Graphene-doped silicone makes tough wearable flexible sensor: Page 2 of 2

March 09, 2020 //By Julien Happich
flexible sensor
Researchers from the University of Waterloo have combined 3D-printing with in-mold graphene inclusion to yield graphene-doped porous silicone pads usable as tough flexible pressure sensors sensitive to the faintest deformations.

For the sensors tested, the paper reports a gauge factor as high as 10 within the compressive strain range of 2 to 10%, making them suitable for detecting even the small deformations resulted by the human pulse. The biocompatible material and the 3-D printing process enable custom-made devices to precisely fit the body shapes of users, while also improving comfort compared to existing wearable devices and reducing manufacturing costs due to simplicity, claim the researchers.

Because the flexible sensor’s sensitivity can easily be tuned (through the internal shape of the interconnected pore surfaces), it could be engineered for many different applications, from smart insoles to wearable wrist-worn pulse sensors or embedded into smart garments for monitoring walking and running activities.

University of Waterloo - msam-uwaterloo.ca

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