Dr Borg's team at Monash University were able to visualise the crystal structure of the Anapn1 protein for the first time, providing valuable insights.
Nanoscale mirrored cavities that trap light around atoms in diamond crystals increase the quantum mechanical interactions between light and electrons in atoms.
Ma's team employed silicon nanomembranes as the active material in the transistor--pieces of ultra-thin films (thinner than a human hair) peeled from the bulk crystal
to pass through two separate"quantum dots"--small crystals that have quantum properties.""If we could detect a superconducting current,
#Crystal structure and magnetism: New insight into the fundamentals of solid state physics A team at HZB has carried out the first detailed study of how magnetic and geometric ordering mutually influence one another in crystalline samples of spinel.
To achieve this, the group synthesized a series of mixed crystals with the chemical formula Ni1-xcuxcr2o4 in
They discovered through neutron scattering experiments at BER II not only how the crystal structure changes, but also uncovered new magnetic phases.
The embedded metal ions in the Ni1-xcuxcr2o4 spinel system cause a distortion of the crystal structure.
The exciting thing about this series of mixed crystals is that nickel or copper atoms sit at
what are referred to as tetragonal sites of the crystal structure. Due to their different configurations of electrons, these tetrahedra become elongated along the crystallographic c-axis for nickel,
The distortion of the crystal structure can thus be controlled, which in turn has an effect on the magnetic ordering.
Manfred Reehuis and Michael Tovar were successful in determining the structural and magnetic properties for each of the mixed crystal specimens over quite a wide temperature range,
This shows that the crystal structure is cubic (three right angles three equal edges) at high temperatures, since the kinetic energy of the atoms still suppresses the Jahn-Teller effect
and thereby prove there is a relationship between the conditions for magnetic ordering and the crystal structures.
especially when they are in a geometrical system like a crystal, rather than in isolation,"says Michael Tovar v
This could lead to making perfect, single-crystal silicon nanostructures. They haven't done it yet,
Discovery of single-crystal silicon--the semiconductor in every integrated circuit--made the electronics revolution possible.
It took cutting single crystals into wafers to truly understand silicon's semiconducting properties. Today, nanotechnology allows incredibly detailed nanoscale etching, down to 10 nanometers on a silicon wafer.
Semiconductors like silicon don't self-assemble into perfectly ordered structures like polymers Do it's almost unheard of to get a 3-D structured single crystal of a semiconductor.
"To study this, the researchers used their technique, ultrafast electron crystallography. The technique, a new development--different from Zewail's Nobel prize-winning work in femtochemistry, the visual study of chemical processes occurring at femtosecond scales--allowed researchers to observe directly the transitioning atomic configuration of a prototypical phase-change
"At the heart of the new technology is a piece of nano-engineered silica glass with ions that fluoresce in infrared light when a low power laser light hits them.
"The team created phosphorene by repeatedly using sticky tape to peel thinner and thinner layers of crystals from the black crystalline form of phosphorus. As well as creating much thinner and lighter semiconductors than silicon,
The microscopic arrestin-GPCR crystals which his team had produced painstakingly over years, proved too difficult to study at even the most advanced type of synchrotron, a more conventional X-ray source.
Measuring just thousandths of a millimeter, the crystals--which had been formed in a toothpaste-like solution--were oozed into the X-ray pulses at LCLS,
Encapsulation by AZO crystals Subsequently, Göbelt used an atomic layer deposition technique to gradually apply a coating of a highly doped wide bandgap semiconductor known as AZO.
This process caused tiny AZO crystals to form on the silver nanowires, enveloped them completely, and finally filled in the interstices.
The LED device was constructed by combining different 2d crystals and emits light from across its whole surface.
we show that they can provide the basis for flexible and semitransparent electronics. he range of functionalities for the demonstrated heterostructures is expected to grow further on increasing the number of available 2d crystals
By constructing tiny irrorsto trap light around impurity atoms in diamond crystals, the team dramatically increased the efficiency with
semiconducting crystals made out of zinc and selenium. The paper glowed at room temperature and could be rolled
and Patrick J. Carroll, director of the University of Pennsylvania X-ray Crystallography Facility, also contributed to the study.
and co-first author Crystal S. Conn, Phd, a postdoctoral fellow in the UCSF Department of Urology,
which interact with each other within the silica fiber optic cables. The researchers note that this approach could be used in systems with far more communication channels.
This could lead to making perfect, single-crystal silicon nanostructures. They haven done it yet,
Discovery of single-crystal silicon the semiconductor in every integrated circuit made the electronics revolution possible.
It took cutting single crystals into wafers to truly understand silicon semiconducting properties. Today, nanotechnology allows incredibly detailed nanoscale etching, down to 10 nanometers on a silicon wafer.
Semiconductors like silicon don self-assemble into perfectly ordered structures like polymers Do it almost unheard of to get a 3-D structured single crystal of a semiconductor.
The researchers found that it was possible to combine the gel with silica nanoparticles microscopic particles previously found to stop bleeding to develop an even more powerful barrier to promote wound healing. his could allow us to immediately stop bleeding with one treatment
#Miniature Technology, Large-scale Impact The postage stamp-sized square of fused silica Kjeld Janssen is holding may not look like a whole lot to the untrained eye,
faster and easier to produce than those made from only a single crystal. Yet single-crystal cells have boasted traditionally better efficiency
partly because they feature far fewer grains fragments akin to microscopic puzzle pieces. The barriers between these grains reduce cell efficiency by trapping
The researchers have developed a method for growing combinations of different materials in a needle-shaped crystal called a nanowire.
The researchers have found out how to grow smaller crystals within the nanowire, forming a structure like a crystal rod with an embedded array of gems.
kinking and crystal structure can be controlled by tuning the self-assembly conditions. As nanowires become better controlled,
These tiny crystals form in the liquid, but later attach to the nanowire and then become embedded as the nanowire is grown further.
This catalyst mediated docking process can elf-optimiseto create highly perfect interfaces for the embedded crystals.
resulted in complex structures consisting of nanowires with embedded nanoscale crystals, or quantum dots, of controlled size and position. he technique allows two different materials to be incorporated into the same nanowire,
even if the lattice structures of the two crystals don perfectly match, said Hofmann. t a flexible platform that can be used for different technologies. ossible applications for this technique range from atomically perfect buried interconnects to single-electron transistors, high-density memories, light emission, semiconductor lasers,
and provides an excellent guide for developing new drugs with fewer side effects. esearchers at the Center for Applied Structural Discovery helped to pioneer a new technique called femtosecond crystallography,
Contributions from ASU researchers included crystallization and biophysical characterization of the rhodopsin-arrestin constructs and crystals, X-ray data collection and evaluation,
#Speedy crystal sponges to clean up waste Close up of the metal organic framework crystals. New sponge-like crystals that clean up contaminants in industrial waste
and soil can now be made rapidly and for 30 per cent of the cost. CSIRO new method, developed in collaboration with The University of Padova (Italy)
and The University of Adelaide, makes the crystals viable to manufacture for the first time by reducing the production time from up to two days down to as few as 15 minutes.
The crystals are made of extremely porous metal organic frameworks (MOFS) and have an internal storage capacity of 7,
This means that the crystals can filter huge volumes of industrial wastewater, trapping large amounts of contaminants including carcinogenic material and heavy metals.
and cost-effective way to grow metal organic frameworksproducing MOF crystals has traditionally been an energy-intensive process due to the heating and cooling required,
and explore turning the crystals into a sustainable industrial waste management product, Dr Falcaro said. CSIRO has used already MOFS to develop a molecular shell to protect
Semiconductors, usually a solid chemical element or compound arranged into crystals, are used widely for computer chips or for light generation in telecommunication systems.
Liu said. e have not been able to grow different semiconductor crystals together in high enough quality,
High quality crystals can be grown even with large mismatch of different lattice constants. Recognizing this unique possibility early on,
see-through overlay called WYSIPS Crystal (the acronym stands for hat you see is photovoltaic surface that sits between the glass
WYSIPS Crystal marketing director Matthieu de Broca says that Sunpartner is working with Kyocera, which makes a number of ruggedized handsets,
to get WYSIPS Crystal into phones next year. But while De Broca says the energy WYSIPS Crystal can produce depends on the kind of light it exposed tontense natural light will work better than diffuse indoor lightingn its current form it can boost battery life by only about 10 to 15 percent. t
will never be able to produce enough to charge the phone from scratch, he says. Much clunkier but perhaps more suited to that job is a wearable charger from Ampy,
The Birth of a New Wonder Material In the last few years, two-dimensional crystals have emerged as some of the most exciting new materials to play with.
One interesting quirk of their physics is that they can behave as a composite of matter and antimatter inside a crystal
when placed around a central silica bead. Each etalis a ocal conic domain a structure that can be used as a simple lens. ur first question was
transmitting an elastic energy cue that causes the crystal focal conic domains to line up in concentric circles around the posts.
#Semiconductor crystals could be key to extending Moore Law IBM researchers have developed a process for growing crystals made from semiconductor materials,
The crystals were grown using a technique called template-assisted selective epitaxy (TASE) using metal organic chemical vapour deposition.
It allowed the team to develop defect-free crystals, and to lithographically define oxide templates and fill them via epitaxy, making nanowires, cross junctions,
The transistor is made of a single molecule of phthalocyanine surrounded by ring of 12 positively charged indium atoms placed on an indium arsenide crystal,
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