Deryl Troyer, professor of anatomy and physiology, is leading a project with Stefan Bossmann, professor of chemistry, that uses nanotechnology to positively identify mastitis in dairy cattle earlier and costs less than current technologies on the market. Mastitis is a disease that inflames and eventually scars the udder tissue of dairy cows, reducing milk production and altering milk composition. It is the most common disease in U.S. dairy cattle and costs the U.S. dairy industry more than $2 billion annually in losses.