A new fuel-free propulsion system for nanodevices works like a disappearing act, dissolving an object at one end and re-generating it at the other end.
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.
Nano-thin sheets of metal can be used to build a tiny high-definition display, according to University of Michigan researchers. They built a 9-micron-high image of their logo to prove it.
The pixels in the display are an order of magnitude smaller than those on a typical computer screen. They are roughly eight times smaller than the pixels on the iPhone 4.
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.