Nanotube Coating Lets Fabrics Detect Pressure

Aug-19-18 A nanocomposite turns fabrics into sensors able to detect pressures ranging from a fingertip touch to being driven over by a forklift.

A team from the University of Delaware developed the sensors, which are made up of a standard piece of material like cotton or wool that has been bonded with a carbon nanotube composite coating. The lightweight, breathable coating is thinner than a sheet of paper, and will register deformation as a change in electrical resistivity measured via a low-voltage current. The pressure-reading coating could have a range of applications, from tracking gait to monitoring post-surgical recovery.

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