This study introduced a hypersensitive, flexible, and stretchable sensor by combining microcracks with meta-structures in an innovative way. The advanced technology enables real-time stroke diagnosis through continuous blood flow monitoring, opening new possibilities in the field of precision biomedical engineering.
The results of this study were published online on December 20 in Science Advances.
Flexible and stretchable strain sensors detect biomechanical signals or deformation of specific objects based on changes in the electrical resistance of conductive materials.
However, previous sensors are limited by low sensitivity and a significant decline in performance when measuring infinitesimal strains below 10−3. This limitation poses critical challenges in the early diagnosis of diseases associated with mechanical physiological signals, as well as in structural reliability assessments and preemptive safety evaluations.