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Electrophoretic Adhesion of Conductive Hydrogels.
Taka-Aki Asoh1, Megumi Nakamura1,2, Tatsuya Shoji2
1Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Macromolecular Rapid Communications
|May 14, 2020
Summary
Researchers developed a new method for adhering conductive hydrogels using an electrophoretic approach. This technique enables strong, reversible adhesion for advanced wearable and implantable devices connecting humans and machines.
Area of Science:
- Materials Science
- Biomedical Engineering
- Polymer Chemistry
Background:
- Next-generation wearable and implantable devices require robust conductive hydrogel adhesion.
- Connecting biological systems and electronic devices necessitates advanced interface materials.
Purpose of the Study:
- To develop an effective adhesion strategy for conductive hydrogels.
- To enable strong and reversible bonding between different types of conductive hydrogels for bio-electronic interfaces.
Main Methods:
- Utilized an electrophoretic approach for conductive hydrogel adhesion.
- Formed polyion complexes at the hydrogel interface for bonding.
- Investigated adhesion between cationic and anionic conductive hydrogels.
Main Results:
- Achieved strong adhesion between cationic and anionic conductive hydrogels.
- Demonstrated that adhered hydrogels maintain conductivity.
- Showcased reversible de-adhesion by salt addition and re-adhesion in aqueous conditions.
Conclusions:
- The polyion complex formation via electrophoresis provides a fundamental technology for connecting soft biological systems and hard machines.
- This innovative adhesion strategy is crucial for developing advanced bio-integrated electronics.
- The reversible nature of the adhesion offers versatility for device fabrication and maintenance.
