In order to increase the human-machine interactions, scientists have created a fast and inexpensive new method to develop an electronic skin that can aid robots and prosthetic devices to attain abilities akin to human skin. The new electronic skin would be able to detect pressure, temperature and other sensations that allow tactile interactions with the environment.

The new method, developed by researchers from the Carnegie Mellon University in the US and Portugal's University of Coimbra, can create an ultrathin, stretchable electronic skin, which could be used for a variety of human-machine interactions, by producing thin-film circuits with integrated microelectronics.

These electronic skins could be used for many applications, including:

A major challenge is transferring ultrathin electrical circuits onto complex 3D surfaces and then having the electronics be bendable and stretchable enough to allow movement.

But in the new approach reported in the journal ACS Applied Materials and Interfaces:

The team then transferred the electronic tattoo to various objects and demonstrated several applications of the new method, such as controlling a robot prosthetic arm, monitoring human skeletal muscle activity and incorporating proximity sensors into a 3D model of a hand.

Previously, some scientists developed flexible "electronic tattoos" for this purpose but their production is typically slow, expensive and requires clean-room fabrication methods such as photolithography.

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