Purdue creates new low-cost system to detect bacteria

Arun Bhunia (standing) and Padmapriya Banada use a laser and a computer monitor to observe scatter patterns in a petri dish in their Purdue University lab. The technique may provide cost-cutting applications for medicine, food processing and homeland security. Bhunia is a professor of food microbiology, and Banada is a postdoctoral researcher. Credit: Purdue University photo/Tom Campbell