Sentences with phrase «nanotubes so»

He polarised a powder of carbon nanotubes so that the tubes would stick to the naturally charged silk, then mixed the materials with a few drops of water and pressed them between two sheets of Teflon.

This one packs an interconnected network of graphene and carbon nanotubes so tightly that it stores energy comparable to some thin - film lithium batteries — an area where batteries have traditionally held a large advantage.

Not exact matches

Rafiee is developing a way to line a hydrogen vehicle's fuel tank with a one - atom - thick layer of graphene, essentially a sheet of single - walled carbon nanotubes that have been opened up and laid flat, so that the tank can better store and release hydrogen.

As expected, cartilage cells grew around the nanotubes, which are so strong that scientists now use them to reinforce plastic.

So Cola, NSF Graduate Research Fellow Erik Anderson and Research Engineer Thomas Bougher replaced the calcium with aluminum and tried a variety of oxide materials on the carbon nanotubes before settling on a bilayer material composed of alumina (Al2O3) and hafnium dioxide (HfO2).

So Banhart used a kind of substitute soldercreated on the spotto link two crossed nanotubes: he focused a narrow beam of electrons from a scanning electron microscope at the point where the tubes met, thereby converting contaminants on their surfaces into bridges made from graphite - like carbon that can conduct electricity.

So Shao - Horn and her colleagues decorated the outer surfaces of their nanotubes with two different types of oxygen - containing chemical groups that gave them opposite charges.

This so - called carbon nanotube could be likened to an unimaginably long garden hose: a hollow tube just a nanometer or so in diameter but perhaps millions of times as long as it is wide.

The best idea so far has been carbon nanotubes — microscopic structures that can pack away large quantities of hydrogen at normal pressure within a relatively small space.

The hitch, so far, has been that the most promising tubes — single - walled nanotubes (SWNTs), consisting of one layer of carbon atoms arrayed like rolled - up chicken wire — can be made only by the thimbleful and can cost up to $ 2000 a gram.

In 1999, a group led by Mathieu Kociak and Helene Bouchiat at the University of Paris, South, in Orsay, France, reported in Science (28 May 1999, p. 1508) that ropes of 100 or so nanotubes could carry supercurrent between two superconducting electrodes.

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.

Another advantage of ice lithography is that ice is transparent, so researchers could see where to remove sections of the mask so that the electrodes ended up precisely aligned with the nanotubes below.

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.

To do so, they engineered a collection of 20 DNA double helices to form a nanotube big enough (15 to 20 nanometers — just over one - billionth of a meter — in diameter) to house the fibrils.

Additionally, the nanotubes consist only of carbon, so a thermopower battery would not contain any toxic heavy metals.

While he has mostly learned what does not work, he filed for a patent on a so - called nanotube detangler in May, and a second patent for a CNT growth technology that he keeps under wraps.

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.

But with billions of nanotubes on a chip, even a tiny degree of misaligned tubes could cause errors, so that problem remained.

Just like a gecko lifting its foot away from the wall, researchers pulled the glue pad away at a 90 - degree angle so that only the tips of the branching nanotube bits were touching the surface, and it easily came away.

The subsequent nanotube growth exhibited the highest mass density reported so far.

A cable made of carbon nanotubes, which have the highest known ratio of tensile strength to weight, would have to be so thick at the far end that it would collapse under gravity.

In normal temperature and humidity, the molecule would break down immediately, so it is unlikely to have any practical applications, such as producing new types of carbon nanotubes.

Still, researchers are just beginning to understand and exploit nanotubes, so exactly how useful they might be remains to be seen.

Takahata points out that the reflective nanotubes are bendable, unlike other micro-mirrors, so they might find a use in flexible electronics or in computer memories based on optics.

The beam passes harmlessly through living tissue, but the nanotubes get so hot they roast nearly all of the cancer cells after one exposure.

These are made of a cylindrical mesh of interlinked carbon atoms that can carry current, but there are lots of difficulties: connecting them to the rest of the transistor, improving their not - so - hot semiconductor properties, and ensuring the nanotubes are sized and aligned correctly.

The metal with carbon nanotubes uniformly dispersed inside «is designed to mitigate radiation damage» for long periods without degrading, says Kang Pyo So.

The metal with carbon nanotubes uniformly dispersed inside «is designed to mitigate radiation damage» for long periods without degrading, Kang Pyo So says.

The near - infrared light that causes the nanotubes to fluoresce can penetrate about eight centimeters into human tissue, so physicians could potentially shine the light through skin and flesh to look for fluorescence from nanotubes signaling the presence of cancer cells.

Because the nanotubes in the Rice experiments were so thin, the energy between the quantized subbands was comparable to the plasmon energy, Kono said.

Rice chemist Andrew Barron, also a professor at Swansea in the United Kingdom, and his team have figured out how to get nanotubes clean and in the process discovered why the electrical properties of nanotubes have historically been so difficult to measure.