Biophysics Seminar

semester, 2009


Tuesday, September 15th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
Speaker: J. H. Broadhurst, University of Minnesota
Subject: Contraction of voluntary (skeletal) muscle fibers

Tuesday, September 22nd 2009
2:30 pm:
Biophysics Seminar in 166 Physics
Speaker: Boris Shklovskii, University of Minnesota
Subject: Virus Physics

Tuesday, September 29th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
Speaker: Joachim Mueller, University of Minnesota
Subject: To be announced.

Tuesday, October 6th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
Speaker: Vincent Noireaux, University of Minnesota
Subject: Motility of Listeria monocytogenes by actin polymerization

Tuesday, October 13th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
Speaker: Jie Zhang, Department of Radiology
Subject: Problems associated with imaging of human subjects with implanted solid state devices.

Tuesday, October 20th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
There will be no seminar this week.

Tuesday, October 27th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
There will be no seminar this week. Post-poned due to illness.

Tuesday, November 3rd 2009
2:30 pm:
Biophysics Seminar in 166 Physics
Speaker: David Odde, University of Minnesota
Subject: Microtubule self-assembly

Tuesday, November 10th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
There will be no seminar this week.

Tuesday, November 17th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
To be announced.

Tuesday, November 24th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
To be announced.

Tuesday, December 1st 2009
2:30 pm:
Biophysics Seminar in 166 Physics
Speaker: Kevin Dorfman: Chemical Engineering and Materials Science
Subject: DNA Electrophoresis in Microfabricated Arrays

I will present our recent results on the dynamics of long DNA as they move through a hexagonal arrays of microfabricated posts under the influence of an electric field. The first part of the talk focuses on the potential of using sparse, ordered post arrays to separate long DNA by molecular weight. In particular, I will focus on the crucial role of electric field gradients on the separation process and how we can use microfabrication tools to control these gradients. In the second part of the talk, I will demonstrate how we are using a combination of Brownian dynamics simulations and videomicroscopy to gain a detailed
understanding of the separation process at the macromolecular level.


Tuesday, December 8th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
There will be no seminar this week.

Tuesday, December 15th 2009
2:30 pm:
Biophysics Seminar in 166 Physics
Speaker: John H .Broadhurst, University of Minnesota
Subject: Local enhancement of therapeutic x ray photon radiation dose by implantstion of high Z materials.

The advent of small electron linear accelerators has mde possible the production of phtons with energies exceeding 20 Mev. This means that alternative energy transfer processs become available for locally profiling the dose delivered to malignant or other unwanted tissue.

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