Christopher M. Stafford is a research staff scientist and project leader in the Materials Science and Engineering Division at the National Institute of Standards and Technology. In 2010, he initiated a research program focused on measuring the structure, dyanmics and transport of polymer membranes, with applications in water purification, fuel cells and batteries. In 2021, he helped establish a NIST-wide program in advanced measurements of technologies used in direct air capture of CO2. His research in this area centers around measuring CO2 adsorption/desorption in poly(ethyleneimine)-based sorbents and coatings.