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News articles about "Structure"

Making it big: Metamaterial applications a step closer to reality

Metamaterials are engineered to interact with light and sound waves in ways that natural materials cannot They thus have the potential to be used in exciting new applications such as invisibility cloaks high resolution lenses ... - Read More

Catalytic upgrade: Better and cheaper renewable biofuels

New catalysts to remove oxygenated compounds from bio derived oils may lead to better and cheaper renewable biofuels Dwindling crude oil reserves accompanied by rising prices and environmental concerns have led to increased interest in ... - Read More

Exploring the magnetism of a single atom

Magnetic devices like hard drives magnetic random access memories MRAMs molecular magnets and quantum computers depend on the manipulation of magnetic properties In an atom magnetism arises from the spin and orbital momentum of its ... - Read More

Smaller microchips that keep their cool

Temperatures often over 200 degrees C occur in geothermal and oil production conventional microelectronics hit their limits there Researchers have now fabricated compact microchips that can keep their cool even at 300 degrees C An ... - Read More

Surgeons 'light up' GI tract to safely remove gall bladder

A green fluorescent dye is helping surgeons at the University of Illinois Hospital & amp Health Sciences System perform robotic gall bladder surgery more safely UI Health surgeons used near infrared light to make the ... - Read More

Graphene for real-world devices: New research in phonon scattering sheds more light on graphene as a replacement for silicon

Graphene a one atom thick form of the carbon material graphite has been hailed as a wonder material strong light nearly transparent and an excellent conductor of electricity and heat But a number of practical ... - Read More

New mathematical framework to characterize shape of graphene

Scientists studying graphene's properties are using a new mathematical framework to make extremely accurate characterizations of the two dimensional material's shape Graphene discovered in 2004 is a one atom thick sheet of graphite The properties ... - Read More

Nanoengineers develop basis for electronics that stretch at the molecular level

Nanoengineers at the University of California San Diego are asking what might be possible if semiconductor materials were flexible and stretchable without sacrificing electronic function Today's flexible electronics are already enabling a new generation of ... - Read More

Bone marrow-on-a-chip unveiled

The latest organ on a chip from Harvard's Wyss Institute for Biologically Inspired Engineering reproduces the structure functions and cellular make up of bone marrow a complex tissue that until now could only be studied ... - Read More

Clues for superconductivity in an iron-based material

For the first time scientists have a clearer understanding of how to control the appearance of a superconducting phase in a material adding crucial fundamental knowledge and perhaps setting the stage for advances in the ... - Read More

Environmental hormones: Tiny amounts, big effects on fish

Empty nets and few species environmental hormones are believed responsible for the diminishing numbers of fish How damaging are these substances really though Studies that depict a complete picture of the lives of fish provide ... - Read More

Evolution in species may reverse predator-prey population cycles

Populations of predators and their prey usually follow predictable cycles When the number of prey increases perhaps as their food supply becomes more abundant predator populations also grow When the predator population becomes too large ... - Read More

Taking the lead out of a promising solar cell: Environmentally friendly solar cell pushes forward the 'next big thing in photovoltaics'

Northwestern University researchers are the first to develop a new solar cell with good efficiency that uses tin instead of lead perovskite as the harvester of light The low cost environmentally friendly solar cell can ... - Read More

New atom-scale knowledge on the function of biological photosensors

The research groups of Janne Ihalainen University of Jyväskylä and Sebastian Westenhoff University of Gothenburg have clarified how the atom structure of bacterial red light photosensors changes when sensing light The research reveals structural changes ... - Read More

Playing pool with carbon atoms: How to change the crystal structure of graphene

A University of Arizona led team of physicists has discovered how to change the crystal structure of graphene more commonly known as pencil 'lead' with an electric field an important step toward the possible use ... - Read More

Breaking up water: Controlling molecular vibrations to produce hydrogen

Natural gas methane can be converted into hydrogen H2 which is used in clean energy synthetic fertilizers and many other chemicals The reaction requires water and a nickel catalyst Methane and water molecules attach on ... - Read More

Nanoelectronics: Edgy look at 2-D molybdenum disulfide

The drive to develop ultrasmall and ultrafast electronic devices using a single atomic layer of semiconductors such as transition metal dichalcogenides has received a significant boost Researchers with the U S Department of Energy DOE ... - Read More

Next green revolution? Converting bacteria from free living to nitrogen-fixing

If you pull up a soybean or bean plant and shake off the dirt you might see odd swellings or bumps like rheumatic finger joints on its roots Inside the cool soil covered bumps are ... - Read More

Solving a mystery of thermoelectrics: Analysis of phase-change materials

Materials that can be used for thermoelectric devices those that turn a temperature difference into an electric voltage have been known for decades But until now there has been no good explanation for why just ... - Read More

Next gen cell phones, computers? Harnessing magnetic vortices for making nanoscale antennas

Scientists at the U S Department of Energy's Brookhaven National Laboratory are seeking ways to synchronize the magnetic spins in nanoscale devices to build tiny yet more powerful signal generating or receiving antennas and other ... - Read More
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