Bioinspired optical/electrical dual-modal flexible strain sensor with microcrack structure based on fluorescent hydrogel

Key Points

• The dual-modal flexible strain sensor integrates both optical and electrical sensing capabilities, improving versatility.
• Performance tests show a significant increase in sensitivity to strain compared to traditional sensors, with a notable response range.
• Utilizing a microcrack structure within the fluorescent hydrogel enables efficient strain detection through signal variation.
• The findings suggest this bioinspired approach may transform the design of next-generation flexible sensors.