Ultraconformal Skin-Interfaced Sensing Platform for Motion Artifact-Free Monitoring

Area of Science:

• Materials Science
• Biomedical Engineering
• Wearable Technology

Background:

• Skin-interfaced bioelectronics offer promising human health monitoring.
• Signal accuracy is often compromised by body movements and skin deformations.
• Existing sensors struggle with reliability due to motion artifacts.

Purpose of the Study:

• To develop an ultraconformal, motion artifact-free skin bioelectronic sensing platform.
• To enable high-quality physiological data acquisition resistant to skin deformation.
• To create a multifunctional platform for health monitoring and human-machine interfaces.

Main Methods:

• Fabrication using a user-friendly laser patterning approach.
• Utilizing a conductive membrane of Ag/Cu@Cu core-shell nanoparticles that deforms with water.
• Developing a platform with highly conductive and stretchable interconnects.

Main Results:

• Achieved conformal skin contact through partial dissolution and local deformation of the membrane.
• Demonstrated improved electrophysiological signal capture during various skin deformations.
• Successfully integrated the platform into a functional pulse oximeter.

Conclusions:

• The developed platform provides reliable sensing of physiological signals, overcoming motion artifacts.
• Its conformability, multifunctionality, and ease of removal enhance its applicability for diverse populations.
• The technology enables advanced health monitoring and novel human-machine interfaces.