Tannic acid-iron dual-catalyst-induced polyacrylamide/sericin hydrogel for strain and pressure sensing

Key Points

• The research aims to create a flexible hydrogel that improves adhesion to human skin for enhanced sensing capabilities.
• Developed a hydrogel using tannic acid and iron as dual-catalysts.
• Tested the hydrogel for strain and pressure sensing capacity.
• Evaluated adhesion properties on human skin to enhance performance.
• The dual-catalyst hydrogel showed significantly better adhesion than conventional sensors.
• Demonstrated enhanced sensitivity for both strain and pressure measurements.
• Outperformed existing wearable sensors in signal acquisition performance.