that sheds empirical light on the inner workings of health care in the U s. The study takes advantage of Oregon recent use of a lottery to assign access to Medicaid, the government-backed health-care plan for low-income
#Creating synthetic antibodies MIT chemical engineers have developed a novel way to generate nanoparticles that can recognize specific molecules, opening up a new approach to building durable sensors for many different compounds
it has strong hydrodynamic interactions with both the confining walls and any neighboring particles. These interactions,
As a particle approaches the wall, the perturbation it creates in the fluid is reflected back by the wall,
just as waves in a pool reflect from its wall. This reflection forces the particle to flip its orientation and move toward the center of the channel.
Slightly asymmetrical particles will overshoot the center and move toward the other wall, then come back toward the center again until they gradually achieve a straight path.
Very asymmetrical particles will approach the center without crossing it, but very slowly. But with just the right amount of asymmetry, a particle will move directly to the centerline in the shortest possible time. ow that we understand how the asymmetry plays a role,
the researchers shine ultraviolet light through a mask onto a stream of flowing building blocks, or oligomers.
leaving little room for patients to move on their own. asically you can fall asleep in these machines,
Armies of mobile cubes could temporarily repair bridges or buildings during emergencies, or raise and reconfigure scaffolding for building projects.
and serve as a bridge between my country and the demand coming from all around the world.
and Melinda Gates Foundation has backed since with $100, 000. The product design is led by currently alumnus Elliot Avila 4
#Drive-by heat mapping In 2007, Google unleashed a fleet of cars with roof-mounted cameras to provide street-level images of roads around the world.
The startup deploys cars with thermal-imaging rooftop rigs that create heat maps of thousands of homes and buildings per hour, detecting fixable leaks in uilding envelopeswindows, doors, walls,
But the startup also works with the U s. Department of defense to help identify energy-wasting buildings on their bases.
since more than 4 million homes and buildings in cities across the United states for military, commercial,
ouldn it be easier to just throw it on a car and drive by the house??
for instance, which zip codes have homes with the most leaky attics and, among those, which owners are most likely to install attic insulation.
and air conditioning (HVAC) systems, which eat up about 50 percent of energy used in homes and buildings.
HVAC system efficiency is affected by the system itself, by household behavioral factors such as thermostat and window usage and
finally, by the building envelope. But companies measuring HVAC efficiency today, by reading meters and using other data,
have no building-envelope scans, so they can really determine if the envelope is indeed the culprit.
Essess, on the other hand, has all that information. f we see high meter usage that corresponds to really high HVAC load,
and has to be addressed by an HVAC contractor, Scaramellino says. Reality: A tough customer While Essess was Sarma third startup,
and realize there a tree in front of the building and, in the image, it hard to figure out where the tree is
and where the building is, Sarma says. That when they had to install the Lidar system,
The researchers found that a sealant they had developed previously worked much differently in cancerous colon tissue than in colon tissue inflamed with colitis. The finding suggests that for this sealant
The MIT team now hopes to move the sealant into clinical trials and has founded a company to help that process along. t something that we want to do as rapidly as possible,
The completed set of 10 3-D models of mortar, artillery, and bomb fuses have been received well in the humanitarian EOD community.
#Vanishing friction Friction is all around us, working against the motion of tires on pavement, the scrawl of a pen across paper,
much like two complementary Lego bricks. The team observed that when atoms are spaced so that each occupies a trough in the optical lattice,
Vuletic says. here force building up, and then there suddenly a catastrophic release of energy. he group continued to stretch
is that factories using the method can be scaled up by simply adding identical units. With traditional lithium-ion production
Rooms can harbor dangerous gunmen, while collapsed buildings can conceal survivors. Now Bounce Imaging, founded by an MIT alumnus, is giving officers and rescuers a safe glimpse into the unknown.
In July, the Boston-based startup will release its first line of tactical spheres, equipped with cameras and sensors,
that a mobile device uses to quickly grab those images ecause a burning building probably isn going to have Wi-fi,
Microchips Biotech will continue work on its flagship product, a birth-control microchip, backed by the Bill and Melinda Gates Foundation,
After that, the Gates Foundation took interest. t wasn just a pie-in-the-sky idea anymore ee really treating patients
The walls of the circular pipe are shown not. Initial interaction between the two streams causes the formation of two coherent swirls called vortices rotating structures in the fluids shown in the figure as gray tubes.
and the water is driven upward along the walls. In the first cross section, the interface layer between the oil
who was involved not in the research. f you take the normal conventional civil engineering or chemical engineering approach to treating it, it just won touch it.
By demonstrating a new way to change the amount of electrons that reside in a given region within a piece of graphene they have a proof-of-principle in making the fundamental building blocks of semiconductor devices using the 2-D material.
The junctions between p-and n-type semiconductors are the building blocks of electronic devices. Put together in sequence these p-n junctions form transistors which can in turn be combined into integrated circuits microchips and processors.
Their experiments also involved adding a single gate to the device which allowed for its overall carrier density to be tuned further by the application of different voltages.
They found that graphene's Hall voltage-a voltage in the perpendicular direction to the current flow-depended linearly on the magnetization of yttrium iron garnet (a phenomenon known as the anomalous Hall effect seen in magnetic materials like iron and cobalt.
In this study researchers exposed cultured laboratory mouse cells resembling the arterial wall cells to NPS of silicon dioxide
Macrophages accumulation in the arterial wall under atherogenic conditions such as high cholesterol triglycerides oxidative stress#are converted into lipids or laden foam cells
Macrophage foam cells accumulation in the arterial wall are a key cell type in the development of atherosclerosis
Nano Letters pubs. acs. org/doi/abs/10.1021/nl503817 7
#'Trojan horse'proteins are step forward for nanoparticle-based anticancer and anti-dementia therapeutic approaches Scientists at Brunel University London have found a way of targeting hard-to-reach cancers
The molecule they compressed is benzene a flat ring containing six carbon atoms and six hydrogen atoms.
One of our wildest dreams for the nanomaterials we are developing is that they could be used to make the super-strong lightweight cables that would make possible the construction of a space elevator
The researchers took a page from the paper industry using one of its processes to make a flat mesh out of light-absorbing semiconductor nanowires that
The metal on the walls of the channels adopts the shape of nanotubes; the film is dissolved then.
Their wall thickness depends both on the duration of precipitation and on the gold concentration of the original solution.
pubs. acs. org/doi/full/10.1021/nl503430 0
#Scanning tunnelling microscopy: Computer simulations sharpen insights into molecules The resolution of scanning tunnelling microscopes can be improved dramatically by attaching small molecules or atoms to their tip.
Piero Baglioni sheds light on the main benefits of these new products the advances made by his team
The first is the dispersion of calcium hydroxide nanoparticles in short chain alcohols for the consolidation of wall paintings plasters and stone.
Dispersions of nanoparticles of calcium hydroxide for the consolidation of wall paintings plasters and stone are already available to conservators worldwide under the trademark Nanorestore.
gels and microemulsions for the cleaning of wall and easel paintings have been branded as Nanorestore Gel and Nanorestore Cleaning.
so the membrane is pierced by hundreds of tiny gateways known as nuclear pores. The research, published today in Nature Nanotechnology,
Previous attempts to make tunnel junctions for reading DNA had one electrode facing another across a small gap between the electrodes
Our approach of defining the gap using a thin layer of dielectric (insulating material between the electrodes
What is more the recognition tunneling technology we have developed allows us to make a relatively large gap (of two nanometers) compared to the much smaller gaps required previously for tunnel current read-out (which were less than a single nanometer wide.
and gives DNA molecules room to pass the electrodes. Specifically when a current is passed through the nanopore as the DNA passes through it causes a spike in the current unique to each chemical base (A c T or G) within the DNA molecule.
Building materials may impact Arctic tundra More information: omicsonline. org/open-access/na#157-7439.1000235. pd
patches and sealants.""Most of these penetrating injuries, which today are the result of explosive devices,
and replacing cadmium and zinc building blocks with less hazardous materials. This eliminates 40 000 gallons of toxic solvents and 100 kilograms of toxic cadmium waste in U s. production each year.
they soon found themselves up all night in a lab in Building 13, fleshing out a business strategy.
According to the specialist at CIMAV the research is applied already in some concept testing for mechanical and thermal modification in the construction industry.
Normal room light is sufficient to keep them alive.""The breakthrough extends a stream of nanotechnology research at Rice that began with chemist Robert Hauge's 2009 invention of a"flying carpet"technique to grow very long bundles of aligned carbon nanotubes.
which lifts off and allows the new nanotubes to grow. When the nanotubes stop growing,
They're in stained glass windows. The Lycurgus Cup in The british Museum looks so magical because it's made of glass containing gold nanoparticles.
vibrating bridge-like (string) structure with typical dimensions of 1#m in length and 1nm in diameter.
The versatile chemical compound classified as a dichalcogenide is inert along its flat sides but previous studies determined the material's edges are highly efficient catalysts for hydrogen evolution reaction (HER) a process used in fuel cells to pull hydrogen from water.
Molybdenum disulfide isn't quite as flat as graphene the atom-thick form of pure carbon
Using an in-house built microscope, the research team was able to measure the intensity of the CARS light on a series of single nanodiamonds of different sizes.
Molecular electronics, which uses molecules as building blocks for the fabrication of electronic components, was seen as the ultimate solution to the miniaturization challenge.
or a tenth of a micrometer) x-ray transparent window with a thin coating of gold (20nm) on a sealed liquid sample holder the Berkeley Lab team was able to expose water molecules in the liquid to x-rays
Applied Nanoparticles, a Gateway to the Market"Our idea is the result of many projects:
"Acknowledged Project The now patented Biogàsplus technology received in 2011 a 100,000 dollar grant from the Bill & Melinda Gates Foundation.
See-through sensors open new window into the brain More information: Graphene-based carbon-layered electrode array technology for neural imaging and optogenetic applications.
"We select carbon nanotube (CNT) as the building block",Qiang told Phys. org, "CNTS are one of the most efficient and effective conductive fillers for electrode.
which sulfur was dispersed firstly well into the MWCNT network to obtain MWCNT@S building blocks and then MWCNT@S and VACNTS were assembled into macro-CNT-S films via the dispersion in ethanol followed by vacuum filtration",Zhe Yuan,
nanometer scale building blocks. A nanometer is about 100,000 times smaller than the width of a human hair.
Thus the new flat-panel device has compared smaller energy loss with other current lighting devices which can be used to make energy-efficient cathodes that with low power consumption.
The teams created two types of quantum bits or qubits the building blocks for quantum computers that each process quantum data with an accuracy above 99%.
and dimensions using DNA Nature's building block as a construction mold. The ability to mold inorganic nanoparticles out of materials such as gold and silver in precisely designed 3-D shapes is a significant breakthrough that has the potential to advance laser technology microscopy solar cells electronics environmental testing
and encode the building blocks of life have been harnessed re-purposed and re-imagined for the nanomanufacturing of inorganic materials said Don Ingber Wyss Institute founding director.
earlier the group developed the Pulsed laser deposition technique (PLD)# for this building the materials one atomic layer at a time.
#Nanosheets'structure gives them the ability to change shape from a flat surface to a scroll.
Typical absorber designs use two metal sheets with a nonmetallic insulating material in between. By using nanofabrication techniques in the lab Aydin's team found that removing the insulating layer#leaving only metallic nanostructures#caused the structure to absorb a much narrower band of light.
The wetland mesocosms we used are a much closer approximation of the natural processes constantly churning in the environment said Lee Ferguson associate professor of civil and environmental engineering at Duke.
or other animals drinking water after a potential spill or other contamination event the accumulation in sediment does pose concerns for both sediment-dwelling organisms
The nanoparticle-pollutant package could then be eaten by sediment-dwelling organisms in a sort of'Trojan horse'effect allowing the adsorbed contaminants to accumulate up the food chain.
3-D nanomagnetic logic Electrical engineers at the Technical University Munich (TUM) have demonstrated a new kind of building block for digital integrated circuits.
Gates made from field-coupled nanomagnets work in an analogous way, with the reversal of polarity representing a switch between Boolean logic states,
So-called domain walls generated there are able to flow through magnetic wires under the control of surrounding nanomagnets.
The potential to pack more gates onto a chip is especially important. Nanomagnetic logic can allow very dense packing, for several reasons.
The most basic building blocks, the individual nanomagnets, are comparable in size to individual transistors. Furthermore, where transistors require contacts and wiring,
Oleshko points out that the young rapidly emerging field of additive manufacturing which creates devices by building up component materials layer by layer often needs to analyze its creations in a noninvasive way.
and offer building blocks for computing that could be trained to mimic synaptic interfaces in the human brain n
It's a very specific window that you want to absorb in he says. We built this structure
Using a simple scalable and inexpensive method the researchers produced hybrid electrodes the building blocks of touchscreen technology from silver nanowires and graphene.
They have stretched the walls of the vesicles by aligning the molecules in the wall using the strong magnets of the High Field magnet Laboratory (HFML.
They will also experiment with different types of wall molecules. Wilson:''The current bubbles are not suitable for use in the human body
Ying's method detects genetic variations known as single-nucleotide polymorphisms (SNPS) that differ in only a single-nucleotide building block of DNA.
#Nanotubes help healing hearts keep the beat (Phys. org) Carbon nanotubes serve as bridges that allow electrical signals to pass unhindered through new pediatric heart-defect patches invented at Rice university and Texas Children's Hospital.
which pore walls hinder the transfer of electrical signals between cardiomyocytes the heart muscle's beating cells
similar to the way sound waves travel along the walls of a circular enclosure or whispering gallery: when someone whispers at one end of the domed or vaulted gallery,
Like a short piece of tape on a wall, short DNA fragments do not adhere strongly to each other,
"Our goal is to learn from the natural world and use its materials as building blocks for innovation."
"For Rozhkova, this particular building block is inspired by the function of an ancient protein known to turn light into energy.
the performance of silicon-based components will soon hit a wall.""Traditional silicon transistors have fundamental scaling limitations,
#Study sheds new light on why batteries go bad A comprehensive look at how tiny particles in a lithium ion battery electrode behave shows that rapid-charging the battery
, a piece of chalk or a brick) that contains about 99.9 percent air yet is incredibly strong
aluminum oxide), producing hollow-tube alumina structures with walls ranging in thickness from 5 to 60 nanometers and tubes from 450 to 1, 380 nanometers in diameter.
They found that the alumina structures with a wall thickness of 50 nanometers and a tube diameter of about 1 micron shattered when compressed.
However, compressing lattices with a lower ratio of wall thickness to tube diameterhere the wall thickness was only 10 nanometersroduced a very different result."
when you reduce these structures down to the point where individual walls are only 10 nanometers thick,
I have the ten dollar bill on my wall with a nice Post-it note from Nina complimenting my chemical intuition."
#Ultra-thin high-speed detector captures unprecedented range of light waves New research at the University of Maryland could lead to a generation of light detectors that can see below the surface of bodies walls and other objects.
This cements the Cambridge graphene technology cluster and shows how an effective academic-industrial partnership is key to help move graphene from the lab to the factory floor.""
""The potential of graphene is well-known, but industrial process engineering is required now to transition graphene from laboratories to industry,
While graphene has attracted wide interest as a biosensor due to its two-dimensional nature that allows excellent electrostatic control of the transistor channel by the gate
Graphene has been used among other things to design FETSEVICES that regulate the flow of electrons through a channel via a vertical electric field directed into the channel by a terminal called a gate.
In the realm of biosensing the physical gate is removed and the current in the channel is modulated by the binding between embedded receptor molecules and the charged target biomolecules to
whose surface potential (or conductivity) can be modulated by the interaction (known as conjugation) between the receptor and target molecules that results in net accumulation of charges over the gate region.
ACS Nano pubs. acs. org/doi/abs/10.1021/nn500914 i
#Atomically thin material opens door for integrated nanophotonic circuits A new combination of materials can efficiently guide electricity
Imagine a tent that, once set up, acts as a large solar system that can be used to recharge portable electronics and lights for the upcoming night of camping."
The organic photovoltaic samples used in this study were developed in house at NIST. The 100 nm thick device has a three-layer structure top semitransparent electrode, the organic photovoltaic,
and found a vast room with no walls or ceiling. It is said potentially limitless Professor Dan Li of Monash University's Department of Materials Engineering.
Professor Li likened his developments to having invented bricks and said it was time to bring in architects
The researchers discovered that two flat semiconductor materials can be connected edge-to-edge with crystalline perfection.
Researchers demonstrate ultrafast charge transfer in new family of 2-D semiconductors A new argument has just been added to the growing case for graphene being bumped off its pedestal as the next big thing in the high-tech world by the two-dimensional semiconductors
"Aerogel monoliths are like kitchen sponges but ours are made of ultra fine copper nanowires, using a fabrication process called freeze drying,
Lahti likens the UMASS Amherst team's advance in materials science to the kind of benefits the construction industry saw with prefabricated building units.
We are preassembling some basic building blocks with a few predictable characteristics which are then available to build your complex device.
Doctoral student and first author Tim Gehan says that organic solar cells made in this way can be semitransparent as well so you could replace tinted windows in a skyscraper
Nano Letters pubs. acs. org/doi/pdf/10.1021/nl502209 9
#Magnetic nanoparticles break the capacity barrier for antibody purification Monoclonal antibodies represent the largest and fastest-growing segment of international biopharma.
#New graphene framework bridges gap between traditional capacitors batteries Researchers at the California Nanosystems Institute (CNSI) at UCLA have set the stage for a watershed in mobile energy storage by using a special graphene material
"The holey grahene EC bridges the energy density gap between traditional capacitors and batteries, yet with vastly higher power density,"Duan said."
For example it might eventually be embed possible to these printed flexible optoelectronic devices into clothes packaging wall papers posters touch screens or even buildings.
Moreover organic polymers suffer from chemical instability at room conditions temperature and pressure) thus requiring extra protective layers
Nano-optoelectronics are considered the cornerstone of future chip technology, but the research faces major challenges:
Monolayer materials experience strain on atomic scales demanding different investigative expertise than that of the average demolition crew.
replacing mainframe models that once filled entire rooms. Desktop PCS have given since way to smaller and smaller laptops, smartphones and devices that most of us carry around in our pockets.
"I'm interested in this concept of synthesizing new materials that are assembled from nanoscale building blocks, "Nam said."
Single-wall nanotubes do just the opposite; when the tube flattens the bottom wall hits the inside of the top wall
which unzips from the middle out to the edges. Ozden explained that the even distribution of stress along the belly-flopping nanotube which is many times longer than it is wide breaks carbon bonds in a line nearly simultaneously.
which the sandwiching walls permanently provide that pressure, the nanoparticle array will remain at a constant state,
They are made supramolecular constructs up of building blocks called amphiphilic polymers. These nanocarriers hold the guest molecules within the confines of their water-insoluble interior and use their water-soluble exterior to travel through an aqueous environment.
and forming a bridge between the electrodes at the opposite ends of the dielectric material. They demonstrated this process with several metals,
the bridge formed in different ways. The bridge, also called a conducting filament, stays put after the electrical power is turned off in the device.
So when researchers turn the power back on the bridge is there as a smooth pathway for current to travel along.
Further, the electric field can be used to change the shape and size of the filament, or break the filament altogether,
What's the difference between the Eiffel Tower and the Washington monument? Both structures soar to impressive heights,
and each was the world's tallest building when completed. But the Washington monument is a massive stone structure,
while the Eiffel Tower achieves similar strength using a lattice of steel beams and struts that is mostly open air, gaining its strength from the geometric arrangement of those elements.
"We are talking about an imaging scale here that bridges the gap between conventional X-ray and electron tomography.
Thus far, for instance, materials such as chalk, cement, solar cells and fossils have been studied in collaboration with various research institutions n
Hygienic conditions and sterile procedures are particularly important in hospitals, kitchens and sanitary facilities, air conditioning and ventilation systems, in food preparation and in the manufacture of packaging material.
#New class of nanoparticle brings cheaper lighter solar cells outdoors Think those flat glassy solar panels on your neighbour's roof are the pinnacle of solar technology?
Virtually all flat-screen TVS and smartphones are made up of thin film transistors today; they form the basis of both LEDS and LCDS (liquid crystal displays."
"Imagine a normal window that doubles as a screen whenever you turn it on, for example."
taking advantage of the binding properties of the chemical building blocks of DNA, twist and self-assemble DNA into evermore imaginative 2-and 3-dimensional structures for medical, electronic and energy applications.
they were able to customize the chemical building blocks of the DNA sequence so that the scaffold would self-assemble.
or a home where the dry wall and siding store the electricity that runs the lights and appliances.
versus after having already caught on and spread to many areas of the house. An international team of researchers led by ICFO-Institute of Photonic Sciences in Castelldefels announce the successful development of a lab-on-a-chip platform capable of detecting protein cancer markers in the blood using the very latest advances
A solution containing acid-oxidized single-wall nanotubes graphene oxide and ethylenediamine which promotes synthesis and dopes graphene with nitrogen is pumped through a flexible narrow reinforced tube called a capillary column and heated in an oven for six hours.
and identical plastic containers filled with air water or a clay material.##The technique developed as part of a grant from the Office of Naval Research was presented yesterday at the American Society of Mechanical engineers Dynamic Systems and Control Conference o
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