nanowire
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A grand tour of nanotechnology at Nokia Research Center, Cambridge
We've all seen what a bumpy ride Nokia's had over the last few months -- disappointing profits, the departure of a couple of old friends, and the slight delay of the forthcoming N8. Despite all that, Espoo seems to have at least one stronghold that remained unshaken throughout the storm: its research center in Cambridge, UK. Yep, we're talking about the magical place where Nokia and University of Cambridge co-develop the core technologies for the futuristic Morph concept. Actually, "futuristic" might be too strong a word here, as we were fortunate enough to see some of Nokia's latest research at the heart of Morph -- namely flexible circuitry and nanowire sensing -- demonstrated live yesterday. Curious as to how well the demos went? Then read on -- you know you want to.%Gallery-103427%
UC Berkeley researchers craft ultra-sensitive artificial skin, robots dream of holding eggs
Researchers and engineers have been toiling on synthetic skins for years now, but most of 'em have run into one major problem: the fact that organic materials are poor semiconductors. In other words, older skins have required high levels of power to operate, and those using inorganic materials have traditionally been too fragile for use on prosthetics. Thanks to a team of researchers at UC Berkeley, though, we're looking at a new "pressure-sensitive electronic material from semiconductor nanowires." The new 'e-skin' is supposedly the first material made out of inorganic single crystalline semiconductors, and at least in theory, it could be widely used in at least two applications. First off, robots could use this skin to accurately determine how much force should be applied (or not applied, as the case may be) to hold a given object. Secondly, this skin could give touch back to those with artificial hands and limbs, though that would first require "significant advances in the integration of electronic sensors with the human nervous system. Dollars to donuts this gets tested on the gridiron when UCLA and / or Stanford comes to town.
Silicon oxide forms solid state memory pathways just five nanometers wide
Silicon oxide has long played the sidekick, insulating electronics from damage, but scientists at Rice University have just discovered the dielectric material itself could become a fantastic form of storage. Replacing the 10-nanometer-thick strips of graphite used in previous experiments with a layer of SiOx, graduate student Jun Yao discovered the latter material worked just as well, creating 5nm silicon nanowires that can be easily joined or broken (to form the bits and bytes of computer storage) when a voltage is temporarily applied. Considering that conventional computer memory pathways are still struggling to get to 20nm wide, this could make for quite the advance in storage, though we'll admit we've heard tell of one prototype 8nm NAND flash chip that uses nanowires already. Perhaps it's time for silicon oxide to have a turn in the limelight.
Displax film could turn nearly any surface into touchscreen, make your keyboard irate
Light Blue Optics already blew our minds up with its touchscreen-creating projector, but it looks like Displax will be the one to really turn the touchpanel into a modern day commodity. The Portugal-based company is trumpeting a new polymer film that can be stuck onto or just under glass, plastic or wood in order to transform a vanilla surface into one that responds to touch and airflow. Furthermore, the tech can be overlayed on curved panels, and it also plays nice with opaque and transparent surfaces. As the story goes, an array of nanowires embedded in the film recognizes your digits or pointed breath, and it then passes the information along to a microcontroller and software suite that transforms the inputs into reactions on your system. In its current form, the solution can detect up to 16 touch points on a 50-inch screen, and if all goes well, the first Displax-enabled wares will start shipping this July. Huzzah! [Thanks, Ben]
UCLA nanowire discovery could lead to faster, stronger, smaller electronics
Advancements in silicon-germanium have been going on for years now, but a team at UCLA is convinced that their discovery really is "the next big thing." For scores now, microchip makers have struggled with miniaturizing transistors as the public at large demands that things get smaller and smaller. Thanks to researchers at the aforesaid university, it's looking like silicon-germanium nanowires could be the key to making the process a whole lot easier. According to study co-author Suneel Kodambaka, the new nanowires could "help speed the development of smaller, faster and more powerful electronics," also noting that they're so small that they can be "placed in virtually anything." Which is great, because the Adamo XPS is just entirely too pudgy.
Researchers get one step closer to all-nanowire sensors
The latest in nanowire research has a crew at the University of California, Berkeley creating the very first integrated circuit "that uses nanowires as both sensors and electronic components." By utilizing a so-called "simple" printing technique, the researchers were able to create a batch of uniform circuits that could one day serve as image sensors. According to Ali Javey, an electrical-engineering professor at the institution, the goal is to "develop all-nanowire sensors" which could be used in a wide array of applications, and the benefit of using 'em is their exceptionally high level of sensitivity. In due time, the gurus would like to make everything on the circuit printable, though we have this strange feeling we won't be seeing any actual results from all of this for years to come.
Nanowire-based memory promises leap in storage capacity
Nanowires being used for memory is hardly a new idea, but a group of researchers at the University of Pennsylvania seem confident that they've found a way to leapfrog the competition, and shake up storage devices as we know them. Unlike other nanowire-based memory methods, their system employs a non-binary form of nanowire memory, which makes it possible to store three bit values (0, 1, and 2) instead of the usual two (0 and 1) -- crazy talk, we know. That, the researchers say, allows for a "huge increase" in memory density, with fewer nanowires needed to store the same amount of information as a binary nanowire-based memory system, which'd also make the actual devices smaller. Of course, that's assuming any of this stuff actually gets out of the lab, which seems to be a long ways off at best.[Thanks, Dwight]
MIT fabricates nanowire mats to selectively absorb oil
A team of astute MIT researchers have developed a sophisticated new material that could help control, contain and lessen the environmental impact of future oil spills. The creation is a mat of nanowires that actually looks a lot like paper, but unlike the material your paycheck gets printed on, this stuff can "selectively absorb hydrophobic liquids (oil-like liquids) from water." We're talking about a membrane that can "absorb up to 20 times its weight in oil, and can be recycled many times for future use." Outside of this, it could also be used in water filtration processes and for designing the next great wetsuit. Okay, so we're making that last one up, but don't dare say it's beyond the realm of possibility.[Via NewScientist]
Researchers hope to charge up gadgetry with body heat
We've heard of firms tinkering with the idea of converting excess heat directly to energy, and apparently, a team of scientists from the US Department of Energy's Lawrence Berkeley National Laboratory and the University of California at Berkeley have done just that. Oddly enough, the researchers admit that they're still unclear on how their findings actually work, but they've nevertheless discovered how to increase the conversion efficiency of converting waste heat to energy "by a factor of 100." The authors of the report suggest that clothing constructed of material embedded with thermoelectric modules could one day "recharge mobile electronic devices off the heat of one's body," and while we're certainly stoked about the idea, we're already conjuring up awful images in our minds about what this garb will actually look like.[Via textually, image courtesy of FourEyesJokeShop]
Nanowire light source might enable single-cell endoscopy
A team of researchers at Berkeley has developed a new nanowire light source they say will enable new microscopy techniques and possibly even nanophotonic computing, landing them on the cover of the prestigious journal Nature this month. "Working with individual nanowires, we've developed the first electrode-free, continuously tunable coherent visible light source that's compatible with physiological environments," says Peidong Yang, one of the team leaders -- meaning the wires can be stuck into individual cells to illuminate and interact with them. Although the technology is in its infancy, the team seems excited -- another of the principal investigators, Jan Liphardt, says that if "developed to its full potential, [nanowire light sources] could yield an embarrassment of riches in new knowledge." Just don't expect to get embarrassed anytime soon, it'll be a good 10 years until this stuff manages anything exciting in the real world.[Via Roland Piquepaille's Technology Trends]
HP's advancements in adaptable circuits could keep Moore's Law alive
Though we're guessing ink-jet cartridges are foremost on its mind, HP's new flexible circuits could make adaptable microchips possible at the consumer level, opening up whole new worlds of computer use and weird new hacker exploitations. Just like everything else new and hip these days, the new chips involve a few "nano" buzzwords, but instead of going for a full-on molecular computer like many current researchers are doing, HP is taking a bit of a hybrid approach. The new HP design uses a traditional silicon-based chip, with a mesh of nanowire switches on top. The nanowires provide flexibility to the chip, allowing it to adapt to tasks or be upgraded to a new wireless spec, but the silicon still does all the heavy lifting. Plus, the molecular switches don't draw any power except when switching from one state to another, so overall power consumption is reduced. The design is pretty much finished, so right now the HP researchers are building the first prototype, and should be finished by the end of the year. As far off as that may seem -- and there's no telling how long it will take to commercialize this once the prototype is finished -- it sounds like these guys are well ahead of other molecular computing projects, and should provide a nice stopgap for expanding computer performance while we wait for full-on molecular processors to start bumping our FPS frame rates.
Nanogenerators turn you into a duracell
For anyone who thought gyms with workout equipment that generate electricity were a good idea, prepare to be one-upped. Researchers at the Georgia Institute of Technology are working on metallic nanowires as nanogenerators that transform bodily kinetic energy into pure electricity. We were all thinking, oh, sweet, power-generating nanotech clothes. Naw dude, these peeps want to implant the nanogenerators right in your corporeal form for maximum energy output. Thought your mom got mad when you got a tattoo or piercing? Try explaining subcutaneous power generating zinc oxide nanowires.
