Healthcare Wearable Sensors Adhesion to Human Fingernails and Toenails

Area of Science:

• Biomedical Engineering
• Wearable Technology
• Sensor Development

Background:

• Wearable sensors offer continuous health and disease monitoring during daily life.
• Fingertip placement is ideal for sensors due to high interaction with the environment.
• Attaching sensors to fingernails mimics cosmetic artificial nails for user convenience.

Purpose of the Study:

• To develop a novel adhesion method for wearable healthcare sensors on fingernails.
• To ensure sensor functional requirements, biological compatibility, and environmental safety.
• To facilitate rapid sensor attachment and removal for diverse user applications.

Main Methods:

• Investigated sensor attachment and removal structures and methods.
• Evaluated cosmetic nail glue for initial sensor adhesion.
• Developed a novel structure and method for rapid sensor application and detachment.

Main Results:

• Cosmetic nail glue provided strong adhesion but required lengthy acetone-based removal.
• The novel method allows for sensor attachment and removal within seconds.
• The new approach meets functional, biological, and environmental safety objectives.

Conclusions:

• A novel fingernail sensor adhesion method offers rapid, safe, and user-friendly application and removal.
• This technology enhances the feasibility of wearable healthcare sensors for continuous monitoring.
• The developed method balances sensor performance with user safety and convenience.