University of Cambridge > Talks.cam > Theoretical Chemistry Informal Seminars > Dynamics of a bacterium moving by chemotaxis in its own secretion

Dynamics of a bacterium moving by chemotaxis in its own secretion

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Extra seminar

The brownian dynamics of a single bacterium coupled by chemotaxis to a diffusing concentration field which is secreted by the particle itself is studied by computer simulations in spatial dimensions d = 1, 2, 3. Both cases of a chemoattractant and a chemorepellent are discussed. For a chemoattractant, we find a transient dynamical arrest until the particle diffuses for long times. For a chemorepellant, there is a transient ballistic motion in all dimensions and a long-time diffusion. These results are interpreted with the help of appropriate arguments and theoretical analysis.

This talk is part of the Theoretical Chemistry Informal Seminars series.

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