PHILADELPHIA – Dr. Louis Schoenleber, Jr. (C’42, D’43), an alumnus of the University of Pennsylvania School of Dental Medicine, World War II Navy Commander and oral surgeon, has left the majority of proceeds from his multi-million-dollar estate to Penn Dental Medicine’s Department of Oral and Maxillofacial Surgery. The bequest, totaling $17.3 million, is the largest gift in the School’s history and one of the largest gifts ever to a U.S. dental school.
Nanotechnologists at Penn and Columbia Reveal the Frictional Characteristics of Atomically Thin Sheets
PHILADELPHIA –- A team of nanotechnology researchers from the University of Pennsylvania and Columbia University has used friction force microscopy to determine the nanoscale frictional characteristics of four atomically-thin materials, discovering a universal characteristic for these very different materials. Friction across these thin sheets increases as the number of atomic layers decreases, all the way down to one layer of atoms. This friction increase was surprising as there previously was no theory to predict this behavior.