Dr. Horia I. Petrache, Assistant Professor, Department of Physics, Indiana University-Purdue University Indianapolis, spoke at the Physics Colloquium on January 24, 2008. The topic of his presentation was, "X-ray Measurements of Electrostatic Interactions in Biomembranes."

Mahfuza Khatun speaks with Horia Petrache before the colloquium.

Petrache prepares for the start of the colloquium.

Petrache begins his presentation.


