Publications by authors named "Daiki Tachibana"
Direct Wiring of Liquid Metal on an Ultrasoft Substrate Using a Polyvinyl Alcohol Lift-off Method.
ACS Appl Mater Interfaces
February 2022
Article Synopsis
- Recent advancements in wearable and implantable devices have focused on using ultrasoft materials like biological tissues and hydrogels, with Ga-based liquid metals (LMs) being a promising option due to their biocompatibility and softness.
- The study successfully demonstrated transferring liquid metal paste onto these ultrasoft substrates using a polyvinyl alcohol (PVA) film, which allowed for precise, stable wiring patterns, including three-dimensional structures.
- Notably, the method enabled effective nerve stimulation in rats and successful integration of a temperature measurement system, highlighting potential applications in advanced electric devices.
In this study, a highly transformable electrocardiograph that can considerably deform the position of stretchable electrodes based on the lead method for diagnosing heart disease was developed; these electrodes exhibited high resistance stability against considerable stretching and multiple stretching. To realize the large deformable functionality of the electrodes of a system, liquid metal electrodes and a heteroconnector composed of a liquid metal paste and carbon-based conductive rubber were employed. The developed device can achieve a 200% strain with only 6% resistance change and a high stability of resistances after the 100-time stretching test.
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