The image depicts a nanobiosensor consisting of a carbon nanotube (gray) covalently attached to the coxsackie-adenovirus receptor (magenta). This device detects the adenovirus, one of the viruses responsible for the common cold, when Knob proteins from the virus capsid (orange) bind to the receptor (magenta). These devices were synthesized in Prof. Charlie Johnson's group.
Jamming and the Glass Transition
Professor Andrea Liu's group studies the theory of jamming - the phenomenon wherein a system that normally flows much like a liquid (as with foams) become solid-like when subjected to shear stress.
Sudbury Neutrino Observatory
The Sudbury Neutrino Observatory (SNO) is a second generation dedicated solar neutrino experiment which has extended the results of the Penn group with the Kamiokande II detector by measuring three reactions of solar neutrinos to fully resolve the solar neutrino problem.
Majorana Fermions, Topological Insulators and Superconductors
Magnetic diffraction pattern for a Josephson junction with a topological insulator weak link. Building on a theoretical description published in 2008 by Prof. Charles Kane and Liang Fu at Penn, Stanford researchers believe the unusual behavior is explained in terms of Majorana fermions.
Master of Medical Physics
The Department of Physics and Astronomy in the School of Arts and Sciences, in conjunction with the Departments of Radiology and Radiation Oncology in the School of Medicine, offers the Master of Medical Physics degree. The program is intended for technically prepared college graduates who seek to combine their interests in graduate physics with growing career opportunities in the field of medicine.
Improving crop yields in marginal, sandy soils is critical to feeding
the world’s growing population. But when water is added to dry
soils—either from rainfall or irrigation sources—it tends to flow in
channels, as opposed to spreading out evenly, an effect that prevents
water from reaching all plant roots.
The David and Lucile Packard Foundation announced Wednesday that Alison
Sweeney, an assistant professor of physics and astronomy at the
University of Pennsylvania, will receive a 2014 Packard Fellowship for
Science and Engineering.
A Message from Penn President Amy Gutman on Packard Fellowship Win
Evolution in extreme environments has produced life forms with amazing abilities and traits. Beneath the waves, many creatures sport iridescent structures that rival what materials scientists can make in the laboratory.