Ethylene Oxide based Interpenetrating Conducting Polymer Networks for Highly Stable Bio-signal Transduction in Aqueous Environment
발표자
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초록
내용
PEDOT:PSS is a promising conducting polymer in bioelectronics, because of its mixed electronic and ionic transporting property. Since biological environment is dominated by ions, the coupled ion-electron conducting system is a prominent capability for high efficient bio-signal transducer. However, PEDOT:PSS is swelling and dissolving by aqueous media which is analogous to biological system, so that it is hard to secure long-term stability when PEDOT:PSS is adopted in bio-signal processing device. Herein, to overcome the obstacle, we demonstrate interpenetrating conducting polymer network (ICPN) by reconciling ethylene oxide (EO) based network and PEDOT:PSS. The EO network allows PEDOT:PSS to obtain superior physical and chemical endurance, so that long-term stability in aqueous media can be achieved. Moreover, ion transport in the ICPN can be more improved by ion compatibility of the EO structure. We believe that our approach will provide a guideline for next-generation bioelectronics.