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News articles about "Laser"

Understanding the functioning of a new type of solar cell

Photovoltaic energy conversion offers one of the best means for the future of renewable energy in the world The efficiency of solar cells depends heavily upon the light absorbing materials they use Photovoltaic systems based ... - Read More

Physicists quantify temperature changes in metal nanowires

Using the interaction between light and charge fluctuations in metal nanostuctures called plasmons physicist have demonstrated the capability of measuring temperature changes in very small 3 D regions of space Plasmons can be thought of ... - Read More

Researchers 'detune' a molecule: Scientists control the bonds between atoms in a buckyball

Molecule, molecule
Rice University scientists have found they can control the bonds between atoms in a molecule The molecule in question is carbon 60 also known as the buckminsterfullerene and the buckyball discovered at Rice in 1985. ... - Read More

Microscopic fountain pen adds new functionality to AFM microscopy

Microscopy
The Atomic Force Microscope AFM which uses a fine tipped probe to scan surfaces at the atomic scale will soon be augmented with a chemical sensor This involves the use of a hollow AFM cantilever ... - Read More

Viewing macro behaviors of ultra-cold quantum gases through the micro-world

Understanding collective behavior of ultra cold quantum gases is of great interest since it is intimately related to many encountered systems in nature such as human behavior swarms of birds traffic jam sand dunes neutron ... - Read More

Understanding secondary light emission by plasmonic nanostructures may improve medical imaging

Light emission, Nanostructures, Medical
Plasmonic nanostructures are of great current interest as chemical sensors in vivo imaging agents and for photothermal therapeutics explained David G Cahill a Willett Professor and head of the Department of Materials Science and Engineering ... - Read More

Establishing guides for molecular counting using fluorescent proteins

To know how many proteins assemble together at the nanoscale is fundamental for understanding protein function Sometimes proteins must be in an oligomeric state to be functional although oligomerization of certain proteins can also lead ... - Read More

New way to map important drug targets: Faster, more accurate imaging of hard-to-study membrane proteins

Membrane, Membrane
Researchers have used new techniques and one of the brightest X ray sources on the planet to map the 3 D structure of an important cellular gatekeeper in a more natural state than possible before ... - Read More

Ways of the photoelectric effect; How physicists have learned how to select them

In contrast to its apparent simplicity that brought Einstein his Nobel Prize the photoelectric effect when an electron is knocked out from its parent atom by a photon is quite complicated to analyze in general ... - Read More

New way to map important drug targets

Drug, Drug, Drug, Drug, Drug, Drug
Researchers have used new techniques and one of the brightest X ray sources on the planet to map the 3 D structure of an important cellular gatekeeper in a more natural state than possible before ... - Read More

Scientists decode serotonin receptor at room temperature

Serotonin
An international research team has decoded the molecular structure of the medically important serotonin receptor at room temperature for the first time This study reveals the dynamics of the receptor at close to its operating ... - Read More

Infrared sheds light on single protein complexes

Proteins are basic building blocks of life The chemistry and structure of proteins are essential for their biological function Indeed the structure of proteins determines their mechanical and catalytic properties e g enzymes Such functions ... - Read More

Researchers develop advanced 3D 'force microscope'

Membrane proteins are the gatekeepers that allow information and molecules to pass into and out of a cell Until recently the microscopic study of these complex proteins has been restricted due to limitations of force ... - Read More

Alzheimer substance may be the nanomaterial of tomorrow

Substance
Amyloid protein causes diseases like Alzheimer's Parkinson's and Creutzfeldt Jakob disease But amyloid also carries unique characteristics that may lead to the development of new composite materials for the nano processors and data storage of ... - Read More

Ultrafast heating of water: This pot boils faster than you can watch it

Water, Water, Water
Scientists from the Hamburg Center for Free Electron Laser Science have devised a novel way to boil water in less than a trillionth of a second The theoretical concept which has not yet been demonstrated ... - Read More

Golden trap: Highly sensitive system to detect individual molecules

System, molecules
Medical diagnostics is searching for substances capable of documenting early on whether a serious disease is developing or what its course will be In many cases the treacherous molecules are present only in trace amounts ... - Read More

Researchers split water into hydrogen, oxygen using light, nanoparticles

Oxygen
Researchers from the University of Houston have found a catalyst that can quickly generate hydrogen from water using sunlight potentially creating a clean and renewable source of energy Their research published online Sunday in Nature ... - Read More

Smashing science: Scientists discover how explosives respond to shockwaves

Science, Science
Lawrence Livermore National Laboratory researchers have combined ultrafast time resolved experimental measurements with theory to reveal how an explosive responds to a high impact shock The work involved advances in both ultrafast experimental shock wave ... - Read More

Precise docking sites for cells

The Petri dish is a classical biological laboratory device but it is no ideal living environment for many types of cells Studies lose validity as cell behavior on a flat plastic surface differs from that ... - Read More

Scientists scale terahertz peaks in nanotubes

Carbon, carbon
Carbon nanotubes carry plasmonic signals in the terahertz range of the electromagnetic spectrum but only if they're metallic by nature or doped In new research the Rice University laboratory of physicist Junichiro Kono disproved previous ... - Read More
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