Fig. 4: Magnetic-powered propulsion, speed, and various locomotion modes of 1D magnetic photoactive microrobots.
From: Magnetically boosted 1D photoactive microswarm for COVID-19 face mask disruption
a Time-lapse images of 1D microrobot propulsion (right) and an SEM image of the 1D microrobot (left). Scale bar is 2 µm. b, c Average velocities of the 1D microrobots as a function of rotating magnetic field frequency (b) and representative propulsion trajectories (c). Scale bar is 10 µm. d Manual and automated locomotion modes and magnetic swarm boosting for programmed navigation (5 mT, 5 Hz). Scale bars are 10 μm. Data in b are presented as mean ± standard deviation (n = 15).
