Dr. Shana Kelley is the President of the Chan Zuckerberg Biohub Chicago and the Neena B. Schwartz Professor of Chemistry and Biomedical Engineering at Northwestern University. The Kelley research group works in a variety of areas spanning bio analytical technology development and has pioneered new methods for tracking molecular and cellular analytes with unprecedented sensitivity. She talks about developing DNA-based reagentless biosensors and commercializing new technologies.