Sep 25
Coming just a year after the creation of the first carbon nanotube computer chip
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Feb 12
Banking on the whole notion of it not being the size of the gift that counts, physics students at Brigham Young University have created what could be the world’s tiniest cupid, made of carbon nanotubes. More »
Nov 16
The expansion and contraction of muscles keeps us alive every second of every day. Even though it’s such a basic part of our existance, creating artificial muscles has proven to be a bit more complicated. That is, until now. Scientists have recently found what could be a good solution: yarn full of wax. More »
Oct 28
IBM Labs develops ‘initial step’ towards commercial fabrication of carbon nanotubes
Posted in: Today's Chili 
Commercialization of carbon nanotubes is one of the holy grails of next-gen computing, and IBM thinks it’s made crucial steps toward making this a reality. This isn’t the first time that we’ve heard such a claim, of course, but IBM’s considerable resources will make this particularly interesting. The specific problem it’s been tackling is placing enough semiconducting nanotubes together to be useful in commercial chips, with current attempts being more in the hundreds, rather than billions that would be required. The new approach uses ion-exchange chemistry that allows controlled placement of nanotubes at two orders of magnitude greater than before, with a density of roughly a billion per square centimeter. To achieve this, the nanotubes are mixed with a soap-like substance that makes them water-soluble. Next, a substrate comprising two oxides and a hafnium oxide “trench” is immersed in the soap-solution, which results in the nanotubes attaching to the hafnium oxide canals with a chemical bond. Simple when you think about it! IBM hopes that as the materials and method are readily accessible now, that industry players will be able to experiment with nanotube technology at a much greater scale. Though, as we’ve become accustomed, there’s no solid timescales on when this might realistically unfold.
Continue reading IBM Labs develops ‘initial step’ towards commercial fabrication of carbon nanotubes
IBM Labs develops ‘initial step’ towards commercial fabrication of carbon nanotubes originally appeared on Engadget on Sun, 28 Oct 2012 14:00:00 EDT. Please see our terms for use of feeds.
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Oct 10
MIT pencils in carbon nanotube gas sensor that’s cheaper, less hazardous (video)
Posted in: Today's Chili 
Carbon nanotube-based sensors are good at sniffing out all kinds of things, but applying the cylindrical molecules to a substrate has traditionally been a dangerous and unreliable process. Now, researchers at MIT have found a way to avoid the hazardous solvents that are currently used, by compressing commercially available nanotube powders into a pencil lead-shaped material. That allowed them to sketch the material directly onto paper imprinted with gold electrodes (as shown above), then measure the current flowing through the resisting carbon nanotubes — allowing detection of any gases that stick to the material. It works even if the marks aren’t uniform, according to the team, and the tech would open up new avenues to cheaper sensors that would be particularly adroit at detecting rotten fruit or natural gas leaks. For more info, sniff out the video after the break.
Continue reading MIT pencils in carbon nanotube gas sensor that’s cheaper, less hazardous (video)
MIT pencils in carbon nanotube gas sensor that’s cheaper, less hazardous (video) originally appeared on Engadget on Wed, 10 Oct 2012 14:06:00 EDT. Please see our terms for use of feeds.
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Sep 30
New process for nanotube semiconductors could be graphene’s ticket to primetime (video)
Posted in: Today's Chili 
In many ways, graphene is one of technology’s sickest jokes. The tantalizing promise of cheap to produce, efficient to run materials, that could turn the next page in gadget history has always remained frustratingly out of reach. Now, a new process for creating semiconductors grown on graphene could see the super material commercialized in the next five years. Developed at the Norwegian University of Science and Technology, the patented process “bombs” graphene with gallium, which forms droplets, and naturally arranges itself to match graphene’s famous hexagonal pattern. Then, arsenic is added to the mix, which enters the droplets and crystallizes at the bottom, creating a stalk. After a few minutes of this process the droplets are raised by the desired height. The new process also does away with the need for a (relatively) thick substrate to grow the nanowire on, making it cheaper, more flexible and transparent. The inventors state that this could be used in flexible and efficient solar cells and light emitting diodes. We say forward the revolution.
New process for nanotube semiconductors could be graphene’s ticket to primetime (video) originally appeared on Engadget on Sun, 30 Sep 2012 12:15:00 EDT. Please see our terms for use of feeds.
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Jun 28
Ubiquitous nanotubes could reboot Edison-era nickel-iron battery technology
Posted in: Today's Chili 
Back in the 1920s, Thomas Edison’s dream of an electric automobile was ultimately foiled by those meddling petroleum engines. But thanks to nanotube research from Stanford University, one legacy from that era may regain some glory: nickel-iron batteries. It turns out that carbon nanotubes doped with nickel and iron crystals can top up the normally slow-charging cells in a matter of minutes — according to the scientists, that’s almost 1,000 times faster than in the past. Although the batteries couldn’t power your Volt or Prius due to a lack of energy density, they could give an extra jolt to their lithium-ion siblings for quicker starts and regenerative braking. The researchers are working on improving stability to allow more charging cycles, but it might be an extra in-your-face for Edison if it pans out.
Ubiquitous nanotubes could reboot Edison-era nickel-iron battery technology originally appeared on Engadget on Thu, 28 Jun 2012 02:51:00 EDT. Please see our terms for use of feeds.
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