The method requires an electrical current to work, so it’s not completely energy-free, but it could be an effective way to propel nanoscale materials inside nano- or micro-devices. It could even lead to disappearing magical motors that vanish once their task is complete.
New DARPA-funded research could revolutionize portable power supplies, leading to lithium-ion batteries that are smaller than a grain of salt.
Jane Chang, an engineer at the University of California-Los Angeles, is designing a tiny solid electrolyte that allows charge to flow between two nanoscale electrodes. Eventually, the wee batteries could be used to power a host of micro and nanodevices.
Space technology is about to make your visit to the dentist a little more comfortable. The same production technology that made the world’s tiniest rocket motor will be used to shrink those unwieldy plastic squares the dentist sticks in your mouth during an X-ray.
Nanowires inside a rat can convert the power of breathing and heartbeats into electricity, according to researchers at the Georgia Institute of Technology. The nano-generator could conceivably lead to nano-scale medical implants and sensors powered by the body, Technology Review reports.
In the next five years, the world will need a hundred-fold increase in nano workers — the people who will build nanomaterials and develop new uses for them. In Colombia, some of these workers might very well come from the slums. At least according to one nano educator.
In the macro world, the construction shapes available to us are numerous, and the tools to build them are straightforward. But nanoarchitecture has always been much more limited -- first to two dimensions, then to only certain kinds of three-dimensional shapes. This week, scientists have broadened the possibilities for nano-building, programming DNA to bend itself into complicated custom curves. The researchers revealed their creations in the current issue of Science: a group of tight little gears, tubes, and a wireframe ball.
In the recent Robocup 2009 games, in which robots compete for prizes and glory, entrants from many nations held their own. In categories including small, medium, humanoid, 2-D simulation, and 3-D simulation, teams from the U.S., China, Germany, Iran, and quite a few other robot-producing countries played and won.
However, on the smallest playing field of all, there was one clear winner.
Tapping geothermal sources for power has proven a tricky proposition, because of costs and hazards associated with deep drilling. But researchers may have stumbled on a way to boost the power-producing potential of low-temperature hot springs close to the Earth's surface, using nanotechnology.
Will US car buyers adopt a car the size of a laundromat dryer, that costs as much as a sofa? Ratan Tata, chairman of India's Tata Motors, hopes they will. Automotive News reports that Tata is floating plans to bring a version of the $2,500 Nano minicar to the US within three years.
Chairman Tata made such remarks this week at a Cornell University forum in New York City. Deliveries of the Nano to buyers in India, where only one in one thousand people own a car, are scheduled to begin in India next month.
Experts go head to head on the issue of nanotech safety
By Josh Condon
Posted 07.20.2006 at 2:00 am 0 Comments
There´s nothing tiny about the international controversy brewing over the safety of nanomaterials. In April, a German company recalled a tile sealant called Magic Nano after dozens of consumers suffered breathing problems while using it. Never mind that the product contained particles too large to actually count as nanomaterials (which must be smaller than a billionth of a meter)-the scare was on, and European confidence in products labeled â€nanoâ€ had already sunk.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.