Fig. 5: Multifunctionality and generalization.
From: Bio-inspired multimodal soft actuator with environmental self-adaptation
A PIV analysis with enhanced airflow during undulation and the formation of a vortex during oscillation. B Different aquatic interactions between the asymmetric actuator and particles during undulation and oscillation. C Contact-separation mechanism during undulation for cyclic voltage output. D Comparison of TENG voltage outputs between undulation and oscillation under varying conditions. E Temperature-dependent variation of TENG voltage output. F Broad-spectrum operation of the asymmetric actuator. G The selective and erasable coating for the asymmetric actuator.
