Fig. 4: Demonstration of the vibration manipulation and object transportation using the droplet-based mechanical transducers.
From: Droplet-based mechanical transducers modulated by the symmetry of wettability patterns
a The three-layer architecture is placed on the bare stage and collapses when the vibration amplitude is 276 μm. b Using a mechanical transducer with a circle array, the horizontal vibration is enhanced and makes the architecture collapse at a vibration amplitude of 160 μm. c The vibration is weakened by the gourd-arrayed mechanical transducer, which stabilizes the architecture and increases the critical amplitude to 481 μm. d Integrating the symmetric and asymmetric droplet deformation into a mechanical transducer using a circle-gourd array can transport the object directionally. e Symmetric tilting of the upper plate to localize the object using a M-gourd array. f The actuation ability comparison of the mechanical transducers.
