Science Advances

Supplementary Materials

The PDF file includes:

  • Fig. S1. Sperm tilted orientation in the boundary swimming mode.
  • Fig. S2. Schematic of the model used for lubrication theory.
  • Fig. S3. Sperm intrinsic angular velocity and curvature.
  • Fig. S4. Intrinsic angular velocities measured for sperm when the external flow was zero.
  • Fig. S5. Impact of stricture mouth angle on the butterfly-shaped motion of sperm.
  • Fig. S6. Butterfly-shaped motion of human sperm.
  • Fig. S7. Transfer, rotation, and boundary swimming modes with corresponding times for human sperm.
  • Fig. S8. Threshold sperm velocity versus shear rate of the stricture.
  • References (3540)

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.mp4 format). Sperm intrinsic rotation.
  • Movie S2 (.mp4 format). Movie S2. Bovine sperm swimming on butterfly-shaped paths.
  • Movie S3 (.mp4 format). Movie S3. Human sperm swimming on butterfly-shaped paths.
  • Movie S4 (.mp4 format). Accumulation of the sperm below the stricture.
  • Movie S5 (.mp4 format). Gate-like role of the stricture.

Files in this Data Supplement: