Science Advances

Supplementary Materials

The PDF file includes:

  • Fig. S1. Fabrication process of microswimmers.
  • Fig. S2. Optical microscopic image of an uncoated microswimmer floating in water.
  • Fig. S3. Experimental distribution of the resonant frequency of microswimmers and theoretical calculation.
  • Fig. S4. Characterization of the resonant frequencies of a small microswimmer (a = 1 μm).
  • Fig. S5. Schematic of the response of an uncoated microswimmer in the fluidic chamber.
  • Fig. S6. HeLa cell viability assay.
  • Fig. S7. Scanning electron microscopy image of tailed microswimmers.
  • Fig. S8. Measurement of the acoustic pressure with a hydrophone at a distance of ~13 mm from the surface of the silicon wafer, the input voltage was 10 Vpp.
  • Fig. S9. Simulated and experimental streaming patterns.

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.mp4 format). The self-rotation of a microswimmer responding to an acoustic field.
  • Movie S2 (.mp4 format). The magnetic field–initiated steerable translational motion of a microswimmer.
  • Movie S3 (.mp4 format). An individual microswimmer traveled different distances in 2 s under the same acoustic pressure but with different tilt angles.
  • Movie S4 (.mp4 format). Two microswimmers were propelled independently in the mixture by changing the direction of a magnetic field.
  • Movie S5 (.mp4 format). Separation of two adjacent silica particles with the microswimmer in its pushing mode.
  • Movie S6 (.mp4 format). Transport of particles with the microswimmer in its pulling mode.
  • Movie S7 (.mp4 format). Patterning particles in the shapes of letters PSU by a microswimmer.
  • Movie S8 (.mp4 format). A microswimmer climbing up and down a stairway.
  • Movie S9 (.mp4 format). A tailed microswimmer free swimming in 3D.

Files in this Data Supplement: