A new genre of plastics that mimic the human skin's ability to heal scratches and cuts offers the promise of endowing cell phones, laptops, cars, and other products with self-repairing surfaces, scientists reported. The plastics change color to warn of wounds and heal themselves when exposed to light.
A team of North Carolina State University researchers are one step closer to creating a workable, affordable full-screen Braille computer display that would allow the blind to scan Web pages in much the same way that sighted people do.
Sandia National Laboratories is using its Ion Beam Laboratory to study how to rapidly evaluate the tougher advanced materials needed to build the next generation of nuclear reactors and extend the lives of current reactors.
Searching for the simplest 3-D structure that could take advantage of mechanical instability to collapse reversibly, a group of engineers at Massachusetts Institute of Technology and Harvard University discovered the “buckliball”, acollapsible, spherical toy that resembled the structures they’d been exploring, but with a complex layout of 26 solid moving elements and 48 rotating hinges.
Taking inspiration from the brittlestar, a sea creature that “sees” using crystalline lenses made of calcium carbonate, a team of scientists have discovered that they can grow tiny uniform hemispheric calcium carbonate thin films on a solution. Compatible with biological systems, the microlenses are defect free.
Researchers at the University of Delaware have recently conducted high-performance computer modeling to investigate a new approach for ultrafast DNA sequencing based on tiny holes, called nanopores, drilled into a sheet of graphene. Only recently have scientists figured out a way to build the sheets so that electronics could keep up with the extremely fast DNA base detection rate.
Kyoto University researchers have developed a new method for the boron-doping of 2D carbon materials, which is expected to be a promising approach towards the development of highly efficient electron transporting materials for organic electronics.
Addressing five decades of debate, Stanford University engineers have determine how collective electron oscillations, called plasmons, behave in individual metal particles as small as just a few nanometers in diameter. This knowledge may open up new avenues in nanotechnology ranging from solar catalysis to biomedical therapeutics.
So far, quantum bits have only existed in relatively large vacuum chambers. A research team in Germany, with help from colleagues in Japan and France, has now generated them in a high-quality gallium arsenide crystal.
In the continual quest for better thermoelectric materials—which convert heat into electricity and vice versa—researchers have identified a liquid-like compound whose properties give it the potential to be even more efficient than traditional thermoelectrics.
The prevailing understanding about hydrogen atoms that have lost their electron is that they move along hydrogen bonds to join other molecules. Researchers at University of Southern California and Lawrence Berkeley National Laboratory, however, have discovered a new route by which a proton (a hydrogen atom that lost its electron) can move from one molecule to another.
Researchers at CRANN, a nanoscience institute based in Trinity College Dublin, have discovered a new material could fill a previously missing component in display electronics—a good quality p-type transparent conducting oxide.
Remember Slinky, the coiled metal spring that “walks” down stairs with just a push, momentum and gravity? Researchers at NIST have developed their own version of this classic—albeit 10 million times smaller—as a new technology for manipulating and measuring DNA molecules and other nanoscale materials.
Combining known factors in a new way, theoretical physicists at the University of Massachusetts Amherst have solved an intractable 50-year-old problem: How to simulate strongly interacting quantum systems to allow accurate predictions of their properties.
A research group in Japan have synthesized graphene by reducing graphene oxide using microorganisms extracted from a local river. The method was inspired by a recent report showing that graphene oxide behaves as a terminal electron acceptor for bacteria.
In a recent series of experiments, a Duke University team demonstrated that a metamaterial construct they developed could create holograms—like the images seen on credit or bank cards—in the infrared range of light, something that has not been done before.
A team of international researchers have fired ultra-fast shots of light at oxygen, nitrogen and carbon monoxide molecules as part of a development aimed at mapping the astonishingly quick movements of atoms within molecules, as well as the charges that surround them.
A research group at the University of Tokyo and Sharp Corp have produced a quantum dot-type photovoltaic (PV) battery with a cell conversion efficiency of 18.7% without light condensing and 19.4% with double light condensing. The achievement was made with two technology advances.
Current approaches to organic electronics mainly involve plastic film supports with conducting paths and components made of organic molecules inexpensively printed or glued on. Researchers in Japan have made a new advance, using uncharged organic substances that are luminescent liquids at room temperature and require no solvent.
By depositing atoms on one side of a grid of the “miracle material” graphene, researchers at Stanford have engineered piezoelectricity into a nanoscale material for the first time. And the effect, which could dramatically affect electrical control of graphene materials, can be just as pronounced as in conventional 3D materials.
Just as a chameleon changes its color to blend in with its environment, Duke University engineers have demonstrated for the first time that they can alter the texture of plastics on demand, for example, switching back and forth between a rough surface and a smooth one.
Hydrogen fuel cells, like those found in some "green" vehicles, have a lot of promise as an alternative fuel source, but making them practical on a large scale requires them to be more efficient and cost effective. A research team from the University of Central Florida may have found a way around both hurdles.
A study that examines a new type of silicon-carbon nanocomposite electrode reveals details of how they function and how repeated use could wear them down. The study also provides clues to why this material performs better than silicon alone.
A simple, inexpensive dip-and-dry treatment can convert ordinary silk into a fabric that kills disease causing bacteria in minutes. This killer silk has the potential for use as make-shift curtains and other protective coating to protect homes and other buildings in the event of a terrorist attack with anthrax.
Scientists from the Chinese Academy of Science's Shanghai Institute of Ceramics, in collaboration with scientists from Brookhaven National Laboratory, the University of Michigan, and the California Institute of Technology, have identified a new class of high-performance thermoelectric materials. In their study, liquid-like copper ions carry electric current around a solid selenium crystal lattice.