• Penn Researchers Show New Way of Assembling Particles Into Complex Structures

    Penn Researchers Show New Way of Assembling Particles Into Complex Structures

    Many recent advances in microtechnology and nanotechnology depend on microscopic spherical particles self-assembling into large-scale aggregates to form a relatively limited range of crystalline structures.

  • Printing 3D Blood Vessel Networks out of Sugar

    Printing 3D Blood Vessel Networks out of Sugar

    Bioengineers have been steadily advancing toward the goal of building lab-grown organs out of a patient’s own cells, but a few major challenges remain.

  • T Cells Hunt Like Sharks in Human Body

    T Cells Hunt Like Sharks in Human Body

    A cross-disciplinary research team at Penn has arrived at a surprising finding: T cells, which comprise a key part of the immune system, track down parasites using a movement strategy similar to those used by predators such as sharks, monkeys, and blue-fin tuna to hunt prey.

  • Seeking Compromise

    Seeking Compromise

    Gridlock in Washington is not a new occurrence. But the degree to which it has frozen Congress is significant. Moderate members of Congress, including Republican Senator Olympia Snowe, are retiring because politicians have become hard-line partisans, making governing difficult.

  • A Day in the Life of Penn, Spring 2012

    A Day in the Life of Penn, Spring 2012

    Crew teams at dawn. A midday rush to food trucks along Spruce Street. An evening performance in an on-campus theater. These are just a handful of the moments, big and small, captured in the first-ever University-wide photo project, “A Day in the Life of Penn.”