Original broadcast date: March 8, 2009

How do you know that the disinfectant that claims to kill over 99 per cent of bacteria actually does just that? What are the mechanisms of action that result in this effect? Today, we are going to learn about biofilms, what they are, what they do, how we are exposed to them daily, and why we should understand what differentiates the harmful from harmless.

• Dr. Darla Geores, Research engineer with the Center for Biofilm Engineering and Assistant Research Professor, Chemical & Biological Engineering at Montana State University