Graphene is developing new "professions"

Graphene continues to amaze scientists with new possibilities. Origami and kirigami is the Japanese art of carving fancy paper figures. Scientists at Cornell University in New York decided to apply it to graphene leaves. The result is flexible and stretchable electronic components.

Scientists first imitated some of the mechanical properties of graphene on a sheet of ordinary paper. To create graphene structures, they used micromanipulators - special needles with remote control.

According to one of the leading researchers, Professor Paul McEwen, the stretching of the paper was almost identical to that of a graphene leaf. The kirigami technique in this case can be used to create miniature movable graphene electrodes, springs and loops.

Unlike metal parts, which lose their properties at significant bends, graphene ones are very reliable. Any deformations, including stretching hundreds of times, practically do not affect the quality of operation of such electronic devices.

One of the promising areas of using flexible electronics can be the creation of wearable devices for studying the activity of nerve cells and miniature robots. Nicola Pugno, professor at the Department of Solid Materials and Structural Mechanics at the University of Trento, proposed to create a balance based on a graphene spring:

“To measure body weight, you need to attach it to a spring and measure the resulting elongation. Knowing the stiffness of the spring, you can easily calculate its weight. "