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News articles about "Density"

The latest fashion: Graphene edges can be tailor-made

Theoretical physicists at Rice University are living on the edge as they study the astounding properties of graphene In a new study they figure out how researchers can fracture graphene nanoribbons to get the edges ... - Read More

New research re-creates planet formation, super-Earths and giant planets in the laboratory

New laser driven compression experiments reproduce the conditions deep inside exotic super Earths and giant planet cores and the conditions during the violent birth of Earth like planets documenting the material properties that determined planet ... - Read More

Graphene enables all-electrical control of energy flow from light emitters

At the heart of lasers displays and other light emitting devices lies the emission of photons Electrically controlled modulation of this emission is of great importance in applications such as optical communication sensors and displays ... - Read More

Self-destructive effects of magnetically-doped ferromagnetic topological insulators

The discovery of topologically protected electrical conductivity on the surface of some materials whose bulk interior acts as an insulator was among the most sensational advances in the last decade of condensed matter physics with ... - Read More

Carbon nanotube finding could lead to flexible electronics with longer battery life

University of Wisconsin Madison materials engineers have made a significant leap toward creating higher performance electronics with improved battery life and the ability to flex and stretch Led by materials science Associate Professor Michael Arnold ... - Read More

Harnessing bacteria to move microscopic gears and ratchets

Computer simulations at OIST suggest new applications in industry by harnessing active microscopic particles in fluids Previous research has already demonstrated that substantial quantities of self motile or active agents such as bacteria in a ... - Read More

Laser-induced graphene 'super' for electronics: Flexible, 3-D supercapacitors tested

Rice University scientists advanced their recent development of laser induced graphene LIG by producing and testing stacked three dimensional supercapacitors energy storage devices that are important for portable flexible electronics The Rice lab of chemist ... - Read More

Glass for battery electrodes

For some time now energy experts have been adamant that we will need much more clean energy in the future if we are to replace fossil fuel sources and reduce CO2 emissions For example electric ... - Read More

Water, Water, Everywhere -- Controlling the Properties of Nanomaterials

Wendy Hames and Katie Bethea Published Work H W Wang M DelloStritto N Kumar A I Kolesnikov P R C Kent J D Kubicki D J Wesolowski and J O Sofo “Vibrational density of states ... - Read More

Making synthetic materials more impervious: fewer plastic substances in food

Synthetic materials are convenient in many respects but they have one disadvantage they are permeable to gases In order to make plastic more impervious Ruhr Universität engineers apply wafer thin layers on surfaces This would ... - Read More

'Seeing' hydrogen atoms to unveil enzyme catalysis that may play key role in cancer drug development

Enzymes are catalysts that speed up chemical reactions in living organisms and control many cellular biological processes by converting a molecule or substrate into a product used by the cell For scientists understanding details of ... - Read More

"Seeing" Hydrogen Atoms to Unveil Enzyme Catalysis

how small its samples can be how large the crystal unit cells we can resolve ” said Kovalevsky “But this result shows the instrument is performing to its specifications which is exciting ” For future ... - Read More

Possible avenue to better electrolyte for lithium ion batteries

The lithium ion batteries that mobilize our electronic devices need to be improved if they are to power electric vehicles or store electrical energy for the grid Berkeley Lab researchers looking for a better understanding ... - Read More

Graphene 'cut and paste' with microwaves

Scientists in Russian Academy of Sciences Moscow have revealed a variety of transformations taking place on carbon surface under the influence of metal nanoparticles and microwaves Graphene cut and paste with metal nanoparticles was carried ... - Read More

Future batteries: Lithium-sulfur with a graphene wrapper

What do you get when you wrap a thin sheet of the wonder material graphene around a novel multifunctional sulfur electrode that combines an energy storage unit and electron ion transfer networks An extremely promising ... - Read More

Defects are perfect in laser-induced graphene

Researchers at Rice University have created flexible patterned sheets of multilayer graphene from a cheap polymer by burning it with a computer controlled laser The process works in air at room temperature and eliminates the ... - Read More

New technique could harvest more of the sun's energy

As solar panels become less expensive and capable of generating more power solar energy is becoming a more commercially viable alternative source of electricity However the photovoltaic cells now used to turn sunlight into electricity ... - Read More

World record for compact particle accelerator: Researchers ramp up energy of laser-plasma 'tabletop' accelerator

Using one of the most powerful lasers in the world researchers have accelerated subatomic particles to the highest energies ever recorded from a compact accelerator The team from the U S Department of Energy's Lawrence ... - Read More

Upsetting the stability of super-small gold clusters generates multifaceted nanocrystals with potent catalytic properties

A*STAR researchers have devised a way to destabilize gold nanoclusters so that they form tiny atomic nuclei that then grow together into perfectly proportioned 12 sided dodecahedron crystals These unique polyhedra have energy rich surfaces ... - Read More

Low-grade waste heat regenerates ammonia battery

An efficient method to harvest low grade waste heat as electricity may be possible using reversible ammonia batteries according to Penn State engineers The use of waste heat for power production would allow additional electricity ... - Read More
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