but not the other, said collaborator Michael Buszczak, an associate professor of molecular biology at UT Southwestern,
#Transition from 3 to 2 dimensions increases conduction Scientists from the MIPT Department of Molecular and Chemical Physics have described for the first time the behavior of electrons in a previously unstudied analogue of graphene, two-dimensional niobium telluride,
Andrei Geim and Konstantin Novoselov received the Nobel prize for their research on graphene, the most well-known among them.
For example, graphene is transparent, conducts current better than copper and has good thermal conductivity. Scientists believe that other types of two-dimensional materials may possess even more exotic properties.
such as concentrating solar energy and increasing signal speed in optical communications.""Invisibility may seem like magic at first,
We can change the way light waves are being reflected at will and ultimately focus a large area of sunlight onto a solar power tower, like
Nanogold, for example, has incredible optical properties that allow it to absorb light energy very well. Currently only tested in mice,
It's an advance that could have huge implications for everything from photography to solar power.
meaning it can gather a lot of light energy, and then scatters the light over a very large area,
this one very small optical device can receive light energy from all around and yield a surprisingly strong output.
Given the nanoresonator's capacity to absorb large amounts of light energy, the technology also has potential in applications that harvest the sun's energy with high efficiency.
In addition, Yu envisions simply letting the resonator emit that energy in the form of infrared light toward the sky,
and could enable new technologies in light sensing and solar energy conversion, "Yu says s
#Significant development in the understanding of macroscopic quantum behavior For the first time, the wavelike behaviour of a room-temperature polariton condensate has been demonstrated in the laboratory on a macroscopic length scale.
#For faster, larger graphene add a liquid layer (Nanowerk News) Millimetre-sized crystals of high-quality graphene can be made in minutes instead of hours using a new scalable technique,
In just 15 minutes the method can produce large graphene crystals around 2-3 millimetres in size that it would take up to 19 hours to produce using current chemical vapour deposition (CVD) techniques in
which carbon in gas reacts with, for example, copper to form graphene. False colour image comparing graphene created on a pristine platinum surface with graphene created on the liquid layer of platinum silicide.
Image: University of Oxford) Graphene promises to be a'wonder material'for building new technologies because of its combination of strength, flexibility, electrical properties,
and chemical resistance. But this promise will only be realised if it can be produced cost-effectively on a commercial scale.
so that carbon atoms in methane gas brushing the surface are inclined more to form large flakes of graphene.
A report of the research is published in the journal Nature Communications"Rapid epitaxy-free graphene synthesis on silicidated polycrystalline platinum".(
"Innovative substrate engineering for high quality 2d nanomaterials")'Not only can we make millimetre-sized graphene flakes in minutes
but this graphene is of a comparable quality to anything other methods are able to produce,
'Because it is allowed to grow naturally in single graphene crystals there are none of the grain boundaries that can adversely affect the mechanical and electrical properties of the material.'
and larger-scale graphene production for applications where very high quality graphene is needed.''Size-wise the new approach compares favourably with the common'Scotch tape method,'in
which a piece of tape is used to peel graphene fragments off a chunk of graphite,
But with the liquid layer of platinum silicide the researchers show that graphene crystals of 2-3 millimetres can be produced in minutes.
Out of all the techniques currently used to make different types of graphene CVD is the most promising for scaling up into a cost-effective industrial process.
with a thicker liquid layer to insulate it the graphene might not have to be removed from the substrate before it can be used-a costly
'This is a proof of principle study that shows that high-quality graphene, in the form of a single layer of carbon atoms, can be made to the size
'Of course a great deal more work is required before we get graphene technology, but we're now on the cusp of seeing this material make the leap from the laboratory to a manufacturing setting,
and scale up this technique to produce flakes of graphene in large wafer-sized sheets. This invention adds to the growing patent portfolio of nanomaterials and their production technologies from Professor Nicole Grobert's Nanomaterials By design Group.
which can be a useful component of biofuels. The work opens the door for scientists to manipulate such organisms to produce compounds useful as fuels or medicines."
This is useful not only for making commercially viable biofuels but also commodities such as pharmaceuticals,"said microbiologist Alex Beliaev, Pacific Northwest National Laboratory,
"In Pacific Northwest National Laboratorys Microbial Cell Dynamics Laboratory, scientists produce microorganisms for biofuels and alternative fuel research.
it's under particular scrutiny for its potential to make biofuels and other high-value products."
a compound that can be processed into biodiesel and higher-value products, such as soaps and detergents.
#An easy, scalable and direct method for synthesizing graphene in silicon microelectronics (Nanowerk News) In the last decade,
graphene has been studied intensively for its unique optical, mechanical, electrical and structural properties. The one-atom-thick carbon sheets could revolutionize the way electronic devices are manufactured
As a potential contact electrode and interconnection material, wafer-scale graphene could be an essential component in microelectronic circuits,
but most graphene fabrication methods are not compatible with silicon microelectronics, thus blocking graphene's leap from potential wonder material to actual profit-maker.
Now researchers from Korea University in Seoul, have developed an easy and microelectronics-compatible method to grow graphene
and have synthesized successfully wafer-scale (four inches in diameter), high-quality, multi-layer graphene on silicon substrates.
The method is based on an ion implantation technique, a process in which ions are accelerated under an electrical field and smashed into a semiconductor.
In a paper published this week in the journal Applied Physics Letters("Wafer-scale synthesis of multi-layer graphene by high-temperature carbon ion implantation"),from AIP Publishing
which takes graphene a step closer to commercial applications in silicon microelectronics. Wafer-scale (4 inch in diameter) synthesis of multi-layer graphene using high-temperature carbon ion implantation on nickel/Sio2/silicon.
Image: J. Kim/Korea University, Korea)" For integrating graphene into advanced silicon microelectronics, large-area graphene free of wrinkles, tears and residues must be deposited on silicon wafers at low temperatures,
which cannot be achieved with conventional graphene synthesis techniques as they often require high temperatures, "said Jihyun Kim, the team leader and a professor in the Department of Chemical and Biological engineering at Korea University."
"Our work shows that the carbon ion implantation technique has great potential for the direct synthesis of wafer-scale graphene for integrated circuit technologies."
"Discovered just over a decade ago, graphene is considered now the thinnest, lightest and strongest material in the world.
Graphene is completely flexible and transparent while being inexpensive and nontoxic, and it can conduct electricity as well as copper,
carrying electrons with almost no resistance even at room temperature, a property known as ballistic transport. Graphene's unique optical, mechanical and electrical properties have lead to the one-atom-thick form of carbon being heralded as the next generation material for faster, smaller, cheaper and less power-hungry electronics."
"In silicon microelectronics, graphene is a potential contact electrode and an interconnection material linking semiconductor devices to form the desired electrical circuits,
"said Kim.""This renders high processing temperature undesirable, as temperature-induced damage, strains, metal spiking
"Thus, although the conventional graphene fabrication method of chemical vapor deposition is used widely for the large-area synthesis of graphene on copper and nickel films,
000 degrees Celsius and a subsequent transfer process of the graphene from the metallic film to the silicon."
"The transferred graphene on the target substrate often contains cracks, wrinkles and contaminants,"said Kim."
"Thus, we are motivated to develop a transfer-free method to directly synthesize high quality, multilayer graphene in silicon microelectronics."
The nickel layer, with high carbon solubility, is used as a catalyst for graphene synthesis. The process is followed then by high temperature activation annealing (about 600 to 900 degrees Celsius) to form a honeycomb lattice of carbon atoms, a typical microscopic structure of graphene.
Kim explained that the activation annealing temperature could be lowered by performing the ion implantation at an elevated temperature.
multi-layer graphene by varying the ambient pressure, ambient gas, temperature and time during the treatment.
as the graphene layer thickness can be determined precisely by controlling the dose of carbon ion implantation.""Our synthesis method is controllable and scalable,
allowing us to obtain graphene as large as the size of the silicon wafer over 300 millimeters in diameter,
and to control the thickness of the graphene for manufacturing production n
#Degrading BPA with visible light and a new hybrid nanoparticle photocatalyst Over the course of the last half century, BPA has gone from miracle to menace.
Their findings, published this week in the journal APL Materials("Reduced graphene oxide and Ag wrapped Tio2 photocatalyst for enhanced visible light photocatalysis),
which the photocatalyst became excited by inducing localized surface plasmon resonance effects--a phenomenon in which energetic electrons at the surface of a material vibrate at a specific frequency
"The inclusion of a noble metal like silver in the ultraviolet-responsive Tio2 has extended significantly the spectrum towards the visible light through localized surface plasmon resonance effects,
Then, they wrapped the Ag/Tio2 nanoparticles in sheets of reduced graphene oxide (RGO), a thin layer of carbon atoms arranged in a honeycomb pattern.
The system exploits the large surface-to-volume ratio of nanoparticles, while the photoinduced precipitation ensures nanomaterials are released not in the environment.
Bjrn Hgberg and Erik Benson The team behind the study likens the new approach to a 3d printer for nanoscale structures.
#Wafer-thin material heralds future of wearable technology (Nanowerk News) UOW Institute for Superconducting and Electronic Materials (ISEM) has pioneered successfully a way to construct a flexible,
Toward Developing High-performance Graphene-Based Architectures for Energy storage devices"."The conundrum researchers have faced in developing miniature energy storage devices,
the head of ISEM Energy storage Division, have developed a three-dimensional structure using a flat-pack self-assembly of three components:
graphene, a conductive polymer and carbon nanotubes, which are atom-thick latticelike networks of carbon formed into cylinders.
Graphene, made from single atom-thick layers of graphite, was a suitable candidate due its electronic performance
The graphene in liquid form was mixed with the conductive polymer and reduced to solid and the carbon nanotubes carefully inserted between the graphene layers to form a self-assembled flat-packed,
wafer-thin supercapacitor material. he real challenge was how to assemble these three components into a single structure with the best use of the space available,
or ratios of the components appropriately in order to obtain a composite material with maximum energy storage performance was another challenge.
which enabled natural chemical interactions to prevent the graphene layers clumping together. The result was a 3d shape with, thanks to the carbon nanotubes, a massive surface area, excellent charge capacity that is also foldable.
or sophisticated equipment. ur graphene-based flexible composite is highly conductive, lightweight, is able to fold like a roll
which data media store information may also be suitable as an extremely fast light switch for optical communication or data processing.
if a GST layer were sandwiched between two thin graphite layers or even between two layers of graphene.
The sheets of cross-linked carbon atoms of which graphene is comprised fulfil the necessary requirements. The physicists in Ralph Ernstorfers group now want to experiment further with precisely these sandwiches of different materials.
In this way, he and his colleagues want to bring GST into a position where it can act as a light switch for optical data processing as well e
Thats what Northeastern physicists Swastik Kar and Srinivas Sridhar found during their four-year project to modify graphene, a stronger-than-steel infinitesimally thin lattice of tightly packed carbon atoms.
the addition of boron and nitrogen to graphenes carbon to connote the conductivity necessary to produce an electrical insulator.
Perhaps the California that has been promoted by socialist-minded propagandists can be recreated as a virtual reality destination for Oculus Rift fans,
there will be instances when the autonomous car needs to hand control back to the driver, added Dr Epple. o do this safely the car will need to know
and Genomics. ur study marks a significant step towards understanding the biology underpinning schizophrenia, which is an incredibly complex condition
based at Cardiff University MRC Centre for Neuropsychiatric Genetics and Genomics. This paper not only confirms their previous findings,
The TOBI project, funded by the European commission, aims at developing brain-machine interfaces for people with disabilities to control telepresence robots or a wheelchair using only mental commands.
A study published in June 2015 in the Proceedings of the IEEE shows that disabled people manage to take the control of a telepresence robot as precisely as valid persons Mature technology available The positive results of this research bring to a close the European
#Artificial Neurons Can Communicate in the Same Way as Human Neurons Scientists at Karolinska Institutet have managed to build a fully functional neuron by using organic bioelectronics.
However, scientists at the Swedish Medical Nanoscience Centre (SMNC) at Karolinska Institutet Department of Neuroscience in collaboration with colleagues at Linköping University, have created now an organic bioelectronic device that is capable of receiving chemical signals,
presented in the journal Biosensors & Bioelectronics, will improve treatments for neurologial disorders which currently rely on traditional electrical stimulation.
the biosensor could be placed in one part of the body, and trigger release of neurotransmitters at distant locations.
and Agneta Richter-Dahlfors in Biosensors & Bioelectronics. Published online April 22 2015 doi: 10.1016/j. bios. 2015.04. 058abstractan organic electronic biomimetic neuron enables auto-regulated neuromodulationcurrent therapies for neurological disorders are based on traditional medication and electric stimulation.
is achieved by connecting enzyme-based amperometric biosensors and organic electronic ion pumps. Selective biosensors transduce chemical signals into an electric current,
which regulates electrophoretic delivery of chemical substances without necessitating liquid flow. Biosensors detected neurotransmitters in physiologically relevant ranges of 50 M
showing linear response above 20 m with approx. 0. 1 na/M slope. When exceeding defined threshold concentrations, biosensor output signals, connected via custom hardware/software,
activated local or distant neurotransmitter delivery from the organic electronic ion pump. Changes of 20 M glutamate or acetylcholine triggered diffusive delivery of acetylcholine,
which is different from the Google (x) lab that develops big-vision innovations such as self-driving cars. e are enabling interactive textiles,
and then emansthem and converts them into Unmanned aerial vehicles (UAVS) using advanced systems and sensors. Program director for the US NAVY Captain Jeff Dodge likened the upgrade from the MQ-8b based on a smaller airframe to the model aircraft to a brain transplant. e are taking the computer
and 5500 metres up and can lift more than 3000kg of payload and fuel. That gives tactical planners incredible flexibility
mission payload operators and a tactical commander who are located in a control room with three large TV screens on the wall
much as solar panels convert light energy into electrical energy. That voltage was boosted then to a useful level by a DC-DC converter (arxiv. org/abs/1505.06815.
Small devices could use this as part of an internet of things, says Ben Potter at the University of Reading, UK."
"This whole levitation thing exploits unusual magnetic properties of very weird elements,"says William Grover of the University of California Riverside.
but incorporates 3d scanners, multispectral cameras and gas sensors to assess the health of someone looking into it.
The 3d scanners analyse face shape to spot weight gain or loss while the multispectral cameras can estimate heart rate or haemoglobin levels.
which uses Google glass and other wearables to measure someone mood and help them manage emotions.
#Researchers Create Artificial organs That Fit in Your Hand Great balls of cells! Scientists are developing mock human organs that can fit in the palm of your hand.
President Clinton convened a cybersecurity working group. Attorney general Janet Reno announced a manhunt for Mafiaboy.""You know I'm a pretty calm, collected, cool person,
The Clinton administration sent cybersecurity experts to testify.""It was a pretty big ordeal, "says Calce."
and Anthem says it has hired a cybersecurity firm to examine its systems and recommend solutions.
and will lead to a better understanding of quark formations created by nuclear forces, with possible implications in astrophysics."
#US Air force contracts 3d Systems to make next-gen components 3d Systems is taking part in a $1. 3 million contract to develop cutting-edge aircraft heat exchanger to be manufactured using 3d printing.
this project will utilize 3ds's Direct Metal Printing technology as well as the additive manufacturing and materials expertise of Penn State's Center for Innovative Materials Processing through Direct Digital Deposition (CIMP-3d).
3ds commented that such qualified use of additive manufacturing ill not only revolutionize jet engine manufacturing, but it will also open this technology to a multibillion-dollar heat exchanger market.
and 3d printing will allow us to explore higher-performing and lower-cost conformal parts. As a result, both the Air force and the defense industry are poised to benefit greatly from this directed project.
and defense 3d printing manufacturing capabilities t a convincing scale The contracts were administered also by America Makes
and Direct Metal 3d printing capabilities to meet the high standards of production demanded by the US Air force.
Sandia National Laboratory and Lockheed martin. The project is designed to integrate predictive technologies with 3dssls 3d printers to dynamically monitor parts at the layer level during the manufacturing process,
The second contract in collaboration with the Applied Research Laboratory of Pennsylvania State university in partnership with Honeywell International and Northrop grumman, leverages 3dsdirect Metal 3d printing.
The tests revealed that the efficiency of the cellsconverting solar energy into electricity was 16.9%.%Professor Getautis commented,
Also, both materials have a similar efficiency of converting solar energy into electricity. That means that our semiconductors have similar characteristics to the known alternatives
including those that are made with graphene electrodes a
#Nivolumab helps fight Cancerous Lung Tumors A trial has suggested that a therapy for lung cancer has the ability to double the life expectancy in patients.
They mentioned that they are ready to play their part and work together with renewable energy sources like wind and solar power.
QD solar cells have the potential to capture solar energy more efficiently than other cells available commercially today.
For more information, visit www1. lehigh. edu. Harsh Environments No Match for New Fiber Sensor Nanofiber Fabrication Boosts Quantum computing Sulfur Copolymers Boost IR Optics
#Graphene Filaments Provide Tunable On-Chip Light source Graphene Filaments Provide Tunable On-Chip Light Sourcenew YORK, June 15,
Researchers from the U s. and South korea collaborated to develop an on-chip visible light source using filaments made of graphene.
They attached small strips of graphene to metal electrodes, suspended the strips above a silicon substrate,
and graphene-based on-chip optical communications.""Schematic illustration of electrically biased suspended graphene and light emission from the center of the suspended graphene.
Images courtesy of Young Duck Kim/Columbia Engineering. The ability to create light in small structures on the surface of a microchip is a crucial step towards the development of fully integrated photonic circuits.
The ability of graphene to achieve such high temperatures without melting the substrate or the metal electrodes is due to another interesting property:
graphene becomes a much poorer conductor of heat. High temperatures are confined to a small ot spotin the center."
"At the highest temperatures, the electron temperature is much higher than that of acoustic vibrational modes of the graphene lattice,
"These unique thermal properties allow us to heat the suspended graphene to up to half of the temperature of the sun
as compared to graphene on a solid substrate.""By measuring the spectrum of the light emitted from the graphene,
the team was able to show that graphene was reaching temperatures of above 2500°Celsius,
hot enough to glow brightly.""The visible light from atomically thin graphene is so intense that it is visible even to the naked eye,
without any additional magnification,"said Young Duck Kim, a postdoctoral research scientist at Columbia. An optical image, top,
and micrograph, bottom, of bright, visible light emission from suspended graphene. The spectrum of the emitted light showed peaks at specific wavelengths,
which the team discovered was due to interference between the light emitted directly from the graphene
and light reflecting off the silicon substrate and passing back through the graphene.""This is only possible
because graphene is transparent, unlike any conventional filament, and allows us to tune the emission spectrum by changing the distance to the substrate,
The team also demonstrated the scalability of their technique by realizing large-scale arrays of graphene light emitters grown with a chemical vapor deposition (CVD) process."
but using it in its pure form graphene and at its ultimate size limit one atom thick,
IPIC to Commercialize OCT Biosensor Raman Imager Speeds Cancer Detectio e
#Continuously Disinfecting Light Fixtures Commercialized Designed to continuously disinfect the air and surfaces in hospitals,
#Boron Turns Graphene into Blue light Emitter FRANKFURT, Germany, July 14, 2015 Chemists at Goethe University Frankfurt have developed a new class of organic luminescent materials through the targeted introduction of boron
atoms into graphene. The compounds exhibit an intense blue fluorescence and, consequently, are of interest for use as organic LEDS (OLEDS).
Within graphene, benzene rings are fused to form a honeycomb structure. Sections of this structure, referred to as nanographenes or polycyclic aromatic hydrocarbons (PAHS), play an integral role in organic electronics.
Within the study, boron atoms specifically replaced the two meso carbon atoms within the PAH, which resulted in its ability to transform a near-infrared dye into a blue luminophore.
The boron-containing nanographenes have an impact on two key properties of an OLED luminophore
"For a long time, efforts were focused largely on affecting the properties of nanographenes by chemically manipulating their edges,
Hertz and Wagner anticipate that such materials like the graphene flakes they developed will be particularly suitable for use in portable electronic devices,
This wearable device would then be just one step from a product which sends alerts to smartphones
#A BATTERY MADE FROM RHUBARB (SORT OF) The next step for renewable energy is to figure out how to store all the power we create.
but this stretchy rubber sheet could help power the Internet of things one day. Japanese electronics company Ricoh says the rubber generates electricity while it stretches.
Beyond flexible sensors, the company is interested in using the technology to ontribute to the age of the Internet of things,
#Scientists Make Friction Disappear By Coating Diamonds With Graphene Diamonds are already one of the hardest natural substances known to science.
But combine them with graphene, and diamond nanoparticles are also incredibly slippery, which can be useful
Scientists at Argonne National Laboratory recently announced that the combination of tiny bits of diamond with the two-dimensional graphene created tiny structures that had superlubricity--meaning that the friction between them
When the diamond nanoparticles came in contact with the thin sheets of graphene (carbon that's only an atom thick) the graphene rolled up around the diamond nanoparticles,
With the new graphene coating, the diamond particles could roll far more easily over a larger diamond-like surface that the researchers used as a testing ground.
It's specifically the interaction between graphene and diamond that makes the superlubricity possible right now,
and plastics that currently dominate 3d printing. The researchers presented their work this week at a conference titled ew Materials From Trees.
but it hasn been easy to put it in a form that can be 3d printed.
Unlike the metal or plastic commonly used in 3d printing, cellulose doesn melt when heated, which means it much harder to mold into different objects.
cellulose is a very abundant polymer. 3d printed objects made of cellulose would biodegradable and could even capture carbon dioxide that would
making waves (and their energy) an easily accessible renewable energy option. The DOE is currently sponsoring the Wave Energy Prize
This information is compiled into a single X-ray-like image that the surgeon can see in real time with Google glass
which allows devices like autonomous vehicles or robots to have a three-dimensional spatial awareness. The team new LAM-awaresystem maps out its environment
#Wear a 3d printed Onesie That Acts as a Walking Air cleaner Dutch designer Borre Akkersdijk debuts wearable tech suit with stiched-in solutions to pollutionpsfk meets with Borre Akkersdijk,
Founder of the Dutch design company at Northside Festival to learn more about the debut of the BB Suit 3d printed onesie that doubles as an air purifiernd the future of wearable fashion.
-generating tiles are gaining a lot of interest in the renewable energy sector. The startup reached its funding goal of £750, 000 (around $1. 2 million) in 60 hours from 535 investors on Crowdcube.
The crowdfunding platform bypasses traditional investing routes and allows individuals get a stake in highly desirable companies.
and Sunburn With This Smart Bikini Spinali Design brings wearable technologies to the beach (where skin cancer runs rampant) The french are credited with creating the modern bikini,
Cybersecurity is a key area where Japan and the United states are deepening their military partnership under a set of new security guidelines released in April,
China's Defense Ministry expressed concern about the new strategy saying it would worsen tension over Internet security.
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