This discovery challenges a previously accepted view that metal carbides are needed to
create nanotubes, through a process called chemical vapour deposition.
They've also
created nanotubes that can detect chemicals including TNT and the nerve gas sarin.
Not exact matches
The Sloan Kettering group was having trouble delivering
nanotubes into cells to
create cancer diagnostics.
If these
nanotubes could be customized to distinguish other gases, many of them could be placed on a single device,
creating a «nose on a chip» that could ferret out pollutants or analyze the atmospheres of other planets.
Although the idea of
creating stronger, better - adhering cartilage sounds good, placing permanent particles such as carbon
nanotubes inside the joint may introduce other problems, says Freddie Fu, chairman of the Department of Orthopaedic Surgery at the University of Pittsburgh's School of Medicine and its Medical Center.
Using a method called immersed surface accumulation 3 - D printing (ISA - 3D printing), the research team successfully
created the egg - beater microstructure in samples made from plastic and carbon
nanotubes.
The computer also represents a victory for much - hyped carbon
nanotube transistors,
created in 1998 by Cees Dekker and his group at Delft University of Technology in the Netherlands.
Scientists funded by the NSF are working to synthesize, characterize and functionalize boron nitride
nanotubes and boron nitride nanoribbons to
create new electronic and optical materials with tunable properties.
To investigate the storage capacity of carbon
nanotubes, Otto Zhou and colleagues at the University of North Carolina, Chapel Hill, first
created bundles of the single - walled straws.
Kotov is
creating fabrics partially made from conductive carbon
nanotubes (picture microscopic ziti made of rolled carbon atoms), which he expects could lead to garments that are essentially themselves electronic devices.
The hafnium coating enables the bunching of gold
nanotubes that
creates a thick canopy full of sensitive spots for detection.
They chose a rod shape because they thought that would integrate well with the nanowires and curvatures of
nanotubes, wrapping around them to
create a robust electrode.The unusually long and very flexible strands of the nanomaterials are crucial to the superior features of the electrodes.
Furthermore, calculations have shown that it is possible to
create a combined device, where inside a two - layer carbon
nanotube there will be magnetic fullerenes.
With this method, they
created a three - dimensional array of permeable carbon
nanotubes within a microfluidic device, through which fluid can flow.
The researchers coated the
nanotubes in successive layers of alternately charged polymer solutions in order to
create distinct, binding layers around each
nanotube.
Researchers with Berkeley Lab and the University of California (UC) Berkeley have
created tactile sensors from composite films of carbon
nanotubes and silver nanoparticles similar to the highly sensitive whiskers of cats and rats.
Researchers have been trying to solve this major problem by
creating carbon
nanotubes — or CNT — transistors.
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.
The single - walled carbon
nanotubes in new fibers
created at Rice line up like a fistful of uncooked spaghetti through a process designed by chemist Angel Martí and his colleagues.
Engineers at UC Berkeley and Stanford claim they have
created the first working silicon circuit that uses carbon
nanotubes.
In Friedman's spintronic circuit design, electrons moving through carbon
nanotubes — essentially tiny wires composed of carbon —
create a magnetic field that affects the flow of current in a nearby graphene nanoribbon, providing cascaded logic gates that are not physically connected.
The resulting «designer
nanotubes,» she adds, promise to be far cheaper to produce on a large scale than those
created with so - called DNA origami, another innovative technique for using DNA as a nanoscale construction material.
They then attached strips of gold to both ends of each
nanotube,
creating a transistor, and linked up to three such devices in various ways to make circuits that would execute simple logical functions: flipping a signal from off to on or vice versa, turning two off signals into an on, storing a unit of information or
creating an oscillating signal.
«Just like a Tetris game, where we manipulate the game pieces with the aim of
creating a horizontal line of several blocks, we can now build long
nanotubes block by block,» said Amani Hariri, a PhD student in McGill's Department of Chemistry and lead author of the study.
While some engineers are dragging solar energy into the big time, others are getting small: They have hit upon a novel phenomenon that
creates an electric current in
nanotubes, hollow microscopic structures made of carbon atoms.
By mixing carbon
nanotubes into chewed gum, researchers
created a bendable, stretchable sensor that can track how fast a person breathes when worn over the neck.
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.
Genetic tweaks enabled the virus to bind tightly to the carbon
nanotube,
creating a high - powered battery, as she described in a May issue of Science.
Then in 1991, while studying the unique atomic structures called buckyballs, which are
created by electrically charging carbon soot, Sumio Iijima of Meijo University in Nagoya, Japan, discovered the first
nanotubes — fantastically strong cylindrical carbon - atom constructions less than two nanometers wide and of varying lengths.
Space Elevator, Going Up Carbon
nanotubes are renowned for their superior strength, and in March researchers from the University of Texas manipulated that property to
create a material that is simultaneously strong, stretchy, and nearly as light as air.
The three - dimensional structures were
created from a powdered nickel catalyst, surfactant - wrapped multiwall
nanotubes and sugar as a carbon source.
Among the new components developed by the researchers are a copper - silver nanocoral cathode, which reduces the carbon dioxide to hydrocarbons and oxygenates, and an iridium oxide
nanotube anode, which oxidizes the water and
creates oxygen.
If we can
create an abundance of cheap carbon
nanotube - impregnated composite materials — currently quite expensive — automobile frames could become lighter than aluminum, stronger than steel, and easier to mold into compound curves.
The researchers customized the anode by growing the iridium oxide
nanotubes on a zinc oxide surface to
create a more uniform surface area to better support chemical reactions.
11 And in a University of Southern California lab,
nanotubes have been used to
create synthetic neurons (pdf).
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.
Looking to solve this problem on its manned and unmanned aircraft, the U.S. Air Force will by the end of the year to kick off an 18 - month study of the use of carbon
nanotube sheets to
create a shielding layer on the surfaces of lightweight composites.
«Microcombing»
creates stronger, more conductive carbon
nanotube films.»
Liu et al.
created superelastic conducting fibers by depositing carbon
nanotube sheets onto a prestretched rubber core (see the Perspective by Ghosh).
Back in February, researchers from Rice University
created 3D graphene foam supported by carbon
nanotubes, but it was difficult to make.
Scientists from MIT have successfully
created a «bionic plant» using
nanotubes.
This result, which shows the extent to which the integration between nerve cells and these synthetic structures is stable and efficient, highlights the great potentialities of carbon
nanotubes as innovative materials capable of facilitating neuronal regeneration or in order to
create a kind of artificial bridge between groups of neurons whose connection has been interrupted.
Home > Press > Plasmons triggered in
nanotube quantum wells: Rice, Tokyo Metropolitan scientists
create platform for unique near - infrared devices
We have recently made fundamental breakthroughs in solubilizing carbon
nanotubes and have developed solvent systems that will truely dissolve single wall
nanotubes and graphene and
create thermodynamically stable solutions.
July 24, 2017 - Just as members of a marching band align themselves for a performance, carbon
nanotubes create a similar configuration.
Ramya Tunuguntla, an LLNL postdoctoral researcher and the first author on the paper, said that despite significant efforts in carbon
nanotube transport studies, these predictions proved to be hard to validate, mainly because of the difficulties in
creating sub-1-nm diameter CNT pores.
We have seen researchers look to counter this problem by using different electrolytes, reinforcing batteries with Kevlar and
creating forests of 3D
nanotubes that stop dendrites from forming.
Just as members of a marching band align themselves for a performance, carbon
nanotubes create a similar configuration.
Researchers at the University of Texas at Arlington
created this new material by synthesizing copper sulfide nanoparticles with single - walled carbon
nanotubes.
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.