The material allows users to create custom electronics and interact with technology through intuitive gesture. It also allows information to be sent on the surface of the skin from person to person or person to object.
The formulation is carbon based and water-soluble: skin-safe and non-invasive. It may be applied in a number of ways including brushing on, stamping or spraying and has future potential for use with conventional printing processes on the body.
I'm reminded of the (still-conceptual) animated tattoos depicted here.