Fig. 2: Images of fabricated microactuators and self-clearing GDD.

a Digital photograph of the fabricated magnetic microactuators. Scale bar = 200 μm b The deflected microactuator with different directional magnetic flux density with 13.7 mT. Scale bar = 200 μm. c Digital photographs of the integrated microactuators in the lumen of a prototype GDD microtube. Scale bar = 500 μm