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nanotech posts

Mizzou's nuclear battery to power things smaller than your brain can imagine

by Darren Murph posted Oct 10th 2009 at 11:52AM

Oh yeah, everyone loves the extended battery, but are we really kosher with the added bulge? A team of boffins at the University of Missouri certainly aren't, as they've spent the last good while of their lives researching and developing a new nuclear battery that could be used to power devices much smaller than, well, most anything. The radioisotope cell, as it's called, can reportedly "provide power density that is six orders of magnitude higher than chemical batteries," and while some may question the safety of this potentially volatile device, the liquid semiconductor (used instead of a solid semiconductor) should help ease concerns. The current iteration of the device is about the size of a penny, and it's intended to power a variety of MEMS systems. Now, if only these guys could find a way to make a standard AA last longer than a week in our Wiimote, we'd be pleased as punch.

[Via BBC, thanks Jim]

Uber-nano nanolasers could lead to faster computers, reliable internet, neverending list of awesome things

by Laura June posted Aug 5th 2009 at 6:42PM

Researchers at Arizona State University and Technical University of Eindhoven in the Netherlands have been collaborating on a project to make lasers significantly smaller than the ones that are currently available, by finding a way around the traditionally accepted diffraction limit -- the idea that the size of lasers in any one dimension (say, thickness) is limited to half of the wavelength involved. One way around the size limitation, they've found, is to use a combination of semiconductors and metals like gold and silver, which causes electron excitement which helps confine the light in a laser to smaller spaces than that of the supposed limit. Using this method, the team has created nanoscale lasers that are one quarter of the wavelength or smaller -- as opposed to the previously accepted size limitation of one half of the wavelength. As far as consumer applications go, the smaller the laser, the easier it will be to integrate them into small electronics components, leading to things like faster products and more reliable internet access. Sounds great, right? Well, chill out: they're still working on it, with no word on when we'll see any street application of the nano nanolasers.

[Via Gizmag]

Tiny, printable batteries promise to change the face of obnoxious greeting cards forever

by Laura June posted Jul 2nd 2009 at 4:10PM

Researchers at the Fraunhofer Research Institution for Electronic Nano Systems ENAS in Chemnitz led by Prof. Dr. Reinhard Baumann have unveiled tiny, printable batteries that they hope to put into production for pennies apiece. The new battery prototype is primarily composed of a zinc anode and a manganese cathode that can be screen printed and covered with a non-printed template cover. Each mercury-free battery weighs less than one gram, and can individually produce about 1.5 volts of electricity. By placing several batteries side by side, however, up to 6 volts can be generated. The institute has already produced these little power houses in the lab, and hopes to see them into production by the end of the year. The batteries have a relatively short lifespan, making them suitable for applications such as powering greeting cards. All we can say is that this battery would have made the card we got two years ago that sang "Word Up" much, much awesomer.

[Via Physorg]

Researchers create nanotube memory that can store data for a billion years

by Laura June posted Jun 9th 2009 at 10:32PM

Researchers at the Department of Energy's Lawrence Berkeley National Laboratory and UC Berkeley have developed an ultra-dense memory chip that is capable of storing data for up to a billion years (besting silicon chips by roughly... a billion years). Consisting of a crystalline iron nanoparticle shuttle encased within a multiwalled carbon nanotube, the device can be written to and read from using conventional voltages already available in digital electronics today. The research was led by Alex Zettl, who notes that current digital storage methods are capable of storing mass amounts of data, but last just decades, while, say, some books have managed to last nearly a thousand years, though the amount of data they contain is quite small. The new method, called shuttle memory, is based on the iron nanoparticle which can move back and forth within the hollow nanotu. Zettl believes that, while shuttle memory is years away from practical application, it could have a lot of archival applications in the future. There's a video after the break, hit the read link for more tiny details.

[Via The Register]

Continue reading Researchers create nanotube memory that can store data for a billion years

Flexible, stretchable, rubbery OLED prototype shown off in Tokyo

by Laura June posted May 11th 2009 at 11:46AM

Electrical engineering researchers at the University of Tokyo have developed a flexible, stretchable OLED that acts something like rubber, and does not tear or break when stretched. The material is produced by spraying a layer of carbon nanotubes with a fluoro-rubber compound, creating a rubbery, conducive material. The current, monochrome display prototype has a resolution of just 256 pixels, is 10-centimeters square, and can apparently be folded about 1,000 times with out falling apart, tearing, or imploding. The team is presenting its findings in the British science journal Nature Materials this month.

[Via Slashgear]

Fukitorimushi cleaning bot is just like a pet -- only cleaner, quieter, better behaved, and more pillow-shaped

by Laura June posted May 7th 2009 at 11:13PM

Panasonic recently unveiled a new kind of cleaning robot at the Tokyo Fiber Senseware Expo in Milan. Called Fukitorimushi, the small service bot is covered in Nanofront, a nanofiber polyester fabric which can absorb oil and pick up small paricles of dust. It moves a bit like an earthworm, crawling about the floor using several light sensors to root out the dirt, and can navigate itself back to its charging station when it needs more juice. Designers of the spiffy little guy seem to think that owners will bond to it as if it were a pet. No word on when these dudes will be commercially available, but we'll let you know as soon as we score one of our very own -- we're thinking about calling it Sal. There's a video of it doing its rather unnerving business after the break.

[Via Robots.net]

Continue reading Fukitorimushi cleaning bot is just like a pet -- only cleaner, quieter, better behaved, and more pillow-shaped

Underwater robot has sense of touch, class and style

by Laura June posted May 7th 2009 at 10:23AM

At the Fraunhofer Institute in Bremen, Germany, a group of researchers, in conjunction with the German Research Center for Artificial Intelligence DFKI, is developing an underwater robot with a sense of touch. The octopus-esque robot is equipped with a strain gauge which triggers electrical resistance changes when an obstacle is encountered. The strain gauges -- which are printed onto the robot -- which are ten micrometers wide (about half the width of a human hair), are made up of atomized nanoparticles, and are extremely sensitive. The researchers intend for the robot to be able to distinguish between actual obstacles and water currents. The robot's first stop will be a public trade show at the end of May in Nuremberg, after which it will presumably make it's way to the dark depths of the sea to meet up with Captain Nemo and the giant squid.

New material could make robot muscles better, faster, stronger

by Donald Melanson posted Mar 20th 2009 at 10:23PM

There's already been countless advances in the always exciting field of robot muscles, but a team of researchers from the University of Texas have now made what appears to be a considerable leap forward, which they say could allow for "performance characteristics that have not previously been obtained." The key to that is an entirely new material comprised of ribbons of tangled nanotubes, which can expand its width by 220% when a voltage is applied and return to its original shape in just milliseconds when the voltage is removed. What's more, the material is not only "stronger than steel and stiffer than diamond," but it's able to withstand an extreme range of temperatures from -196 °C to 1538 °C, which could allow robots equipped with the muscles to operate with ease in a wide variety of off-world colonies, er, "harsh environments." Head on past the break for a demonstration of the material in its non-robot form.

[Image courtesy NASA Jet Propulsion Laboratory]

Continue reading New material could make robot muscles better, faster, stronger

Nanotech research could fit 10 trillion bits of data onto disk the size of a quarter

by Laura June posted Feb 20th 2009 at 11:54AM

Two researchers, Ting Xu and Thomas Russell, are in the midst of developing some potentially sweet nanotech that could allow storage of around 10.5 terabits (or 10 trillion bits) of data on a space the size of a quarter. They're currently working on the technique, which starts with a sliced crystal (sapphire or silicon) sliced at a jagged angle, which is then heated to 2,700 degrees Fahrenheit which causes the crystal to reorganize itself into a sawtooth pattern at three nanometer angles. The crystal is then sprayed with a custom polymer, dried, and treated again with a different solvent, after which the polymer then settles into a hexagonal pattern on the surface of the crystal. Sound complicated? Well, it is, and all the kinks aren't quite work out, but the technique essentially provides a path to creating a self-assembling disk with far more storage capacity than anything currently available. The current state of the research will be detailed in the upcoming issue of Science magazine. We'll believe it when we see it, but keep up the good work, guys!

Tattoo-like nanosensor could monitor glucose levels, enhance your cool factor

by Darren Murph posted Feb 17th 2009 at 7:48AM

Make no mistake, there are quite a few sophisticated ways to monitor one's glucose levels, but we're pretty certain we've never seen an approach as simple and as bodacious as this. Massachusetts-based Draper Laboratories has stumbled upon a new embeddable nanosensor that could, at least in theory, eliminate those painful pricks endured today by so many diabetics. The so-called "injectable nanotech ink" could be inserted under the skin much like a tattoo, though Draper's Heather Clark notes that it "doesn't have to be a large, over-the-shoulder kind of tattoo." In fact, it can be as small as a few millimeters in size, though if it were us, we'd use it as the perfect excuse in order to plaster our backs with Ice Climbers. Testing of the new approach is expected to begin very soon, though that usually means it won't be ready for humans until at least a few years later. Ah well, plenty of time to dream up the perfect design, right?

[Via medGadget]

Probabilistic logic makes microchip more energy efficient

by Darren Murph posted Feb 9th 2009 at 6:09AM

We'll be straight up with you -- there's a lot of fancy work going on with this one that laypeople will have a tough time grasping, but the long and short of it is this: a team from Rice University (Krishna Palem pictured) and Nanyang Technological University have created a microchip that "uses 30 times less electricity while running seven times faster than today's best technology." Already crying snake oil? Not so fast. By trashing the traditional set of mathematical rules (that'd be Boolean logic) and instead applying probabilistic logic, researchers have figured out how to deliver similar results with a fraction of the energy. The tech is being dubbed PCMOS (probabilistic CMOS), and could eventually end up in embedded systems and even cellphones. In the case of the latter, this type of chip will be able to display streaming video on a minuscule display with more artifacts than usual, but due to the small screen size and the human brain's ability to piece together nearly-perfect images, the errors involved would be all but forgotten. Meanwhile, your battery bar would still be nearly full. We always heard there was beauty in imperfections -- now, at long last, we finally get it.

Rice University rolls out new and improved "nanocar"

by Donald Melanson posted Feb 4th 2009 at 4:11PM

Nano-sized letters are one thing, but nothing impresses the nanotechnology community like creepy crawly nanotech, and some researchers from Rice University look to have fully delivered on that point with their latest so-called "nanocar." At about two nanometers in length, the new nanocar apparently doesn't represent a drastic reduction in size over the previous incarnation, but it does have the notable advantage of being able to "travel" across surfaces at room temperature (a temperature of 200° Celsius was required before). Interestingly, that breakthrough was actually discovered by accident, and was later able to be confirmed using a mix of time-lapse photography and a new tracking algorithm. As you might have guessed, however, they're still quite a ways away from being able to actually control the car, although the researchers say using six wheels instead of four could help with that, as could tracks to keep 'em going in one direction.

[Via DailyTech]

Demron garments resist radiation without overlooking style

by Laura June posted Jan 28th 2009 at 9:10PM

Sure, radiation's not high on our personal list of threats, but that doesn't mean it's not on someone's, right? Well, to that end, Radiation Shield Technologies has developed a full line of radiation-defeating garments (the thyroid collar being our favorite). In fact, the company has just been awarded a patent for the nanotechnology which they say is the "world's first protective material designed for all types of chemical, biological, radiological and even nuclear incidents." The material, called Demron, is a nanopolymeric compound (which they call "liquid metal") fused between layers of fabric and concocted into gear which is lead-, toxin-, and PVC-free, and is capable of blocking gamma rays, X-rays and other nuclear emissions. The garments are currently used by NASA and various governments across this planet of ours, but they also seem to be commercially available for prices ranging from about $700 up to $6,500 for the nuclear blanket. Citizens of Megaton: rejoice!

[Via TG Daily]

Read - Radiation Shied Technologies
Read - U.S. Patent #7,476,889

Researchers tapping into nanotechnology for sharper images

by Darren Murph posted Jan 4th 2009 at 4:04AM

A team of scientists at the University of Glasgow just came into all sorts of cash, and they'll be using it to advance imaging. If you're looking for specifics (and we're assuming you are), a £489,234 grant from the Engineering & Physical Sciences Research Council will be used to study a certain phenomenon called surface plasmon resonance, "which is an effect exhibited by certain metals when light waves fall onto their surfaces." In short, the gurus behind the research are hoping to discover a method of "creating patterns or small nanostructures in the metal film on the CMOS, which should increase the sensitivity of the sensor and result in higher quality images." The bad news? The project is expected to last until 2012, which is like, forever from now.

[Image courtesy of Photo]

Canon cleared to resume work on SED TV (now that the world doesn't care)

by Darren Murph posted Dec 2nd 2008 at 2:35PM

We're hard pressed to think of a display-related story that has lingered on longer than SED (well over four years at last count), and believe it or not, this still isn't apt to be the last you hear of it. If you'll recall, Canon recently declared victory after winning a lawsuit against Applied Nanotech that was previously holding it back from making progress, and now Applied Nanotech has waved the final white flag by giving up its right to appeal. Comically enough, it may actually be too late for Canon to even salvage the win, with president Tsuneji Uchida noting that "at times like this, new display products are not introduced much because people would laugh at them." Shh... nobody tell him the world's been laughing at SED for years.

[Via OLED-Display]