Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Pumping fluids with periodically beating grafted elastic filaments.

Yong Woon Kim1, Roland R Netz

  • 1Physics Department, Technical University Munich, 85748 Garching, Germany.

Physical Review Letters
|May 23, 2006
PubMed
Summary

We simulated beating semiflexible filaments to optimize fluid pumping. Hydrodynamic coupling between filaments autonomously enhances pumping efficiency when they phase lock.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Microscopic structure and dynamics of interfacial water at fluorinated vs nonfluorinated surfaces-Insights from ab-initio simulations and IR spectroscopy.

The Journal of chemical physics·2026
Same author

Cation-Induced Interphasial Viscosity Variations on Gold Electrocatalysts in Nanoconfined Aqueous Electrolytes.

Journal of the American Chemical Society·2026
Same author

Sub-diffractional infrared absorption of two-dimensional water.

Nature communications·2026
Same author

Multipolar electric and magnetic contributions to sum-frequency generation spectra reveal biaxial interfacial water structure.

Nature communications·2026
Same author

The importance of layer-dependent molecular twisting for the structural anisotropy of interfacial water.

Science advances·2026
Same author

Hierarchical friction memory leads to subdiffusive configurational dynamics of fast-folding proteins.

Proceedings of the National Academy of Sciences of the United States of America·2026

Area of Science:

  • Fluid dynamics
  • Biophysics
  • Computational physics

Background:

  • Semiflexible filaments are crucial in biological systems.
  • Understanding their collective behavior is key to applications like microfluidics.
  • Simulating their interactions requires advanced computational methods.

Purpose of the Study:

  • To investigate the pumping efficiency of an array of periodically beating semiflexible filaments.
  • To identify optimal conditions for filament-driven fluid transport.
  • To explore the role of hydrodynamic interactions and phase locking.

Main Methods:

  • Brownian dynamics simulations were employed.
  • Full hydrodynamic interactions were considered for filaments and the surface.
  • Filament beating was driven by periodic torques.

Main Results:

  • Optimal pumping efficiency was achieved at a specific ratio of applied torques and filament persistence length.
  • Neighboring filaments autonomously synchronized their beating patterns (phase locking).
  • Hydrodynamic coupling significantly enhanced the overall pumping efficiency.

Conclusions:

  • Collective, synchronized behavior of filaments can dramatically improve fluid pumping.
  • The findings provide insights into designing efficient micro-scale fluid transport systems.
  • Filament persistence length and torque ratio are critical parameters for optimizing pumping.

Related Experiment Videos