Sentences with phrase «coated nanotubes»

But the sensors aren't just useful for explosives — the researchers found that the coated nanotubes can also detect two pesticides that contain nitro - aromatic compounds.

The researchers coated the nanotubes in successive layers of alternately charged polymer solutions in order to create distinct, binding layers around each nanotube.

Bond and her collaborators are using metal - coated nanotubes bunched together like a jungle canopy to amplify the signals of both the incident and Raman scattered light by exciting local electron plasmons.

The researchers coat the nanotubes with a fuel called trinitramine and ignite it with a laser or an electric spark.

To solve the problem, chemists had been coating the nanotubes with various substances, but doing so often altered the tubes» physical and electrical properties, thus limiting their utility.

By coating a nanotube in nitrocellulose fuel and igniting one end, we set off a combustion wave along it and learned that a nanotube is an excellent conductor of heat from burning fuel.

Not exact matches

Nanobionic Leaf: DNA - coated carbon nanotubes (top) incorporated inside chloroplasts in the leaves of living plants (middle) boost plant photosynthesis.

Now, researchers at the Massachusetts Institute of Technology have discovered that highly charged single - walled carbon nanotubes (CNTs) coated with DNA and chitosan (a biomolecule derived from shrimp and other crustacean shells) are able to spontaneously penetrate into chloroplasts.

Vantablack consists of a dense forest of carbon nanotubes suspended in plasma that's coated on materials like aluminum (magnified above) for easy application.

The group twisted carbon nanotube fibers into a yarn, then coated one piece of yarn with zinc to form an anode, and another with magnesium oxide to form a cathode.

By coating the wings of a Blue Morpho butterfly with carbon nanotubes that magnify the effect, researchers there made an insect into a sensor that changes color when its temperature changes a mere 1 / 25th of a degree.

The team coated flexible strands of silicon rubber with a mix of long chains of carbon atoms, called carbon nanotubes, and tiny bunches of silver molecules, called silver nanoparticles.

Their real breakthrough, however, is discovering the use of an intermediate dielectric coating (hafnium) to block the quenching of the free electrons in the metal by the CNTs, allowing the nanotubes to function uninhibited.

The hafnium coating enables the bunching of gold nanotubes that creates a thick canopy full of sensitive spots for detection.

The joint research team, led by LLNL Engineer Tiziana Bond and ETH Scientist Hyung Gyu Park, are using spaghetti - like, gold - hafnium - coated carbon nanotubes (CNT) to amplify the detection capabilities in surface - enhanced Raman spectroscopy (SERS).

Such a gap allowed solutions to flow over, then down into the forest, coating each individual nanotube.

Wardle says the combination of carbon nanotubes and multilayer coatings may help finely tune microfluidic devices to capture extremely small and rare particles, such as certain viruses and proteins.

The nanotubes» polymer coating may also be chemically manipulated to bind specific bioparticles flowing through the forest.

In the absence of a gap, solutions simply flowed around the forest, coating only the outer nanotubes.

The heating concept is based on a film that is coated with conductive carbon nanotubes (CNTs).

Wardle says that the nanotube array is extremely versatile, as the carbon nanotubes may be manipulated mechanically, electrically, and optically, while the polymer coatings may be chemically altered to capture a wide range of particles.

To do so, they flowed each solution through the channel and found they were able to create a more uniform coating with a gap between the top of the nanotube forest and the roof of the channel.

In the as - prepared electroactive threads, the carbon nanotube sheets coated the fiber core with a thickness of less than half a micron.

«You can think of each nanotube in the forest as being concentrically coated with different layers of polymer,» says Brian Wardle, professor of aeronautics and astronautics at MIT.

«We found substantial performance improvements with the fluoropolymer coated single - walled carbon nanotube both in device level and circuit level,» Dodabalapur noted.

In the paper, researchers examined the effect of a fluoropolymer coating called PVDF - TrFE on single - walled carbon nanotube (SWCNT) transistors and ring oscillator circuits, and demonstrated that these coatings can substantially improve the performance of single - walled carbon nanotube devices.

Going a step further, the team added a rubber coating and a second nanotube sheath to the original wire to create an electrically activated «muscle» that contracts when connected to a battery.

Robertson and his colleagues grew carbon nanotubes on a conductive copper surface that was coated with co-catalysts cobalt and molybdenum.

The team's second artificial muscle is made from sheets of carbon nanotubes, coated in a catalyst.

If they found a way to coat with diamond the nanothreads that the CSIRO specialists make from nanotubes, these diamond - coated nanothreads could be used to manufacture ultra-thin saws capable of cutting through silicon wafers for instance.

But the IWM scientist Manuel Mee found a solution for protecting the fine carbon nanotubes, which grow like forests on a substrate: «During our first experiments, fused silica from the reaction chamber accidentally came into contact with the coating plasma.

The scientists discovered a technology that produced a sulfur - carbon nanotube substance that created more conductivity on one electrode, and a nanomaterial coating to create stability for the other.

Dai's team coats carbon nanotubes — hollow cylinders of carbon only a few atoms wide — in folic acid, a molecule that binds with certain types of cancers, including breast cancer.

When the material dried out, the silk was coated with a thin layer of nanotubes.

Yet, most of these catalysts stop working after just a minute of operation as carbon atoms cover the catalyst particles with an amorphous coating that prevents nanotubes from taking shape.

SPIDER silk darkened with a coating of carbon nanotubes can tell if your heart just skipped a beat.

The team coated a silicon wafer with a layer of upright nanotubes, spaced 100 nanometres apart through a process called chemical vapour deposition.

They discovered that coating a work surface with upright carbon nanotubes allows microscopic components to be moved across the surface more easily.

Because osteoblasts readily adhere to this novel surface, dental implants coated with TiO2 nanotubes could significantly improve healing following dental implant surgery.

She has already demonstrated that bone cells grow more vigorously and adhere better to titanium coated with TiO2 nanotubes than to conventional titanium surfaces.

To achieve this result, Yuan applied various coatings, integrated nanotubes, and added specialized nanostructures to a typical solar cell.

Scientists from MIT have discovered that by coating carbon nanotubes in bee venom, they can create ultra-sensitive detectors for explosives such as TNT, as well as at least two different types of pesticides.

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