made from plant-based polymers, comes into contact with blood. Vetigel cofounder, Joe Landolina, started working on the project
which was to use a polymer to seal up a wound very quickly. In the beginning I wasn expecting that the polymer itself would be able to quickly stop bleeds.
We realized that if we put it onto a wound something really remarkable would happenwhich is that it would actually change shape,
#A Tunable Liquid Metal Antennas for Tuning in to Anything Tuning in is getting to be complicated a thing.
a liquid metal antenna that can continuously adapt to different wavelengths by changing its length inside a capillary.
Instead of external pumps, the NC State researchers used a voltage to control the amount of liquid metal allowed to flow into a capillary.
Michael Dickey, a chemical engineer at NC State, discovered that a voltage across the interface of a liquid metal,
such as an alloy of gallium and indium, combined with an electrolyte could cause the liquid metal to spread
or to contract, depending on whether the voltage is positive or negative. A positive voltage causes the formation of an oxide layer on the metal,
lowering the surface tension and allowing it to flow easily, while a negative voltage removes this oxide layer,
causing the metal to contract, resisting flow. The researchers used the electrochemical control of the fluidity of the liquid metal to coax it into and out of a capillary.
Their setup resembled a fever thermometer, where the length of the mercury column in a capillary is controlled by the thermal expansion of the mercury in a reservoir connected to the capillary.
But instead of temperature the engineers used voltage. Tuning the voltage allowed them to control the length of the metal column in the capillary.
For centimeter-wavelengths, liquid metal antennas would remain separate elements in the circuitry, but for millimeter waves they could be integrated on microfluidic chips,
says Adams. However even larger liquid metal antennas could be useful in defense communications and radar systems that use bands ranging from a few megahertz to tens of gigahertz,
In the lab, ionic liquid was applied to the cellulose fibers, causing the biopolymer to swell, and the individual polymer chains to start separating.
At this point instead of allowing the material to completely dissolve, the ionic liquid was mixed with carbon particles,
and then attached them to gold metal electrodes of differing sizes. The results were impressive.
they used much smaller fibers. f you chop down the wood into nanosize fibers, you find that the fibers are single crystals.
If you put this material together to make a substrate, it becomes very strongtronger than the paper we use,
placing the heating element inside a metal box that reflects back most of the infrared energy,
While polymer coatings have been used to achieve more or less this same effect, the polymers degrade rapidly. Even worse, the polymer coatings are sometimes so thick that they actually pose a bigger problem to the heat transfer than the films they are supposed to be combating.
After testing the material in an environment of pure water vapor at 100 degrees Celsius the researcher found that the graphene coating offered a fourfold improvement in heat transfer compared to bare metal.
The MIT researchers have calculated also that these numbers could be improved to a five to seven times improvement by optimizing temperature differences in the system.
a polymer coating solution started to degrade in the environment within three hours and completely failed within 12.
and graphene-based on-chip optical communications. n work published in the journal Nature Nanotechnology researchers suspended graphene above a silicon substrate by attaching it to two metal electrodes
The grids linked to two metal edestalsthat jutted out of Sorto skull. Within one month of surgery, Sorto was ready to get to work.
it a hoto batterywhere the anode itself is made of titanium nitride and ambient light. Under artificial light, this prototype battery has a capacity of 77.8 mah/g. Itl quite happily power a small fan or LED light for about 30 seconds,
Instead of a periodic structure of metal, which absorbs light, they use two dielectric materials, a Teflon substrate studded with cylinders made of a ceramic.
The ceramic has a high refractive index, and the Teflon has a low refractive index. When combined, they create a metamaterial, capable of bending light in unusual ways.
The team also varied the height of the cylinders by a small amount, in a pattern devised by their computer.
The different heights change the phase of the light bouncing off different parts of the cloak to mimic the phase it would have
Reeds naturally absorb silica from the soil, which accumulates in sheetlike structures around micro-compartments in the plants.
The only exotic component is the carbon nanotube aerogel sheet used for the fiber sheath
#The First White Laser Scientists and engineers at Arizona State university, in Tempe, have created the first lasers that can shine light over the full spectrum of visible colors.
Growing such mismatched crystals right next to each other often results in fatal defects throughout each of these materials.
But now scientists say theye overcome that problem The heart of the new device is a sheet only nanometers thick made of a semiconducting alloy of zinc, cadmium, sulfur, and selenium.
The researchers grew this alloy in stages, carefully varying the temperature and other growth conditions over time.
they ensured that these different crystals could coexist. The scientists can individually target each segment of the nanosheet with a light pulse.
#Spintronic Devices Possible Without Magnetic material Spintronics, which has offered a promising alternative to electronics, may have just been given a boost that moves it from mere promise to likely future backbone of computing.
A young researcher at Argonne National Laboratory has stumbled upon the amazing discovery that a magnetic material may not be required
said Anand Bhattacharya, a physicist in Argonne's Materials science Division and the project's principal investigator,
You can use either a paramagnetic metal or a paramagnetic insulator to do it now. c
These small plastic spinning pieces cost almost nothing and keep hundreds or thousands of dollars of advanced technology from cooking itself.
Finally, you can use it with private cloud infrastructure services including virtual machines, bare metal and Openstack.
This is actually an interchangeable piece of plastic that determines the color nkused for the digital notes,
and crafty composition hin layers of plastic topped and tailed with conductive film so there no mechanical gullies to harvest the crumbs of your lunch.
By pairing a piece of plastic with an inexpensive smartphone ophthalmologists are able to address eye care problems anywhere in the world.
It mounted on a thick steel post, and equipped with a tracking mechanism that continuously points it at the sun. The slab is made of over 100,000 small lenses
a professor of chemistry and materials science and engineering at the University of Illinois. Semprius has raised $45 million from investors including Siemens,
Right now Roost has a working prototype in a plastic box about the size of an external hard drive;
and plastic but they were stiff and painful. Yet Herr found that he could still excel in the vertical world of rock climbing.
and plastic molds of human feet. At the center of the space is raised a platform with a treadmill and a set of hip-high parallel bars.
#Shape-Shifting Carbon Composites Could Save Fuel Airbus and researchers at MIT are developing shape-shifting materials that could make aircraft simpler and lighter potentially saving fuel.
Made of carbon fiber composites the materials shift between two or more shapes in response to changes in heat air pressure or other environmental factors.
First most shape-shifting materials don t use carbon composites which are common in aircraft because of their light weight and high strength.
And though others have worked on carbon composites that can respond to a specific stimulus such as heat Cros says in the new approach the carbon composites can be paired with a variety of shape-shifting materials that respond to different environmental triggers.
Another advantage to the new approach is that it doesn t require the electrical connections some other shape-changing composites need.
Skylar Tibbits director of MIT s Self-Assembly Laboratory begins with novel carbon fiber composites developed by the startup Carbitex based in Kennewick Washington.
Most carbon fiber composites are rigid: the glue that holds the fibers together known as matrix doesn t allow them to bend.
Some result in carbon composites that are floppy like a cotton sheet. Others are springy like a sheet of metal.
As they change they force the carbon composite on which they re deposited to bend
He and his colleagues are developing design software that simulates the way different patterns of these materials printed onto different kinds of composite materials will behave under different conditions.
Stephen Forrest, a professor of materials science and engineering at the University of Michigan, published work on a more efficient,
This includes changing the refractive index, the electrical conductivity, the magnetic susceptibility and so on. What these guys are proposing is an entirely new form of manufacturing based on clever chemistry and the powerful technique of self-assembly.
or even reduce the glare during a snowfall by distributing light between snowflakes. Improving the ability to drive in the dark
The sensors developed at another lab at Harvard include embedded channels filled with a conductive liquid that changes in resistivity as the silicone is stretched.
Some are waxy some like salt crystals. He points to a gap in the rows of vials where a vial is conspicuously missing.
and joints they could make ceramics metals and other materials that can recover after being crushed like a sponge.
Ceramics for example are strong but also heavy so they can t be used as structural materials where weight is critical##for example in the bodies of cars.
And when ceramics fail they tend to fail catastrophically shattering like glass. But at the nanoscale the same rules do not apply.
In this size range the structural and mechanical properties of ceramics become less tied to properties such as weight
For ceramics smaller is tougher says Greer who was named one of MIT Technology Review s 35 Innovators Under 35 in 2008 for her work on nanoscale mechanics.
Greer worked with the company to characterize the material and later chose to take on the greater challenge of making ceramics with similar properties.
First they use this method to create the desired structure a lattice out of a polymer.
The polymer lattice is coated then with a ceramic such as alumina. Oxygen plasma etches out the polymer leaving behind a lattice of hollow ceramic tubes.
Greer s lab showed that by changing the thickness of the tube walls it s possible to control how the material fails.
When the walls are thick the ceramic shatters under pressure as expected. But trusses with thinner walls just 10 nanometers thick buckle
The new materials might be particularly interesting for use in batteries notes Nicholas Fang a mechanical engineer at MIT who is also working on nanostructured ceramics.
They first laminate a sheet of plastic to glass and then deposit the materials for the pixels and the electronics on top of both.
and afterwards the plastic, together with display and electronic components, is lifted off the glass. Manufacturers have known how to do this for years.
While the lithium-polymer batteries used in smartphones today are somewhat flexible they can survive being bent many times.
The design uses new materials from Light Polymers, a startup based in South San francisco. In an LCD,
Technology presented by Light Polymers at the 2014 Emerging Display Technologies conference in San jose this week could allow switching in less than 60 microseconds.
Marc Mcconnaughey, CEO of Light Polymers, says the company materials are being evaluated by flat-panel display manufacturers.
Chernev and co aim to start by analysing the resonances of each of the monomer
The signatures from these should provide a kind of alphabet from which to work out the resonances of more complex polymers.
It changes its reflectivity in response to heat from concentrated sunlight in a way that makes it possible capture light coming in at different angles throughout the day.
and the large amount of steel and concrete needed to keep the apparatus steady makes the approach expensive.
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.
a professor of materials science at Rice university who led the work. Several companies are making progress towards commercializing RRAM.
causing the metal to migrate into the holes, forming an electrical connection between the electrodes.
Imprint Energy, of Alameda, California, has been testing its ultrathin zinc-polymer batteries in wrist-worn devices
Ho developed a solid polymer electrolyte that avoids this problem, and also provides greater stability,
#A Cleaner, Cheaper Way to Make Metals In lab space across from a yoga studio in an office park in Natick, Massachusetts,
Adam Powell holds up a brilliant white ceramic tube that he says is the key to making the production of many widely used metals significantly cheaper
While Infinium approach can be used to produce other metals, including magnesium and aluminum, the company is starting with rare earths
and high costs and environmental challenges have prevented companies from processing rare earth ore to make metals domestically.
transforming partially processed oresetal oxidesnto metals. This can be done by immersing the oxides in a bath of molten salt and running electricity through the mixture.
and separating rare earth oxides from other materials in the ore (other new processes are being developed to address those issuesee he Rare-Earth Crisis. But for metals such as aluminum and magnesium,
Making these metals much cheaper could, for one thing, transform car-making. Parts made of these metals weigh far less than the steel parts ordinarily used in cars,
while being just as strong. The weight savings could reduce fuel consumption by 10 percent, according to an auto industry consortium.
If the ceramic doesn last the company may not have a cost advantage. Finding an alternative to carbon has long been the reamof the metals industry,
says Donald Sadoway, a professor of materials science at MIT who is not involved with the company. believe Infinium technology is sound.
It real, he says. Whether the company succeeds s all about the economics, he says. o one cares about the flow chart for the process.
If it produces a good metal at a lower cost, people will be interested. l
#Military Funds Brain-Computer Interfaces to Control Feelings Researcher Jose Carmena has worked for years training macaque monkeys to move computer cursors and robotic limbs with their minds.
#Microrobots, Working Together, Build with Metal, Glass, and Electronics Someone glancing through the door of Annjoe Wong-Foy lab at SRI International might think his equipment is infested by ants.
and then uses surface tension to pick up the rod. A third robot visits a glue station,
teixobactin has two non-protein cell wall targetsighly conserved portions of two precursor polymers of peptidoglycan and cell wall teichoic acid.
One benefit of the new wood-based aerogel material is that it can be used for three-dimensional structures."
The finished aerogel can then be treated with electronic properties. In terms of surface area Hamedi compares the material to a pair of human lungs,
Hamedi said the aerogel batteries could be used in electric car bodies, as well as in clothing, providing the garment has a lining.
One benefit of the new wood-based aerogel material is that it can be used for three-dimensional structures."
The finished aerogel can then be treated with electronic properties. In terms of surface area Hamedi compares the material to a pair of human lungs,
Hamedi said the aerogel batteries could be used in electric car bodies, as well as in clothing, providing the garment has a lining g
"His team specialises in modifying carbon fibre composite materials, the strong but lightweight substances used increasingly widely in the manufacture of everything from commercial aircraft wings to sports racquets and high-performance bicycles.
"The Bristol team's advances could be applied to all kinds of carbon fibre composite materials-meaning that self-healing golf clubs, tennis racquets,
when researchers at the University of Illinois in the US created a plastic capable of repairing itself
Last year, the same team created a polymer, inspired by the human blood-clotting system, which patched holes up to 3cm wide.
How the technology is being used Professor Wass's team at the University of Bristol has been focusing on the creation of self-healing versions of carbon fibre composite materials
*The Airbus a380 passenger jet has a carbon fibre reinforced plastic fuselage for a lower fuel consumption. The researchers claim the new technology would allow wings to fix themselves in mid-flight,
*Sports equipment such as tennis racquets, fishing rods and golf clubs are made often from carbon fibre composites for the same reasons.
"His team specialises in modifying carbon fibre composite materials, the strong but lightweight substances used increasingly widely in the manufacture of everything from commercial aircraft wings to sports racquets and high-performance bicycles.
"The Bristol team's advances could be applied to all kinds of carbon fibre composite materials-meaning that self-healing golf clubs, tennis racquets,
when researchers at the University of Illinois in the US created a plastic capable of repairing itself
Last year, the same team created a polymer, inspired by the human blood-clotting system, which patched holes up to 3cm wide.
How the technology is being used Professor Wass's team at the University of Bristol has been focusing on the creation of self-healing versions of carbon fibre composite materials
*The Airbus a380 passenger jet has a carbon fibre reinforced plastic fuselage for a lower fuel consumption. The researchers claim the new technology would allow wings to fix themselves in mid-flight,
*Sports equipment such as tennis racquets, fishing rods and golf clubs are made often from carbon fibre composites for the same reasons s
#Copper and its alloys destroy'stomach flu'virus Metal surfaces containing copper can destroy human norovirus, one of the causes of gastroenteritis or'stomach flu,
Copper vessels or utensils made from brass and bronze and even doorknobs or handrails with such surfaces could help kill off the virus
the authors obtained five different copper alloys, and stainless steel as a control surface, cutting these into coupon-sized pieces."
"We deposited either human fecal samples containing infectious virus, or virus-like particles onto each coupon,
whereas the virus was very stable on stainless steel surfaces.""The copper acted quickly. Ten minutes'exposure was sufficient to virtually abolish the receptor-binding ability of human norovirus virus-like particles,
an effect that was observed not on the stainless steel surfaces. Specifically, the copper surfaces destroyed both the virus'genome,
Many ancient societies used utensils made of copper or its alloys for food and water.
In modern times, copper use in kitchens and food keeping has fallen as stainless steel or even synthetic materials have become available e
"Printing an intricate, ornate metal bridge for a special location to show what our robots and software engineers,
In this technique, small increments of molten metal are welded to the existing structure, creating lines of steel
and the same is used to print the bridge out of steel. By printing multiple lines, the printer will be able to create a strong,
complex structure that spans the canal-printing its own supports along the way so that it can operate autonomously.
"Printing an intricate, ornate metal bridge for a special location to show what our robots and software engineers,
In this technique, small increments of molten metal are welded to the existing structure, creating lines of steel
and the same is used to print the bridge out of steel. By printing multiple lines, the printer will be able to create a strong,
complex structure that spans the canal-printing its own supports along the way so that it can operate autonomously.
The Columbia scientists, working with researchers in South korea, attached small strips of graphene to microscopic metal electrodes which passed an electric current through the suspended strips causing them to heat up and bright
The Columbia scientists, working with researchers in South korea, attached small strips of graphene to microscopic metal electrodes which passed an electric current through the suspended strips causing them to heat up and bright
The research team has developed a nanocatalyst filter by evenly coating a manganese oxide-based nanocatalyst powder onto a ceramic-based filter media.
The research team has developed a nanocatalyst filter by evenly coating a manganese oxide-based nanocatalyst powder onto a ceramic-based filter media.
The research team has developed a nanocatalyst filter by evenly coating a manganese oxide-based nanocatalyst powder onto a ceramic-based filter media.
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.
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.
Each module was printed 3d with translucent plastic to allow the structure to filter sunlight during the day
and used it to desorb material from a thin film of organic molecular glass or polyphthalamide polymer (PPA).
If the printed plastic electronics truly do make an impact, it will likely eliminate large semiconductor companies due to smaller workshops,
Through their research, the team found that the resistivity of their thermoplastic material is in the range of 0. 5-1. 0 Wcm-or roughly 1, 000 times more conductive than most existing commercially available plastic filaments
and machined steel that are literally capable of lasting a lifetime. The printer can be designed to any desired build space of up to 6x 6x 4 For those looking for more customized options
#Bucktown Polymers water soluble Rinse Out 3d prinintg Resin (ROR) could replace lost wax casting Jun 1,
More recently, researchers at Bucktown Polymers have developed a new type of 3d printing material that cures rapidly
Illinois and produces a range of products including adhesives, coatings, inks, resins, composites, photopolymers and other materials for manufacturing-found that the materials have unique uses in additive manufacturing
Existing polymer or wax-based offerings have up to a 12-hour long burnout process whereas the ROR is capable of being rinsed with water in a matter of minutes.
it is also eliminating the problem of unintended patterns that can be created from other materials due to polymer expansions or leftover ash and residue.
Those interested in finding out more about Rinse Out Resin can head over to Bucktown Polymers.
Involving special bio-inks made from biocompatible polymers and cells, these could be used for 3d printing just about everything in the human body, from cartilage, to bone structures and theoretically even entire new organs.
and another polymer like material together slowly, but this kit can simply be mixed and subsequently 3d printed.
Hydrogels, which are defined by water molecules that are encased in rubbery polymer networks that provide shape
It like steel-reinforced concrete. n addition to being able to be synthesized with living cells, the hydrogels have also proven to have incredible elastic properties;
added David Mooney, a professor of bioengineering at Harvard university. his builds off earlier work using other polymer systems,
but the demonstration that one can achieve similar mechanical performance with a common biomedical polymer is a substantial advance iit is also quite exciting that these new tough gels can be used for 3d printing,
#Formfutura unveils Easywood Olive and Ebony, two new wood-like 3d printer filaments Jun 9, 2015 By Alecwith an internet full of 3d printable designs,
But in reality, most of us continue to limit ourselves to regular plastic designs made in either PLA or ABS filaments.
feel and smell like real wood. Because of its low shrinkage factor, Easywood#is nearly warp-free
It a unique mixture of 40%grinded wood particles in combination with the modified and proven easy-to-print binding polymers used for our Easyfil#filaments.
This will quickly create the beautiful wood-nerve structure in either olive green or dark brown of course, that we are all looking for.
as you would see on actual wood. This works best on the roughest surfaces, so in this case layers might actually be your friend.
According to the company, this implementation s designed for a quick and smooth assimilation within existing High Volume Manufacturing (HVM) production lines-using the same metal pastes
the structure of a silicone wafer changed by dramatically increasing the amount of silver printed lines
They are made of a metal alloy and are produced using 3d printers.""notes the company.""The nodes, combined with carbon fiber tubes are the key components in building a car chassis. It took less than 30 minutes to assemble the chassis by hand.
a UV sensitive polymer. he material is nonflammable, and has good structural strength similar to ABS materials commonly used in 3d printing.
flexible, and extremely durable (about a hundred times stronger than steel), it is also a very efficient conductor of heat
What's more, the rest of the ink consists of a biocompatible biodegradable polyester (PLG) that,
who is the assistant professor of materials science and engineering at the Mccormick School of engineering, and her postdoc Adam Jakus, the team are
But it been a mostly polymer composite with graphene making up less than 20 percent of the volume
The presence of the other solvents and the interaction with the specific polymer binder chosen also has a significant contribution to its resulting flexibility and properties.
the elasticity of the material can be tuned by changing the portions of graphene and polymers.
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