DRL is the academic home of the Mathematics and Physics and Astronomy departments at Penn. It is named for David Rittenhouse, a noted American astronomer born near Germantown, Philadelphia. Rittenhouse was one of the first to build a telescope in the United States and was Professor of Astronomy at Penn starting in 1779.
Fluid Physics at the Molecular Scale
The image shows flagella driven by dynein molecular motors. The vectors show the position and time-dependent velocity. There is also a graph of the body velocity. Note the desychronization event.
This work comes from Adjunct Professor Jerry Gollub's lab.
Cargo vesicles traveling along microtubles
Cargo vesicles (stained with green fluorescent dye) travelling along microtubules (stained red) in a living cell as studied in Professor Phil Nelson's group.
Carbon Nanotube FET Sensor
Schematic of a carbon nanotube FET sensor functionalized with an antibody to a Lyme disease biomarker protein. The insulating substrate is shown in pink. When antigen molecules bind to the antibody, the electrical characteristics of the FET are altered.
From the lab of Prof. Charlie Johnson.
Professor Alison Sweeney studies bio-optical properties of cephalopods and the cellular and biochemical mechanisms of dynamic camouflage.
Two University of Pennsylvania professors have won the chance to pursue their research full-time for the next academic year. The Simons Foundation has awarded fellowships to Mirjam Cvetic of the Department of Physics and Astronomy and Ron Donagi of the Department of Mathematics, both in the School of Arts and Sciences.
Prof. Randy Kamien has been named a 2013 Simons Investigator by the Simons Foundation. This appointment is in recognition of the promise of his research. The appointment comes with significant yearly research support as well as an annual fund for the department and a fund for indirect costs to the School of Arts and Sciences. This marks the second such award for the department in the first 2 years of the existence of the Simons Investigator awards.
The allure of personalized medicine has made new, more efficient ways of sequencing genes a top research priority. One promising technique involves reading DNA bases using changes in electrical current as they are threaded through a nanoscopic hole.
Now, a team led by University of Pennsylvania physicists has used solid-state nanopores to differentiate single-stranded DNA molecules containing sequences of a single repeating base.