| 초록 |
PEDOT:PSS hydrogel is a promising material in bioelectronics, because of its mixed ionic-electronic transporting property and tissue like mechanical property. Since biology is composed of ions, the coupled ion-electron conducting system of PEDOT:PSS is the fabulous capability for the high efficient bio-signal transducer. However, PEDOT:PSS is vulnerable to an aqueous state which is analogous to biological system, so that it is hard to secure the long-term stability and efficient bio-signal transducing. Herein, we demonstrate an ethylene oxide based interpenetrating conductive hydrogel network (EO-ICHN) in which PEDOT:PSS and EO based ladder-like networks are physically entangled. The EO-ICHN exhibits improved resistance against water, so that long-term stability is acquired effectively. Moreover, ion compatibility of EO groups in EO-ICHN can improve ion transport, leading to expeditious bio-signal transduction. We believe our novel approach would open up new avenues in bioelectronics. |
