Screening by Symmetry of Long-Range Hydrodynamic Interactions of Polymers Confined in Sheets

@article{Tlusty2006ScreeningBS,
  title={Screening by Symmetry of Long-Range Hydrodynamic Interactions of Polymers Confined in Sheets},
  author={Tsvi Tlusty},
  journal={Macromolecules},
  year={2006},
  volume={39},
  pages={3927-3930}
}
  • T. Tlusty
  • Published 6 May 2006
  • Chemistry, Physics
  • Macromolecules
Hydrodynamic forces may significantly affect the motion of polymers. In sheetlike cavities, such as the cell's cytoplasm and microfluidic channels, the hydrodynamic forces are long-range. It is therefore expected that that hydrodynamic interactions will dominate the motion of polymers in sheets and will be manifested by Zimm-like scaling. Quite the opposite, we note here that although the hydrodynamic forces are long-range, their overall effect on the motion of polymers vanishes due to the… 

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References

SHOWING 1-2 OF 2 REFERENCES
The Theory of Polymer Dynamics
Introduction Static properties of polymers Brownian motion Dynamics of flexible polymers in dilute solution Many chain systems Dynamics of a polymer in a fixed network Molecular theory for the
Low Reynolds number hydrodynamics
Low Reynolds number flow theory finds wide application in such diverse fields as sedimentation, fluidization, particle-size classification, dust and mist collection, filtration, centrifugation,