John Marohn, a professor in the Department of Chemistry and Chemical Biology in the College of Arts and Sciences, has been elected as a fellow of the American Physical Society (APS).

The fellowship program recognizes scientists who have made exceptional contributions in physics and chemical physics research; important applications of physics, leadership in or service to physics; or significant contributions to physics education.

APS cited Marohn’s “pioneering work to establish the fundamental physical limits of force detection in measurements of magnetic resonance via a spin-force gradient at attonewton sensitivity” on its citation for the award.

Marohn is being recognized for experiments using tiny force sensors to push magnetic resonance imaging (MRI) toward single-molecule sensitivity. Marohn’s team was the the first to demonstrate scanned-probe nuclear magnetic resonance, enabling nuclear MRI of polymer films only tens of nanometers thick. 

Read the full story on The College of Arts & Sciences website.