David R. Walt is University Professor at Tufts University and is a Howard Hughes Medical Institute Professor. He has received numerous awards for his fundamental and applied work in the field of optical microwell arrays and single molecules. He is a member of the National Academy of Engineering, a Fellow of the American Academy of Arts and Sciences, and a Fellow of the National Academy of Inventors. He is co-chair of the National Academy of Sciences Board on Chemical Sciences and Technology. Dr. Walt is the Scientific Founder and a Director of both Illumina Inc. and Quanterix Corp.