Stretchable artificial skin was printed on a 3D printer. Free Technical Library News

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3D printed stretchable artificial leather

10.07.2021

Scientists at Stanford University have 3D printed stretchable skin that looks like rubber. The new method increases the density of elastic transistors by more than 100 times compared to earlier designs.

Chemical engineer Zhenan Bao and her team of researchers at Stanford have revealed how they printed a stretchable but reusable integrated circuit on rubber materials in a new study.

There are more than 40 transistors per square centimeter of artificial leather, and the team plans to increase this number. It is planned to increase the number of transistors to a billion, which will be enough to create simple circuits for sensors on the skin, as well as implantable bioelectronics.

While working, the scientists used a new process to create flexible circuits: they stretched them parallel and perpendicular to twice their original dimensions. As a result, they did not crack or delaminate. Electrically, the transistors remained stable even after thousands of repeated stretches.

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