Bio-inspired biped microwalker with magneto-acoustic actuation for cell manipulation.

Bio-inspired and multi-modal microrobots have shown great potential in the field of biomedical and tissue engineering in recent years. Motivated by the efficiency and adaptability of nature, bio-inspired designs offer exciting possibilities. Multi-modal actuation systems offer the advantages of versatility and flexibility. Here, we propose a biped magneto-acoustic driven microwalker that can potentially perform micromanipulation. The microwalker mimics the walking motion of biped walkers, driven by oscillating magnetic fields, enabling a straight gait, while the acoustic fields drive the microrobots at high speeds. We demonstrate the microwalker's capability through the manipulation of Chinese Hamster Ovary cells and colloidal particles, highlighting its potential in micromanipulation and biomedical applications.