Related Experiment Video
Updated: May 16, 2025
05:57
Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing
Published on: March 17, 2023
1.9K
Robustly Repeatable, Permeable, and Multi-Axially Stretchable, Adhesive Bioelectronics With Super-adaptive Conductive
Gyun Ro Kang1, Gui Won Hwang1, Dohyun Lim1
1School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|March 31, 2025
Summary
This study introduces a new wearable bioelectronic device with an octopus-inspired adhesive. It ensures stable, stretchable, and repeatable skin adhesion for reliable health monitoring, even on wet skin.
Area of Science:
- Materials Science and Engineering
- Bioelectronics
- Wearable Technology
Background:
- Wearable bioelectronics are crucial for continuous health monitoring but face challenges with adhesive interfaces on dynamic skin.
- Existing adhesives often suffer from delamination, signal degradation, and lack adaptability to skin's continuous deformation.
- Need for robust, repeatable, and permeable adhesives for reliable performance on wet and deforming skin surfaces.
Purpose of the Study:
- To develop a highly adaptable bioelectronic device with robust, repeatable, and biocompatible adhesive interfaces for dynamic wet skin.
- To overcome limitations of current adhesives in wearable bioelectronics, ensuring reliable signal acquisition.
- To enable advanced wearable systems and human-machine interfaces through improved skin-adhesive interactions.
Main Methods:
- Integration of a conductive softened-double-layered octopus-inspired nanocomposites adhesive and kirigami metastructure (cs-OIA_k).
- Characterization of cs-OIA_k for skin-like softness, electrical stability (<10% resistance change over 10,000 cycles), and omnidirectional stretchability (up to 200%).
- Evaluation of hierarchical structural design for repeatable adhesion (>10,000 cycles) and reversible adhesion on dynamically deforming surfaces without skin irritation.
Main Results:
- The cs-OIA_k achieved skin-like softness, excellent electrical stability, and 200% omnidirectional stretchability.
- Demonstrated repeatable robust adhesion (>10,000 cycles) and reversible adhesion on surfaces with 30-100% deformation.
- Successfully achieved reliable electrocardiogram (ECG) and electromyogram (EMG) signal measurements under extreme skin deformation (e.g., shoulder movements).
Conclusions:
- The developed skin-adhesive bioelectronics demonstrate high adaptability, robustness, and biocompatibility for dynamic wet skin surfaces.
- The octopus-inspired adhesive with kirigami metastructure overcomes critical challenges in wearable bioelectronic interfaces.
- This approach offers significant advancements for developing next-generation wearable systems and human-machine interfaces.
