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Anthony E. Butterfield, also known as Tony Butterfield, is a chemical engineer whose work combines mathematical modeling, experimental measurement and education. His historical University of Utah biography describes a master's project on finite element simulation of cell cycle kinetics and doctoral work on model-based filtering and control of individual molecular motors.^[ref]

These topics illustrate how chemical engineering can connect a small physical system with an inferred mathematical description: measurements are interpreted through a mathematical model, and a controller uses that description to influence the system. His outreach material also connects chemistry with measurements students can reason about; Carbon Captured Chalk by Tony Butterfield is one such educational contribution. The research and teaching examples concern the same general skill of relating a model to observable behaviour.

By Anthony E. Butterfield, credited as Tony Butterfield.

Online text: www.che.utah.edu/teaching_module/carbon-captured-chalk/

Teaching module hosted by the University of Utah Department of Chemical Engineering and developed through the NSF Research Coordination Network on CCUS. The byline credits Alissa Park with the precursor module, rather than coauthorship of this adaptation. No publication date is stated.^[ref]

Cited passages: Summary; Materials and Methods, apparatus and steps 1–13; Optional Activities and Extensions, microscope slide; Background for Teachers.