Hydrogen-Bonded Organic Framework Films Integrated with Wavy Structured Design for Wearable Bioelectronics

Area of Science:

• Materials Science
• Biomedical Engineering
• Nanotechnology

Background:

• Hydrogen-bonded organic frameworks (HOFs) offer potential for health monitoring due to porosity and biocompatibility.
• Fragile HOFs limit integration with flexible electronics and wearable applications.
• Mechanical mismatch between HOFs and skin hinders real-time health monitoring.

Purpose of the Study:

• To develop a wearable epidermal biosensor using HOFs for real-time health monitoring.
• To address the mechanical fragility of HOFs in flexible electronic applications.
• To demonstrate ultrasensitive detection of sweat nutritional content.

Main Methods:

• Integration of HOFs films with wavy bioelectrodes to create a flexible biosensor.
• Testing sensor performance under extreme deformation and environmental conditions.
• Evaluating the regeneration capability of HOFs films via solvent rinsing.

Main Results:

• The epidermal biosensor exhibits reliable sensing under extreme deformation.
• Ultrasensitive detection of sweat nutritional content with a limit of detection of 49.64 nM.
• Sensor performance is comparable to high-performance liquid chromatography (HPLC).
• Regenerable HOFs films offer a reusable and advantageous sensing material.

Conclusions:

• This work presents a flexible HOFs-based biosensor for personalized healthcare and real-time monitoring.
• The developed biosensor overcomes mechanical limitations of traditional HOFs for wearable applications.
• Regenerable HOFs films pave the way for sustainable and advanced electronic devices.