DNA-inspired fiber enhances sensors for wearables

Researchers at Shinshu University, Nagano Prefecture, Japan, have developed a new design for a fiber sensor inspired by the shape of DNA, which the researchers have found to be more durable and flexible. 

Traditional fiber sensors have electrodes at both ends, which often fail under repeated movement when placed on body joints. The proposed double-helical design places both electrodes on one end, allowing the sensor to endure repeated stretching and movement, effectively addressing a key limitation of conventional wearable sensors.

Flexible fiber sensors are widely used in smart wearables, as their compact size and lightweight feel make them suitable for everyday use. However, current designs, commonly placed at joints, face limited application due to mechanical challenges. Traditional fiber sensors with electrodes at both ends are vulnerable when applied to joints like fingers or knees, where repeated movement pulls on connecting wires, causing them to break loose or produce measurement inaccuracies.

Source: www.shinshu-u.ac.jp/english/topics/2025/04/dna-inspired-design-.html via msn.com