[13a-4F-1~10] 12.3 Functional Materials and Novel Devices

△ [13a-4F-7] Development of stretchable electrode-hydrogel hybrid sheet for biomedical applications

〇(M1)DAIKI OKABE¹, SYUN CHIHARA¹, KUNIAKI NAGAMINE¹, HIROYUKI KAI¹, HIROKAZU KAJI¹, MATSUHIKO NISHIZAWA¹ (1.Tohoku Univ)

Keywords:conductive polymer

Hydrogel-based, molecular permeable electronic devices are considered to be promising for electrical stimulation and recording of living tissues, either in vivo or in vitro. This study reports the fabrication of the hydrogel-based devices that remain highly electrically conductive under substantial stretch and bending. Using a simple technique involving a combination of chemical polymerization and electropolymerization of poly (3,4-ethylenedioxythiophene) (PEDOT), a tight bonding of a conductive composite of PEDOT and polyurethane (PU) to an elastic double-network hydrogel is achieved to make fully organic PEDOT/PU–hydrogel hybrids.