**Amy Buchmann
Graduate Student
Department of Applied and Computational Mathematics and Statistics**

**Flow Induced by Bacterial Carpets and Transportof Microscale Loads**

Microfluidics devices carry very small v olumes of liquid though channels and have been used in many biological applications including drug discovery and development. In many microfluidic experiments, it would be useful to mix the fluid within the chamber. However, the traditional methods of mixing and pumping at large length scales don't work at small length scales. Recent experimental work has suggested that the flagella of bacteria may be used as motors in microfluidics devices by creating a bacterial carpet [1]. Mathematical modeling can be used to investigate this idea and to quantify flow induced by bacterial carpets. I will introduce the method of regularized stokeslets [2] and show how this can be implemented to model fluid flow above bacterial carpets and the transport of microscale loads. Model validation and preliminary results will be presented.

[1] N. Darnton, L. Turner, K. Breuer, and H. Berg, Moving fluid with bacterial carpets, Biophys. J., 86 (2004), pp. 1863-1870.

[2] R. Cortez, The method of regularized stokeslets, SIAM J. Sci. Comput., 23 (2001), p. 1204.

**List of Speakers:**

Oct. 1 | Dervis Can Vural - Physics |

Oct. 8 | Tim Weninger - Computer Science and Engineering |

Oct. 15 | Zhangli Peng - Aerospace and Mechanical Engineering |

Oct. 29 | Joel Boerckel - Aerospace and Mechanical Engineering |

Nov. 5 | CANCELLED - Joseph Powers (Rescheduled date TBD) |

Nov. 12 | Ling Xu - Applied and Computational Mathematics and Statistics |

Nov. 19 | Pinar Zorlutuna - Aerospace and Mechanical Engineering |

Dec. 3 | Amy Buchmann - Applied and Computational Mathematics and Statistics |

Dec. 10 | Nicolas Brunel - Department of Statistics and Neurobiology, University of Chicago |