The Best View in Philadelphia

The University of Pennsylvania recently finished their newest addition to the campus, Penn Park, which adds a brilliant contrast to the Philadelphia skyline and gives multiple sports teams a new place to practice and engage in athletics.

Bioluminescence

Professor Alison Sweeney studies bio-optical properties of cephalopods and the cellular and biochemical mechanisms of dynamic camouflage.

 

PAPER Experiment

The Precision Array for Probing the Epoch of Reionization is a radio interferometer designed to detect 21 cm Hydrogen (HI) fluctuations occuring when the first galaxies ionized intergalactic gas at around 500 million years after the Big Bang.  The Penn PAPER team is led by Professor James Aguirre.

 

Proteins on Carbon Nanotubes

The image shows an example of peptides that assemble into a tubular structure surrouding single-walled carbon nanotubes.  The geometrically defined, virus-like coating created by these peptides converts the smooth surfaces of carbon nanotubes into highly textured assemblies with long-scale order, capable of directing the assembly of gold nanoparticles into helical arrays along the nanotube axis.

 

Self-assembling Building Blocks

Self-assembling building blocks occur in a diverse set of supramolecular, macromolecular, and other complex systems that impact numerous fields such as industrial dyes and pigments, xerographic receptors, organic semiconductors, transistors, light-emitting diodes and solar cells.  Prof. Paul Heiney collaborates with chemists and material scientists on the study of such molecular systems.

 

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