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,
and then convert the materials into the right alloy contents to emit the blue color.
Ribo-T may be able to be tuned to produce unique and functional polymers for exploring ribosome functions
or producing designer therapeutics and perhaps one day even non-biological polymers. No one has developed ever something of this nature. e felt like there was a small very small chance Ribo-T could work
the mesh is composed of nanoscale metal wires and polymers. Tiny electronic devices, such as sensors and electrode stimulators, can be built into it.
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.
Consequently, materials scientists have been falling over themselves to discover the extraordinary properties of graphene, boron nitride, molybdenum disulphide, and so on.
and even to reinforce composite materials to make them stronger. In bulk form, black phosphorus is made of many layers, like graphite.
For example, they added the nanosheets to a film of polyvinyl chloride, thereby doubling its strength and increasing its tensile toughness sixfold.
The researchers have been studying bio-based polymers for more than a decade. While they showed some promise,
One interesting quirk of their physics is that they can behave as a composite of matter and antimatter inside a crystal
Heavy metals like mercury, lead and arsenic are released into the oceans through manufacturing and industrial processes.
(which has previously proved useful in cleaning up heavy metals) curled up into a coral-like formation.
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,
including alloys of indium, gallium and arsenide. III-V semiconductors are believed to be a potential future material for computer chips
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,
They do this using dedicated pigment-containing cells in their skin called chromophores, which they can expands
The skin the team has developed is made from a soft electroactive dielectric elastomer, coated with black carbon grease.
Applying a current makes this elastomer expand and contract. Arranging these artificial chromatophores in a linear array, the team devised mathematical algorithms to control how the cells react to changes in state of neighbouring cells,
rubbery polymer with carbon grease electrodes, expand and contract in response to elextric current In a paper in the Journal of the Royal Society Interface,
which consist of hollow metal spheres of one metal dispersed in a matrix which can be of the same or a different metal,
for military transport applications. They are mechanically strong, thermally insulative and lightweight, with their structure reducing the density compared with a bulk material,
Her research involved comparing foamsshielding properties against pure lead and the A356 grade of aluminium, metals that are used currently for shielding purposes.
A sample of high-Z steel-steel foam The best results were obtained from a foam called high-Z steel-steel,
which consists of stainless steel spheres dispersed in a matrix of high-speed T15 steel, an alloy containing trace amounts of vanadium and tungsten.
The term High-Z refers to all the metals in the alloy having a large number of protons in their atomic nuclei;
Rabiei team chose this alloy because tungsten and vanadium both have good radiation shielding properties.
The tungsten-containing foam was modified so that its density was the same as a foam made entirely from stainless steel.
The researchers found that the high-Z foam was as good as the bulk materials at blocking high-energy gamma rays,
The size of the hollow steel spheres seemed to have little effect, as long as the ratio of wall thickness to diameter stayed constant;
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,
When billions of these spores were glued together on several plastic tapes called HYDRAS (hygroscopic-driven artificial muscles),
Yet-Ming Chiang, the Kyocera Professor of Ceramics at MIT, was of the view that the existing technology is not perfect
#Researchers Develop Super-Hydrophobic Metal Surfaces Using Lasers Researchers have turned metal surfaces water repellent using femtosecond laser pulses.
Researchers from the University of Rochester have used femtosecond laser pulses to turn metals waterproof or super-hydrophobic.
said, his is the first time that a multifunctional metal surface is created by lasers that is super-hydrophobic (water repelling),
titanium and brass to short bursts of lasers. These short burst lasted for only millionth of a billionth of a second.
The optical and wetting properties of the surfaces of the three metals were altered by these nanostructures.
According to the researchers, properties they provide to the metal will not deteriorate. The super-hydrophobic properties of the laser-patterned metals are similar to the famous nonstick coating.
The project was financed by The Bill & Melissa Gates Foundation and Air force Office of Scientific research and is published in the Journal of Applied Physics y
#Superabsorbent Polymer Blows Up Brain Samples To Give a Better View Researchers have come up with an inexpensive technique for enlarging brain samples
They want to find more substances that can expand the specimens even more. ne thing we want to do is figure out how to expand the polymers even more.
Another priority for us is to build stronger polymers, or find a way of reinforcing them in the expanded state,
-or trade in textiles, clothing, iron and steel combined.""""Eliminating tariffs on trade of this magnitude will have a huge impact.
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