Research on Material and Morphological Structure of Venus Flytrap Trigger Hair

Abstract Venus flytrap can sense the very small insects that touch its tactile receptors, known as trigger hairs, and thus capture prey to maintain nutrient demand. However, there are few studies on hair morphological structure material properties not fully understood. In this study, is systematically characterized with help of different instruments. Results show a special cantilever beam it has large longitudinal diameter ratio. Besides, composed lever basal podium, notch near base. The cross-section approximately honeycomb structure, which many holes. Methods measure mechanical introduced in paper. Based tests, proved be variable stiffness shows high sensitivity external force. These features provide supports for understanding high-sensitivity sensing mechanism hairs from perspective material, offer inspirations development high-performance sensors.