Wednesday, 10 December, 2014 • 5:00–6:30 pm
Rainey Auditorium*, Penn Museum, 3260 South Street
- Nano to Macro: The Music of Kirigami. November 21, 2014 Neighborhood house, Philadelphia, PA
August 22-23, 2014
Glandt Forum, Singh Center
University of Pennsylvania
- MRSEC Workshop on Liquid Crystals and Particles. December 16, 2013
- Kick-off Meeting of NSF EFRI/SEED Project
Oct 8, 2010 (8:40am-6:30pm)
Upper Gallery of Meyerson Hall, 1st Floor, School of Design, PENN
Wearable technology requires materials that are both flexible and functional, so developers often look to polymers or to make harder materials as thin as possible. “So we’re taking inspiration from clothing” to make a new kind of wearable health tracking device that gathers information from its wearer through his or her sweat.
Instead of just wicking sweat away, the team's yarn will be able to chemically analyze its contents and change color accordingly. Read more
Penn engineers design material that could help diagnose concussions. (Septemeber 3, 2015)
The precise link between concussions in sports, especially at the youth level, and traumatic brain injurie by soldiers iis still being explored. Unfortunately, unlike a broken bone or a torn ligament, concussions are invisible and tricky to diagnose. Tthe Penn team in collaboration with Gang Feng’s group at Villanova University and Jie Yin’s group at Temple Universit has developed a polymer-based material that changes colors depending on how hard it is hit. The goal is to someday incorporate this material into protective headgear that could give an early warning sign of a concussion. Youtube.
Penn Researchers Develop Liquid-crystal-based Compound Lenses That Work Like Insect Eyes. The compound eyes found in insects and some sea creatures are marvels of evolution. There, thousands of lenses work together to provide sophisticated information without the need for a sophisticated brain. Now, engineers and physicists at the University of Pennsylvania have shown how the liquid crystals can be employed to create compound lenses similar to those found in nature. Taking advantage of the geometry in which these liquid crystals like to arrange themselves, the researchers are able to grow compound lenses with controllable sizes. Youtube.
Spotlight on Research: The Smart Window. An Elegant Solution for Improving the Energy Efficiency of Buildings. This is the first in a series of interviews to be conducted by the Kleinman Center for Energy Policy.
Penn research team develops ‘smart’ window (March 12, 2015)
Commonplace as they are, windows are an important piece of technology. Beyond architectural aesthetics, a building’s ecological footprint depends heavily on how its internal light and heat are managed. With this in mind, researchers from around the world are trying to make windows “smarter” by tailoring their properties to be more responsive and finely tuned to changing needs.
How Nanoscale Optics Create Nature's Most Dazzling Colors by Maddie Stone at Gizmodo (February 19, 2015)
Understanding butterfly wing color (Jan. 22, 2015). Dan Janzen and Shu Yang discussed their common interests in butterfly wing color.
Shu Yang Named National Academy of Inventors Fellow [ news release ]
A team of University of Pennsylvania researchers is turning kirigami, a related art form that allows the paper to be cut, into a technique that can be applied equally to structures on those vastly divergent length scales.
In a new study, the researchers lay out the rules for folding and cutting a hexagonal lattice into a wide variety of useful three-dimensional shapes. Because these rules ensure the proportions of the hexagons remain intact after the cuts and folds are made, the rules apply to starting materials of any size. This enables materials to be selected based on their relevance to the ultimate application, whether it is in nanotechnology, architecture or aerospace. (see Video)
Giant clams inspire Penn duo’s alternative energy research
Natural selection in an extreme environment has gradually sculpted the giant clam into an exceedingly efficient farmer; it turns the fierce sunlight in its equatorial ocean home into algae, and those single-celled plants into food.
Two Penn researchers are teaming up to unlock the secrets of this living greenhouse and use it as a blueprint for new materials that harvest solar energy or convert it to biofuel. Learn more
(Image courtesy of Alison Sweeney, Penn Physics)
A team of material scientists, chemical engineers and physicists from the University of Pennsylvania has made another advance in their effort to use liquid crystals as a medium for assembling structures.
In their earlier studies, the team produced patterns of “defects,” useful disruptions in the repeating patterns found in liquid crystals, in nanoscale grids and rings. The new study adds a more complex pattern out of an even simpler template: a three-dimensional array in the shape of a flower.
Gizmag interview (Dec. 24, 2013)
NSF news. (Dec. 18. 2013)
Hanging hundreds of feet off the ground to wash a skyscraper's windows or pumping water out to a desert solar array to keep its panels and mirrors clean is more than just a hassle—it's an expensive problem with serious ecological implications.
Researchers at Penn and the spin off company has found a way to solve the problem of keeping surfaces clean, while also keeping them transparent.
Penn researchers integrate origami and engineering (May 30, 2013)
The quintessential piece of origami might be a decorative paper crane, but in the hands of an interdisciplinary Penn research team, it could lead to a drug-delivery device, an emergency shelter, or even a space station.
Led by Randall Kamien, a professor in the Department of Physics and Astronomy, the Penn team will collaborate with researchers at Cornell University on the National Science Foundation’s Emerging Frontiers in Research and Innovation Program called ODISSEI, or Origami Design For The Integration Of Self-assembling Systems For Engineering Innovation.
The project draws inspiration from the Japanese art of paper folding, but the Penn team suggested adding a variant of the technique, known as kirigami, in which the paper can be cut as well as folded. Allowing for cuts and holes in the material makes it easier to fold rigid, three-dimensional structures.
(Image courtesy of Randall Kamien, Penn Physics)
Penn Team Making Waves with Liquid Crystals. (December 20, 2012)
NILT Nano Newsletter. Penn Researchers Use Holographic Lithography To Mimic Color Of Butterfly Wings. (October 19, 2012)
RedOrbit Exclusive Interview: Professor Shu Yang, University of Pennsylvania. (October 18, 2012)
Researchers learn to print butterfly wings. (October 18, 2012)
'Butterfly wing' buildings would never need painting. (October 18, 2012)
Researchers mimic the colour and texture of butterfly wings. (October 17, 2012)
Short Sharp Science: Butterfly-wing wafers to clad iridescent buildings. (October 16, 2012)
Material Could Provide Self-Cleaning, Waterproof Optics.(October 16, 2012)
'Butterfly Wing' Buildings Would Never Need Painting ...(October 16, 2012)
Penn Researchers Create Iridescent, Ultra Water Proof Material. (October 16, 2012)
New way to mimic the color and texture of butterfly. (October 16, 2012)
Penn Faculty Receive Alternative Energy Project Grants (July 16, 2012)
Penn Engineering magazine "Naturally Inspired Materials" (Spring 2011)
Profs collaborate to design futuristic building (The Daily Pennsylvanian, September 16, 2010)
Crytal clue in army injury (BBC news, August 6, 2008)
Color-changing crystal could forecast bomb trauma
(New Scientist, August 7, 2008)
A "Mood Ring" For Brain Trauma (Popsci.com, August 10, 2008)
Two Imaging Elements Create One Multipattern Mask (Photonic Spectra, August 2005)
New Technique to Control Fluids Using Specially Fabricated Silicon 'Nanograss' (Business Wire, March 12, 2004)