where single atoms connect to each other in a diamond-like grid structure, each face of a crystal (1, 1,
#This new high-power diamond laser can cut steel Although lasers based on diamond have been around around for several years,
they have never been very powerful. That beginning to change now as new CVD fabrication methods provide larger,
and purer, diamonds. Researchers from the Fraunhofer Institute for Applied Optics in Germany, and the MQ Photonics Research Centre in Australia, have built just a diamond laser with 20 times more power than anything yet to date.
The ability to slice through steel has always been the benchmark for cutting power. With 380 Watts@1240nm, the new laser has enough oomph to handle the job.
Diamond optics can not only handle the heat, but can also transfer it away from the hot zone faster that just about anything else.
The new diamond lasers make use of something known as Raman conversion to shift light to wavelengths that are long enough to be absorbed efficiently by steel.
with many noting that the new diamond laser is equal to 00,000 laser pointers. In light of the ample variance in both wavelength and power of pointer devices, those kinds of comparisons should probably be taken as rough.
Diamond lasers can potentially unleash more than just new cutting or machining technologies. Since silicon doesn reflect x-rays
Diamond-based x-ray lasers, on the other hand, would be a whole new ball game. CVD diamond still has its costs,
but they are rapidly falling while output quality is rising. It would seem that these trends should soon make off-the-shelf diamond lasers fairly commonplace a
#Accidental nanoparticles could let lithium ion batteries live another day A new study from MIT could keep lithium ion battery technology on the track for another few laps,
Riverside utilized an arrangement consisting of graphene film layers set up as a p-n (positive-negative) junction semiconductor, a sub-50 femtosecond, titanium-sapphire,
even with hard materials like steel and sapphire, it shows that scale-like texturing has potential application for dry-contact devices and/or environments that benefit from low friction and high wear resistance c
Quantum CMOS Most of the prototype quantum computers developed so far feature a limited number of entangled qubits made from exotic and expensive materials like cesium or diamonds and which,
Most of the prototype quantum computers developed so far feature a limited number of entangled qubits made from exotic and expensive materials like cesium or diamonds and which,
it turns into diamonds. Turning smog into diamonds would require too much energy, but the designer, who has created also solar bike paths in The netherlands,
and glow in the dark roads, had another idea. He envisioned a mog Free Towerthat would operate using the same air purifying technology hospitals do.
Using the advanced capabilities at the UK synchrotron, Diamond Light source, the team were able to scrutinise the metal organic frameworks in atomic detail.
Physical science Director at Diamond, comments:""This work is an exciting example of how work with synchrotron radiation
where single atoms connect to each other in a diamond-like grid structure, each face of a crystal (1, 1,
#Gold-diamond nanodevice for hyperlocalised cancer therapy: Gold nanorods can be used as remote controlled nanoheaters delivering the right amount of thermal treatment to cancer cells,
thanks to diamond nanocrystals used as temperature sensors Abstract: Precise targeting biological molecules, such as cancer cells,
Using a chemical method to attach gold nanorods to the surface of a diamond nanocrystal, the authors have invented a new biocompatible nanodevice.
The authors'lab specialises in fabricating bright fluorescent diamond nanocrystals. The paticularity of these nanocrystals is that they contain a high concentration of punctual colour centre defects.
The novelty of this study is that it shows that it is possible to use diamond nanocrystals as hypersensitive temperature sensors with a high spatial resolution-ranging from 10 to 100 nanometers-to monitor the amount of heat delivered to cancer cells s
#Scientists pave way for diamonds to trace early cancers Physicists from the University of Sydney have devised a way to use diamonds to identify cancerous tumours before they become life threatening.
synthetic version of the precious gem can light up early-stage cancers in nontoxic, noninvasive Magnetic resonance imaging (MRI) scans.
researchers from the University investigated how nanoscale diamonds could help identify cancers in their earliest stages."
"We knew nano diamonds were of interest for delivering drugs during chemotherapy because they are largely nontoxic and non-reactive,
"We thought we could build on these nontoxic properties realising that diamonds have magnetic characteristics enabling them to act as beacons in MRIS.
a process of aligning atoms inside a diamond so they create a signal detectable by an MRI SCANNER."
"By attaching hyperpolarised diamonds to molecules targeting cancers the technique can allow tracking of the molecules'movement in the body,
"JQI Fellow Vladimir Manucharyan and colleagues at Harvard university used NV centers in diamond to sense the properties of magnetic field noise tens of nanometers away from the silver samples.
JQI) Diamond, which is a vast array of carbon atoms, can contain a wide variety of defects.
A conductive silver sample is deposited onto a diamond substrate that contains NV centers. While these defects can occur naturally
A diamond chip about one-twentieth the size of a thumbnail could contain trillions of nitrogen vacancies,
The MIT researchers report their new device in the latest issue of Nature Physics("roadband Magnetometry and Temperature Sensing with a Light Trapping Diamond Waveguide".
#Atomic structure identified in coherent interfaces between superhard materials of diamond and boron nitride (Nanowerk News) The research group led by Professor Yuichi Ikuhara (also appointed as a professor at Tokyo University), Associate professor Zhongchang Wang and Assistant professor Chunlin Chen at the Advanced Institute for Materials Research
in collaboration with Group Leader Takashi Taniguchi at the National Institute for Materials science (NIMS) and Japan Fine Ceramics Center (JFCC), succeeded for the first time in identifying the atomic structure and bonding mechanism in coherent interfaces between diamond
a and b) HAADF STEM images of c-BN/diamond interface viewed in direction parallel to 1-10 zone axis,(a) coherent area without defects,(b) area with defects,
(c and d) HAADF STEM images of c-BN/diamond interface viewed in direction parallel to 11-2 zone axis,(c) area without defects,
and extensive theoretical calculation based on first principles, the group revealed that in coherent interfaces between diamond and cubic boron nitride,
This study was published in the online version of the UK scientific journal Nature Communications("Misfit accommodation mechanism at the heterointerface between diamond and cubic boron nitride
where single atoms connect to each other in a diamond-like grid structure, each face of a crystal (1, 1,
The team tested the material by scratching it with stainless steel tweezers, screwdrivers, diamond-tipped scribers,
which we find, if not diamonds in the rough, then at least useful nuggets, says Forbus. ne might miss something,
Called Spinel, the material is made in a lab from synthetic powder. Under the right conditions
An added bonus to this method is that it allows the spinel to be pressed into shapes--for example, a dome for a new camera turret or a sloping panel that's flush with a wing.
spinel does it in a much lighter way. From an NRL press release about the material:
"If you replaced that with spinel, you'd reduce the weight by a factor of two
where single atoms connect to each other in a diamond-like grid structure, each face of a crystal (1, 1,
the researchers used a single-point diamond turning lathe. The lenses were enclosed then in an all-plastic, 3-D-printed microscope housing and objective.
Team members are in the process of spinning out a product called Emerald that aims to detect, predict and prevent falls among the elderly.
In August the team presented Emerald to President Obama as part of the White house first annual Demo Day. n the same way that cellphones and Wifi routers have become indispensable parts
Team members are in the process of spinning out a product called Emerald that aims to detect, predict and prevent falls among the elderly.
In August the team presented Emerald to President Obama as part of the White house first annual Demo Day. n the same way that cellphones and Wifi routers have become indispensable parts
and Ruby Dimase Undergraduate Summer Fellowship offered through the Brown School of engineering. Williams received a Karen T. Romer Undergraduate Teaching and Research Award.
#Quantum states in a nano-object manipulated using a mechanical system Scientists at The swiss Nanoscience Institute at the University of Basel have used resonators made from single-crystalline diamonds to develop a novel device in
the research team led by Georg H. Endress Professor Patrick Maletinsky described how resonators made from single-crystalline diamonds with individually embedded electrons are suited highly to addressing the spin of these electrons.
These diamond resonators were modified in multiple instances so that a carbon atom from the diamond lattice was replaced with a nitrogen atom in their crystal lattices with a missing atom directly adjacent.
In these"nitrogen-vacancy centers,"individual electrons are trapped. Their"spin"or intrinsic angular momentum is examined in this research.
strain develops in the diamond's crystal structure. This in turn, influences the spin of the electrons,
It is conceivable that this diamond resonator could be applied to sensors--potentially in a highly sensitive way
#Scientists pave way for diamonds to trace early cancers Physicists from the University of Sydney have devised a way to use diamonds to identify cancerous tumours before they become life threatening.
synthetic version of the precious gem can light up early-stage cancers in nontoxic, noninvasive Magnetic resonance imaging (MRI) scans.
researchers from the University investigated how nanoscale diamonds could help identify cancers in their earliest stages."
"We knew nano diamonds were of interest for delivering drugs during chemotherapy because they are largely nontoxic and non-reactive,
"We thought we could build on these nontoxic properties realising that diamonds have magnetic characteristics enabling them to act as beacons in MRIS.
a process of aligning atoms inside a diamond so they create a signal detectable by an MRI SCANNER."
"By attaching hyperpolarised diamonds to molecules targeting cancers the technique can allow tracking of the molecules'movement in the body,
the researchers used a single-point diamond turning lathe. The lenses were enclosed then in an all-plastic, 3d-printed microscope housing and objective.
#Internal fingerprint sensor peers inside fingertips for more surefire ID In the 1971 film Diamonds are Forever,
British secret agent James bond uses fake fingerprints as part of a ploy to assume the identity of a diamond smuggler.
#Transparent Armor based on Spinel Could Also Ruggedize Your Smart Phone Imagine a glass window that tough like armor,
Except it not glass, it a special ceramic called spinel {spin-ELL} that the U s. Naval Research Laboratory (NRL) has been researching over the last 10 years. pinel is actually a mineral,
a thinner layer of spinel can give better performance than glass. or weight-sensitive platforms-UAVS unmanned autonomous vehicles, head-mounted face shieldst a game-changing technology.
NRL invented a new way of making transparent spinel, using a hot press, called sintering.
Sanghera says spinel has nique optical properties; not only can you see through it, but it allows infrared light to go through it.
That means the military, for imaging systems, an use spinel as the window because it allows the infrared light to come through.
NRL is also looking at spinel for the windows on lasers operating in maritime and other hostile environments. e got to worry about wave slap and saltwater and things like that,
And so that where spinel comes into its own, says Sanghera. Says Sanghera, verything we do,
What is spinel? Spinel can be mined as a gemstone; a famous example is the Black Prince Ruby,
which is actually spinel with a color dopant. NRL chemists have synthesized also their own ultra-high purity spinel powder,
and other synthetic versions are commercially available. he precursors are all earth abundant, so it available in reasonably low cost, says Sanghera.
The spinel NRL makes is a polycrystalline material, or a lot of crystal particles all pressed together.
Whereas with glass, crack that forms on the surface will go all the way through, spinel might chip
but it won crack. t like navigating through the asteroid belt, you create a tortuous path:
if I have all these crystals packed together, the crack gets deflected at the hard crystals:
When scientists first started trying to make glass-like spinel, they were using a crucible instead of a press. big problem with growing crystals is that you have to melt the starting powder at very high temperatures,
the spinel will come out flat. ut if I have a ball and socket joint, put the powder in there,
with the sintering aid they were adding to the spinel powder. t about one percent of a different powder,
and the spinel will come out clear across the press. To further increase the quality of the optic, ou can grind
and polish this just like you would do gems, says Sanghera. This is the most costly part of the process. ne of the things wee looking at is,
The military in particular may want to use spinel as transparent armor for vehicles and face shields.
and glass perhaps five inches thick. f you replaced that with spinel, you reduce the weight by a factor of two or more,
The military also interested in using spinel to better protect visible and infrared cameras on planes and other platforms.
Spinel windows could also protect sensors on space satellites, an area Sanghera interested in testing. ou could leave these out there for longer periods of time,
NRL is also looking at spinel (and other materials) for next generation (NEXTGEN) lasers. asers can be thought of as a box comprised of optics,
working with ltra high purityspinel powder theye synthesized in NRL clean rooms, spinel incredible potential. For active laser applications, theye demonstrated how sintering can be used with materials other than spinel to make a laser that xcellent optical quality.
Instead of spinel they use, hings like yttria or lutecia and and dope them with rare earth ions.
NRL has transitioned both types of laser materials and applications to industry. What makes NRL tick is solving problems Sanghera came to NRL in 1988,
and a lot of his success with spinel comes from that heritage of insisting on purity and quality. n optical fiber very long:
for instance, function as a coupled temperature-moisture sensor that rapidly switches from turquoise to dark blue colour for easy identification, reversibly, upon heating.
hwachman-Diamond Syndromeand a more common form of acute leukaemia to a common pathway involved in the construction of ribosomes.
This provides an explanation for how cellular processes go awry in both Shwachman-Diamond syndrome and one in 10 cases of T-cell acute lymphoblastic leukaemia.
During testing, the team scratched the material with stainless steel tweezers, screwdrivers, diamond-tipped scribers and pummeled it with hundreds of thousands of hard, heavy beads.
To meet that need scientists at the U s. Naval Research Laboratory (NRL) have developed a method to fabricate nanocrystalline spinel that is 50%harder than the current spinel armor materials used in military vehicles.
With the highest reported hardness for spinel NRL's nanocrystalline spinel demonstrates that the hardness of transparent ceramics can be increased simply by reducing the grain size to 28 nanometers.
This harder spinel offers the potential for better armor windows in military vehicles which would give personnel and equipment such as sensors improved protection along with other benefits.
To create the harder spinel the NRL research team sinters or consolidates commercial nanopowders into fully dense nanocrystalline materials.
However the NRL team is the first to succeed in making this harder spinel through their development of the Enhanced High pressure Sintering (EHPS) approach explains Dr. James Wollmershauser a lead investigator in the research.
Using this EHPS approach to create the nanocrystalline spinel the NRL research team did not observe any decline in density or fracture resistance due to residual porosity.
Other researchers have tried to make nanocrystalline spinel but they have had all problems with the final product such as a reduced density reduced fracture resistance or reduced transparency.
In current applications spinel and sapphire (which is also very hard) are used to create materials for military armor windows.
A drawback with sapphire is that it is expensive to make into windows. By increasing the hardness of spinel even further NRL researchers can make a material harder than sapphire
and possibly replace sapphire windows with windows made out of nanocrystalline spinel. Also harder nanocrystalline spinel windows can be made thinner and still meet the current military specifications.
This thinness translates to weight savings on the vehicle. So the NRL-developed nanocrystalline spinel brings improvements in hardness window thickness and weight and cost.
A final benefit is that the NRL-developed nanocrystalline spinel is highly transparent making it useful in UV visible and infrared optics.
The armor material used by the military needs to be transparent so that both equipment and personnel can see.
Different sensors see different wavelengths of light. Infrared is important for heat-seeking capabilities. UV imaging can be used to detect threats not seen in the visible spectrum.
A single window that could be produced using the NRL-developed nanocrystalline spinel would be transparent across many technologically important wavelengths easing design
Beyond the use for a harder spinel in armor windows there could be other potential Dod and civilian applications in better/stronger office windows smartphones and tablets screens military/civilian vehicles
And Driverup, a lending platform for automotive financing, announced a $50 million Series A last week from Emerald Development Managers
#Cheap and Nearly Unbreakable Sapphire Screens Come into View This fall, rumor has it, Apple will start selling iphones with a sapphire screen that is just about impossible to scratch.
The supposed supplier of that sapphire, GT Advanced Technologies, can confirm as much. But this week the company showed
me a new manufacturing process that produces inexpensive sheets of sapphire roughly half as thick as a human hair,
making it possible to add a tough layer of sapphire to just about any smartphone or tablet screen relatively cheaply (see our Next Smartphone Screen May be made of Sapphire.
The manufacturing technology known as an ion accelerator, can make fine sheets of other costly materials,
so it could also lead to better and cheaper electronics and solar cells. Sapphire, or crystalline aluminum oxide, is made in nature
It is second only to diamond in hardness, although incorrect processing can leave defects that make it brittle.
But sapphire has been too expensive for widespread use. A screen made entirely out of sapphire
But laminating glass with sapphire could bring the cost down to $6, according to estimates by Eric Virey, an analyst for the market research firm Yole Développement.
The conventional approach to making sheets of sapphire is to saw a large crystal of the materialay 40 centimeters acrossnto wafers a few hundred micrometers thick.
and then grinding the sapphire down, which wastes huge amounts of sapphire. GT uses a different approach in its new machine,
The machine shoots hydrogen ions at a wafer of sapphire, implanting the ions to a depth of 26 micrometers.
which expands and causes a 26-micrometer-thick layer of sapphire to lift off. Ted Smick
To explain, graphene is essentially a form of carbon, just like diamonds or the lead in pencils.
diamond-shaped structure in order for cells to grow throughout the structure and supporting bone growth.
in addition to SPGM#DOC and Spinel, #which we plan to employ in our own catalyst coatings
including Spinel, #with more interim results soon to be announced
#Mild Carbonization Process Converts Polymer Organic Frameworks into Nanometer-Thick Carbon Sheets"We have developed a'designer carbon'that is both versatile and controllable,
The new bike features a more traditional diamond-frame design when compared to its predecessors,
For this new estimate, Tarduno and his team looked at tiny zircon gemstones in Western australia that date back to the earliest two eons in the planet's history the Archean and Hadean periods.
#Scientists create riction-freematerial US Department of energy Scientists at the Argonne National Laboratory have found a way to use diamonds
Led by nanoscientist Ani Sumant of Argonne Center for Nanoscale Materials (CNM) and Argonne Distinguished Fellow Ali Erdemir of Argonne Energy systems Division, the Argonne team combined diamond
and a diamond-like carbon material to create superlubricity, a highly-desirable property in which friction drops to near zero.
as the graphene patches and diamond particles rub up against a large diamond-like carbon surface, the graphene rolls itself around the diamond particle, creating something that looks like a ball bearing on the nanoscopic level. he interaction between the graphene
and the diamond-like carbon is essential for creating the uperlubricityeffect, he said in a statement. he two materials depend on each other.
By creating the graphene-encapsulated diamond ball bearings, or scrolls, the team found a way to translate the nanoscale superlubricity into a macroscale phenomenon.
Because the scrolls change their orientation during the sliding process, enough diamond particles and graphene patches prevent the two surfaces from becoming locked in state.
The team used large-scale atomistic computations on the Mira supercomputer at the Argonne Leadership Computing Facility to prove that the effect could be seen not merely at the nanoscale
A nano array image of Vermeer famous painting irl with a Pearl Earring which brilliantly displays her ruby lips
An example of Pearl can be viewed at: www. nanosecurity. ca/newsrelease2015may27. Doug Blakeway, Nanotech Chief executive officer, commented,
n initial showing of Pearl to the banknote industry came back with comments of having never seen such a bright visual effect in a security device.
Immediate interest in Pearl has initiated discussions with issuing authorities. Nanotech is now focusing its efforts on commercial applications of its technology;
Graphene and diamonds prove a slippery combination Abstract: Scientists at the U s. Department of energy's Argonne National Laboratory have found a way to use tiny diamonds
and graphene to give friction the slip, creating a new material combination that demonstrates the rare phenomenon of"superlubricity."
combined diamond nanoparticles, small patches of graphene-a two-dimensional single-sheet form of pure carbon-and a diamond-like carbon material to create superlubricity, a highly-desirable property in
which friction drops to near zero. According to Erdemir, as the graphene patches and diamond particles rub up against a large diamond-like carbon surface, the graphene rolls itself around the diamond particle, creating something that looks like a ball bearing on the nanoscopic level."
"The interaction between the graphene and the diamond-like carbon is essential for creating the'superlubricity'effect,
"he said.""The two materials depend on each other.""At the atomic level, friction occurs when atoms in materials that slide against each other become"locked in state,
"By creating the graphene-encapsulated diamond ball bearings, or"scrolls",the team found a way to translate the nanoscale superlubricity into a macroscale phenomenon.
enough diamond particles and graphene patches prevent the two surfaces from becoming locked in state.
Graphene and diamonds prove a slippery combination June 10th, 2015govt. -Legislation/Regulation/Funding/Policy VP: Iran Ranks 15th in World in Producing Science, 7th in Nanotechnology June 13th,
Graphene and diamonds prove a slippery combination June 10th, 2015chip Technology Iranian Researchers Model, Design Optical Switches June 13th, 2015new boron compounds for organic light-emitting diodes:
Graphene and diamonds prove a slippery combination June 10th, 2015moving sector walls on the nano scale June 6th, 2015discoveries Nature Communications:
Graphene and diamonds prove a slippery combination June 10th, 2015sensors Designer electronics out of the printer:
Graphene and diamonds prove a slippery combination June 10th, 2015researchers analyze the structure of bird feathers to create hues without dye June 8th, 2015environmental Issues to Hamper Growth of Global Nanocomposites Market June 4th, 2015industrial Industrial Nanotech,
Graphene and diamonds prove a slippery combination June 10th, 2015govt. -Legislation/Regulation/Funding/Policy Toward nanorobots that swim through blood to deliver drugs (video) June 17th,
Imaging Scientists film shock waves in diamond: X-ray laser opens up new avenues of research in material science June 18th, 2015a new way to image surfaces on the nanoscale:
Method could be useful in developing green energy and a better understanding of rust June 18th, 2015news and information Scientists film shock waves in diamond:
2015cellulose from wood can be printed in 3-D June 17th, 2015new Sensors Measure Blood Anticoagulation Drug June 17th, 2015discoveries Scientists film shock waves in diamond:
/Essays/Reports/Podcasts/Journals/White papers Scientists film shock waves in diamond: X-ray laser opens up new avenues of research in material science June 18th,
HZB team decodes relationship between magnetic interactions and the distortions in crystal structure within a geometrically'frustrated'spinel system Abstract:
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.
The results were published in Physical Review B. Spinels consist of densely packed, highly symmetrical planes of oxygen atoms (somewhat like a densely packed box of marbles) where different metallic elements are lodged in the spaces between them.
The embedded metal ions in the Ni1-xcuxcr2o4 spinel system cause a distortion of the crystal structure.
The HZB team has analysed now comprehensively the chromium-spinel system and have explained the complex phase diagram at a fundamental level for the first time.
The series begins with samples of pure nickel-chromium spinel (x=0; a green powder) and continues with increasing proportions of copper.
which lies far below room temperature for pure nickel-spinel as well as for copper-spinel.""We were able for the first time to determine the magnetic characteristics exactly
Peninsula of orthorhombic state At a mixture ratio of 85%nickel and 15%copper, the spinel system displays a kind of narrow peninsula of orthorhombic state in the phase diagram where the observed Anm
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