Sentences with phrase «nanotube about»

A single carbon nanotube about two billionths of a meter wide can compete with the best materials of today at detecting ammonia and nitrous oxide, a gas often found in automobile emissions.

Except this time the titanium dioxide arrives in the form of nanotubes about 135 nanometers wide and a tenth of a millimeter long.

Not exact matches

«Years ago there was this huge hype about carbon nanotubes, a very similar material, and then nothing happened to them,» she says.

Blindingly fast chips, flexible displays, nanotube cooling, and more: Tomorrow's technologies will change everything about computing, whether you're at home, at work, or on the road.

Carbon nanotubes are a tube - shaped material which can measure as small as one - billionth of a meter, or about 10,000 times smaller than a human hair.

Daniel Branton and his colleagues placed carbon nanotubes onto a silicon wafer, cooled it to about -163 °C and sprayed it with water, causing an 80 - nanometre - thick layer of ice to form.

Carbon nanotubes (left), quantum dots (inside cells, right), and nanoparticles show promise for many uses, but little is known about their impact on human health and the environment.

Solid chips of metal about 20 nanometres across will slide through carbon nanotubes when an electric current is switched on.

But two types of nanomaterial — loosely defined as stuff smaller than 100 nanometers — are worth worrying about, the panel found, because some evidence suggests that loose nanoparticles and nanotubes can readily penetrate cells and are toxic.

They could also store up to 1.7 % of their weight as hydrogen, about as much as carbon nanotubes could store.

As novel light sources, carbon nanotubes of about 1 micrometer in length and 1 nanometer in diameter are positioned on metal contacts in transverse direction to the waveguide.

The researchers injected about 20 micrograms of single - walled carbon nanotubes into mice.

Additionally, carbon nanotubes are 99 percent porous, meaning a nanotube is about 1 percent carbon and 99 percent air.

But when the team washed off the PVA, the nanotube fibers were only about 20 centimeters long.

They then grouped the nanotubes into a cylinder - shaped forest, measuring about 50 micrometers tall and 1 millimeter wide, and centered the array within a 3 millimeter - wide, 7 - millimeter long microfluidic channel.

Daniel Branton and his colleagues placed single - walled carbon nanotubes onto a silicon wafer, cooled it to about -163 °C and sprayed it with water, causing an 80 - nanometre - thick layer of ice to form.

About a dozen possible next - generation candidates exist, including tunnel FETs (field effect transistors, in which the output current is controlled by a variable electric field), carbon nanotubes, superconductors and fundamentally new approaches, such as quantum computing and brain - inspired computing.

Single - walled carbon nanotubes (SWCNT) are just about the thinnest tubes that can be wrought from nature.

None of the conference participants could be accused of thinking small, whether the discussion is about a 100,000 - kilometer tether made of carbon nanotubes, space - based solar power, or man's ultimate destiny to seed the galaxy.

«People have been talking about a new era of carbon nanotube electronics moving beyond silicon,» said Mitra, an electrical engineer and computer scientist and Chambers Faculty Scholar of Engineering.

These structures of carbon may be tiny — a nanotube's diameter is about 10,000 times smaller than a human hair — but their impact on science and technology has been enormous.

Andrews's skepticism stems not from doubts about the nanotubes themselves — they are more than strong enough for a space elevator — but from the difficulty of embedding them in high concentrations in a material like polypropylene.

Now a team from Cambridge University in England has devised a simple technique to increase the density of nanotube forests grown on conductive supports about five times over previous methods.

Then, one day on an airplane, Schindall read an article «about a technique... being used in a different field to grow vertically aligned nanotubes on a flat substrate,» he recalls.

In the past few decades we have learned about the soccer - ball - shaped spheres called buckyballs, soon followed by the microscopic rolls of chicken wire we know as carbon nanotubes.

When Hata tuned his apparatus to add about 100 parts per million of water to hydrocarbons — the source of the carbon for the growing tubes — and other inert carrier gases, the water reacted with the amorphous carbon from the catalyst particles but didn't damage the growing nanotubes.

To learn more about Hongjie Dai's research, see «Carbon Nanotubes as Multifunctional Biological Transporters and Near - Infrared Agents for Selective Cancer Cell Destruction,» Nadine Wong Shi Kam et al. in Proceedings of the National Academy of Sciences, Vol.

The new material needs only tiny quantities of carbon nanotubes (CNTs)-- about 1 percent by weight added to the metal — and these are inexpensive to produce and process, the team 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.

At that scale, when the nanotubes are hit by near - infrared light with wavelengths of about 800 to 1,400 nanometers, they naturally fluoresce.

Just by changing the diameter of the nanotube, we should be able to tune the plasma resonance energy without worrying about the bandgap.»

Dexter Johnson's Sept. 22, 2010 posting (Protein - based Nanotubes Pass Electrical Signals Between Cells) on his Nanoclast blog offers more proof that we still have a lot to learn about basic biological processes,

«The cool thing about our results is that we found that when you squeeze water into the nanotube, protons move through that water even faster than through normal (bulk) water,» said Aleksandr Noy, an LLNL biophysicist and a lead author of the paper.

United Kingdom About Blog The international and interdisciplinary forum, Fullerenes, Nanotubes, and Carbon Nanostructures, aims at publishing peer - reviewed research of original work in all areas of CARBON research including fullerenes, nanotubes, nanodiamond, graphene, any type of carbon nanostructure and any work dealing with carbon and carbon - relateNanotubes, and Carbon Nanostructures, aims at publishing peer - reviewed research of original work in all areas of CARBON research including fullerenes, nanotubes, nanodiamond, graphene, any type of carbon nanostructure and any work dealing with carbon and carbon - relatenanotubes, nanodiamond, graphene, any type of carbon nanostructure and any work dealing with carbon and carbon - related topics.

United States About Blog We have research center doing research on various applications of Nanotechnology and also provides Carbon Nanotubes Metal Metal Oxide Nanoparticles.

The company's technology is based about HiPCOT single - walled carbon nanotubes, and using these material Atom developed fully - printed CNT - TFT backplanes for AMOLED displays.

United States About Blog We have research center doing research on various applications of Nanotechnology and also provides Carbon Nanotubes Metal Metal Oxide Nanoparticles.

Via Technology Review More About Ultracapacitors MIT: Move Over Batteries, Here Come the Nanotube - Enhanced Capacitors Triple Hybrid with Ultracapacitors Hits the Road Hybrid Proplusion Vehicles Using Ultracapacitors More Hybrid Cars Toyota Could Buy Lithium - Ion Batteries for Hybrids from Sanyo Toyota Might Not Make a Yaris - Based Hybrid After All... For Now More Electric Cars Ford's Electric Cars Will Talk to the Power Grid, Pick Least Expensive Electricity Rates Tesla's New HQ and Powertrain Facilities Will be in Palo Alto

United States About Blog We have research center doing research on various applications of Nanotechnology and also provides Carbon Nanotubes Metal Metal Oxide Nanoparticles.