Red-letter day by Alyssa Stone February 22, 2022 Share Facebook LinkedIn Twitter Northeastern Assistant Professor of Bioengineering Elizabeth Libby works in her lab in the Interdisciplinary Science and Engineering Complex. Photo by Alyssa Stone/Northeastern University Elizabeth Libby, assistant professor of bioengineering at Northeastern, works in her lab in the Interdisciplinary Science and Engineering Complex. Photo by Alyssa Stone/Northeastern University