Some treatments for diseases involve working on parts of the human body that are smaller than a tenth of the width of a piece of human hair. Tejal Desai, a bioengineering professor, works with these small parts using nanotechnology. She became interested in bioengineering as a freshman in high school because "engineering could have direct health applications and help people," and now she is developing a tiny capsule that contains pancreatic cells that produce insulin as a potential treatment for diabetes.

This video is available in both English and Spanish audio, along with corresponding closed captions.