Human sperm accumulation near surfaces: a simulation study

  title={Human sperm accumulation near surfaces: a simulation study},
  author={David. J. Smith and Eamonn A. Gaffney and John R. Blake and Jackson C. Kirkman-Brown},
  journal={Journal of Fluid Mechanics},
  pages={289 - 320}
A hybrid boundary integral/slender body algorithm for modelling flagellar cell motility is presented. The algorithm uses the boundary element method to represent the ‘wedge-shaped’ head of the human sperm cell and a slender body theory representation of the flagellum. The head morphology is specified carefully due to its significant effect on the force and torque balance and hence movement of the free-swimming cell. The technique is used to investigate the mechanisms for the accumulation of… 

A study of spermatozoan swimming stability near a surface.


Sperm swimming in a viscous fluid is simulated numerically by the immersed boundary method and both the familiar travelling-wave and the asymmetric parabola flagellum beatings are simulated.

Hydrodynamics of sperm cells near surfaces.

Two-dimensional slither swimming of sperm within a micrometre of a surface

Using total internal reflection fluorescence microscopy, motile human and bull sperm are selectively imaged located within one micron of a surface, revealing a distinct two-dimensional ‘slither' swimming mode whereby the full cell length is confined within 1 μm of asurface.

Hydrodynamic study of sperm swimming near a wall based on the immersed boundary-lattice Boltzmann method

This paper presents a numerical study on a sperm swimming in a viscous fluid by using an immersed boundary-lattice Boltzmann method (IB-LBM). The sperm is modeled simply by integrating a slender tail

Surface accumulation of spermatozoa: a fluid dynamic phenomenon

A recent 'boundary integral/slender body theory' mathematical model for the fluid dynamics is described, and it is discussed how it gives insight into the mechanisms that may be responsible for the surface accumulation behaviour of sperm cells.

High-precision tracking of sperm swimming fine structure provides strong test of resistive force theory

This theory accurately predicts the complex trajectories of sperm cells from the detailed shape of their flagellar beat across different time scales, consistent with quantitative predictions of resistive force theory.

Modelling bacterial behaviour close to a no-slip plane boundary: the influence of bacterial geometry

Using a boundary-element method used to model the hydrodynamics of a bacterium propelled by a single helical flagellum, it is demonstrated that hydrodynamic forces may trap the bacterium in a stable, circular orbit near the boundary, leading to the empirical observable surface accumulation of bacteria.



A boundary-element analysis of flagellar propulsion

The swimming of a flagellar micro-organism by the propagation of helical waves along its flagellum is analysed by a boundary-element method. The method is not restricted to any particular geometry of

Modelling the motion of particles around choanoflagellates

The three-dimensional particle paths due to a helical beat pattern of the flagellum of a sessile choanoflagellate, Salpingoeca Amphoridium (SA), are modelled and compared to the experimental

The tail movement of bull spermatozoa. Observations and model calculations.

The role of hydrodynamic interaction in the locomotion of microorganisms.

Discrete Cilia Modelling with Singularity Distributions: Application to the Embryonic Node and the Airway Surface Liquid

The first theoretical results showing the mechanism by which rotating embryonic nodal cilia produce a leftward flow by a ‘posterior tilt’ are presented, and a more complex and detailed model of flow patterns in the periciliary layer of the airway surface liquid is developed.

The hydrodynamics of flagellar propulsion: helical waves

  • J. Higdon
  • Environmental Science
    Journal of Fluid Mechanics
  • 1979
The swimming of a micro-organism by the propagation of helical waves on a long slender flagellum is analysed. The model developed by Higdon (1979) is used to study the motion of an organism with a

Three-dimensional motion of avian spermatozoa.

It is suggested that the self-spin phenomenon may be occurring in non-passerine sperm that in some circumstances spin persistently, yet without expressing regular helical waves.

Flagellar movement of human spermatozoa

It is concluded that human spermatozoa in normal Hanks' solution beat with a conical helical waveform having an elliptical cross section, the semiaxes of which have a ratio of 0.2.

Analysis of Flagellar Bending in Hamster Spermatozoa: Characterization of an Effective Stroke

The results indicate that flagellar bending in hamster spermatozoa produces alternate effective and ineffective strokes during propulsion.

Relationships of mammalian sperm motility and morphology to hydrodynamic aspects of cell function.

It was shown that fluid stirring by spermatozoa is an important mechanism of transfer of dissolved ions, molecules, and gases to and from the cell surface and activated hamster sperm stir substantially more fluid than do preactivatedHamster sperm, even though their power outputs are not significantly different.