The challenge for electronic skin, being developed for use in artificial skins or humanlike robots like the humanoids, is to make it feel the temperatures and movements like how human skin feels them as much as possible. So far, there are electronic skins that can detect movement or temperature separately, but none are able to recognize both simultaneously like the human skin. A joint research team consisting of POSTECH professor Unyong Jeong and Dr. Insang You of the Department of Materials Science and Engineering, and Professor Zhenan Bao of Stanford University have together developed the multimodal ion-electronic skin that can measure the temperature and mechanical stimulation at the same time. The research findings, published on November 20th edition of Science, are characterized by making very simple structures through applying special properties of the ion conductors. There are various tactile receptors in the human skin that can detect hot or cold temperatures as well as other tactile sensations such as pinching, twisting or pushing.