Mussels can be a mouthwatering meal, but the chemistry that lets mussels stick to underwater surfaces may also provide a highly adhesive wound closure and more effective healing from surgery. Researchers have incorporated the chemical structure from the mussel's adhesive protein into the design of an injectable synthetic polymer. The bioadhesives adhere well in wet environments, have controlled degradability, and improved biocompatibility.
A massive telescope buried in the Antarctic ice has detected 28 extremely high-energy...
Metamaterials are manufactured materials that derive their unusual properties from...
A current optical-sensing technology can launch and guide a single light wave, called a surface-...
For the first time, an elusive step in the process of human DNA replication has been demystified by scientists at Penn State University. According to senior author Stephen J. Benkovic, the scientists "discovered how a key step in human DNA replication is performed."
A pair of newly discovered stars is the third-closest star system to the Sun, according to a recent paper published by a Penn State University astrophysicist. At 6.5 light years, the duo is the closest star system discovered since 1916, and is expected to attract considerable attention from planet hunters.
For the first time, scientists have created single layers of a naturally occurring rare mineral called tungstenite. The resulting sheet of stacked sulfur and tungsten atoms forms a honeycomb pattern of triangles that have been shown to have unusual light-emitting, or photoluminescent, properties.
Researchers searching the galaxy for planets that could pass the litmus test of sustaining water-based life must find whether those planets fall in what’s known as a habitable zone. New work, led by a team of Penn State University researchers, will help scientists in that search.
Norfolk Southern Railway No. 999 is the first all-electric, battery-powered locomotive in the United States. But when one of the thousand lead-acid batteries that power it dies, the locomotive shuts down. To combat this problem, a team of Penn State University researchers is developing more cost-effective ways to prolong battery life.
A series of rapid environmental changes in East Africa roughly 2 million years ago may be responsible for driving human evolution, according to researchers at Penn State University and Rutgers University.
The spread of cancer cells may be slowed by targeting the protein km23-1, according to researchers at Penn State University College of Medicine. A motor protein that transports cargo within the cell, km23-1 is also involved in the movement or migration of cells. Migration is necessary for cancer to spread, so understanding this cell movement is important for development of better cancer treatments.
Building a tunnel made up of both hard and soft materials to guide the reconnection of severed nerve endings may be the first step toward helping patients who have suffered extensive nerve trauma regain feeling and movement, according to a team of biomedical engineers.
For the first time, a silicon-based optical fiber with solar cell capabilities has been developed that has been shown to be scalable to many meters in length. The research opens the door to the possibility of weaving together solar cell silicon wires to create flexible, curved, or twisted solar fabrics.
A new paradigm for understanding the earliest eras in the history of the universe has been developed by scientists at Penn State University. Using techniques from an area of modern physics called loop quantum cosmology, developed at Penn State, the scientists now have extended analyses that include quantum physics farther back in time than ever before.
Using a combination metamaterials and transformation optics, engineers at Penn State University have developed designs for miniaturized optical devices that can be used in chip-based optical integrated circuits, the equivalent of the integrated electronic circuits that make possible computers and cell phones. Controlling light on a microchip could, in the short term, improve optical communications and allow sensing of any substance that interacts with electromagnetic waves.
Researchers at Penn State University have developed a chemical model that mimics a possible step in the formation of cellular life on Earth 4 billion years ago. Using large "macromolecules" called polymers, the scientists created primitive cell-like structures that they infused with RNA and demonstrated how the molecules would react chemically under conditions that might have been present on the early Earth.
According to a team of Penn State University researchers, a technique that uses acoustic waves to sort cells on a chip may create miniature medical analytic devices that could make Star Trek's tricorder seem a bit bulky in comparison. The device uses two beams of acoustic—or sound—waves to act as acoustic tweezers and sort a continuous flow of cells on a dime-sized chip.
For nearly 260 years, researchers have classified species based on visual attributes like color, shape and size. But some species, such as Symbiodinum , a group of single-celled algae that live inside corals and are critical to their survival, could not have been found using the system that Carl Linnaeus pioneered. Instead, DNA analysis is providing the clue, and many new species are being found as a result.
A team of researchers have used surface photochemical reactions to probe the critical role of substrate morphology on self-assembly and ligand environment, determining that molecules on curved surfaces have a greater range of orientations and, as a result, react more slowly than do molecules on flat surfaces.
Recent studies of small, repeating, and very frequent earthquakes in an Antarctic ice sheet may not only lead to a better understanding of glacial movement, according to Penn State University geoscientists, but may also shed light on stick slip earthquakes like those on the San Andreas fault or in Haiti.
Penn State University will be part of a new public-private partnership aimed at revitalizing American manufacturing and encouraging companies to invest in the United States. The new partnership, the National Additive Manufacturing Innovation Institute (NAMII), is a consortium of research universities, community colleges, and nonprofit organizations from Ohio, Pennsylvania, and West Virginia, and manufacturing firms nationwide.
Most methane comes from natural gas, a fossil fuel. Stanford University and Penn State University scientists are taking a greener approach using microbes that can convert renewable electricity into carbon-neutral methane.
A team of bioengineers and biochemists from Penn State University has demonstrated a device about the size of a dime that is capable of manipulating objects, including living materials such as blood cells and entire small organisms, using sound waves. The device, called acoustic tweezers, is the first technology capable of touchlessly trapping and manipulating Caenorhabditis elegans .
America's research universities are essential for U.S. prosperity and security, but in danger of serious decline unless the federal government, states, and industry take action to ensure adequate, stable funding in the next decade, according to a report issued by the National Research Council.
CT scans of fossilized primate skulls or skull fragments from both the Old and New Worlds may shed light on how these extinct animals moved, especially for those species without any known remains, according to an international team of researchers.
Inexpensive, portable devices that can rapidly screen cells for leukemia or HIV may soon be possible thanks to a chip that can produce 3D focusing of a stream of cells, according to Pennsylvania State University researchers.
While many are focusing on atmospheric solutions to reduce greenhouse gases, some researchers are setting their sights on the ground—deep underground. Li Li, an assistant professor of energy and mineral engineering at Penn State University, is investigating geologic carbon sequestration as a way to reduce the amount of carbon dioxide in the atmosphere.
Technology is helping communication companies merge telephone, television, and Internet services, but a push to deregulate may leave some customers on the wrong side of the digital divide during this convergence, according to a Penn State University telecommunications researcher.
A process that spins starch into fine strands could take the sting out of removing bandages, as well as produce less expensive and more environmentally friendly toilet paper, napkins, and other products, according to Penn State University food scientists.