POS8-0829
Amphiphilic Ionogel Enabling Synergistic Universal Interface Adhesion and Reversible Debonding
Topic
S8. Frontiers of Functional Polymers in Biology and Medicine
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
WON HYUK CHOI (Hanyang University)
Co-Author(s)
Abstract
Conventional bioelectronic devices have shown potential for physiological signal monitoring and stimulation, however insufficient interfacial adhesion can cause increased contact resistance, reduced signal-to-noise ratio (SNR), and device instability. Chemical crosslinking strategies have been proposed to improve adhesion, these approaches exhibit limited due to insufficient wet adhesion or irreversible bonding.
We propose a dopamine–cholesteryl–gelatin (DCG) ion gel platform by modifying gelatin with dopamine and cholesteryl groups and incorporating 80 wt% ionic liquid. Dopamine provides strong adhesion at wet interfaces through hydrogen bond, Cholesteryl groups enhance stability through hydrophobic interactions thereby enabling high adhesive strength across universal interfaces and Choline Iodide enables stable detachment by disrupting hydrogen bonding and hydrophobic interactions. This study provides a versatile blueprint for next-generation implantable and wearable bioelectronics.
We propose a dopamine–cholesteryl–gelatin (DCG) ion gel platform by modifying gelatin with dopamine and cholesteryl groups and incorporating 80 wt% ionic liquid. Dopamine provides strong adhesion at wet interfaces through hydrogen bond, Cholesteryl groups enhance stability through hydrophobic interactions thereby enabling high adhesive strength across universal interfaces and Choline Iodide enables stable detachment by disrupting hydrogen bonding and hydrophobic interactions. This study provides a versatile blueprint for next-generation implantable and wearable bioelectronics.
