According to Hong Kong media, the Nanotechnology Center of Tel Aviv University in Israel has invented an electronic tattoo that combines skin electrodes with temporary tattoo maps. Previously, Professor Haning of the Nanotechnology Center said that this technology is expected to play a role in public opinion collection, medical treatment and other fields. The electronic tattoo is composed of a carbon electrode, a bonding surface and a nano conductive polymer coating, which can be pasted on the face to read the electrical signals sent by the facial muscles, and then convert the electrical signals into corresponding responses, which is suitable for long-term data monitoring.

This electronic tattoo is actually a skin electrode patch, which can recognize expressions/reactions by sensing electrical signals sent by muscle nerves.