRESSURE MONITORING

This paper presents a carbon nanotube (CNT)-based flexible capacitive sensor to measure the pressure within an aneurysm sac after an EVAR (endovascular repair) procedure. Given the specifications of EVAR, the device must be foldable, extremely flexible and characterized by a very small profile. Aligned-CNTs embedded in a flexible substrate of polydimethylsiloxane (PDMS) are used to fabricate the elements of the capacitive sensor. Fabricated sensors prototypes validate our approach and show that A-CNTs/PDMS layered composites can be used to create highly flexible pressure sensors