| 초록 |
The recent advances of tactile sensors for medical applications have enabled the real-time measurement of physiological signals. In particular, ionogel has been widely used as a tactile sensor due to the nature of its flexibility and ionic conductive property. However, these pressure sensors have drawbacks as the limitations of structural deformation leads to low sensitivity, the dermal toxicity of artificial ions. To overcome these issues, we developed highly mechanosensitive, biocompatible artificial ion channel composed of a chitosan and choline-derived ionic liquids, which indicates non-cytotoxicity on the live cell. The mechanism in which the hydrogen bond triggered ion trap and release behavior enables higher sensitivity compared to the conventional geometrical change mechanism. The novel design of biocompatible ion channel is extremely effective in detecting subtle signals from the body, and it is expected to be utilized as an implantable device for health monitoring system. |
