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Area of Science:

  • Biophysics
  • Cell Biology
  • Microbiology

Background:

  • Many single-celled organisms exhibit speeds and accelerations surpassing multicellular animals.
  • Cellular machines integrate complex functions like energy storage, actuation, and dissipation within a single cell.

Purpose of the Study:

  • To map and compare ultrafast motility across diverse single-celled organisms.
  • To establish a unified framework for cellular actuation and energy dissipation mechanisms.
  • To summarize the functional roles of extreme cellular motility.

Main Methods:

  • Review of existing literature on ultrafast cellular motility.
  • Quantitative comparison of speed, acceleration, and strain rates in single cells.
  • Framework development for trigger, actuation, and dissipation mechanisms.

Main Results:

  • Identification of diverse single-celled organisms employing ultrafast motility.
  • Quantitative data on extreme cellular performance metrics.
  • Generalization of actuation and dissipation strategies in a unified model.

Conclusions:

  • Ultrafast cellular motility is a widespread phenomenon across the tree of life.
  • Understanding these cellular machines provides insights into extreme biophysics.
  • Diverse biological functions are enabled by these high-performance cellular systems.