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Nanoscale
The downside of nanotech: do tiny particles spell big trouble?
By Darren Quick
18:01 December 14, 2009 PST
We talk a lot about the wonders of nanotechnology here at Gizmag. After all it’s easy to get caught up in the excitement surround the technology when it promises to revolutionize practically every area of human endeavor. Among its long list of anticipated benefits are new medical treatments; stronger, lighter materials; improved energy production, storage and transmission; and more effective pollution monitoring and prevention, just to name a few. But nanotechnology is not just something set to come about in some far off future – it is happening now. In fact, the odds are there is a product either containing, or made using nanoparticles sitting in your house right now. But the big question is, are they safe? Read More
Scientists squeeze more out of light
By Jeff Salton
20:23 December 9, 2009 PST
Scientists at the University of Adelaide, Australia, have put the squeeze on light. By discovering that light within optical fibers can be squeezed into much tighter spaces than was previously believed possible, the researchers at the University's Institute for Photonics and Advanced Sensing (IPAS) have claimed a breakthrough that could change the world's thinking on light’s capabilities, especially when it comes to its use in telecommunications, such as fiber-to-the-home (FTTH), computing and other light sources. Read More
Light resonators used to move nano-sized objects
22:55 November 19, 2009 PST
Scientists at Cornell University report they can now use a light beam carrying a single milliwatt of power to move objects and even change the optical properties of silicon from opaque to transparent at the nanometric scale. Such an advancement could prove very useful for the future of micro-electromechanical (MEMS) and micro-optomechanical (MOMS) systems. Read More
Sound could be the key in building tomorrow's nanostructures
19:55 September 1, 2009 PDT
Researchers from Penn State University have found a way to precisely manipulate tiny objects using sound rather than optical instruments with a quick, energy-effective and technologically-simple technique that could have important applications in the fields of nanotechnology and biological research. Read More
Nanoscale lasers continue to shrink, heralding new era in optical science
By Darren Quick
20:28 August 31, 2009 PDT
Breakthroughs are coming thick and fast – or should that be thin and fast – in the field of nanoscale lasers. It wasn’t even a month ago that we reported on the development of a laser emitting 'metal-semiconductor-metal sandwich', made up of a semiconductor as thin as 80 nanometers laying between 20-nanometer dielectric layers. But now researchers at the University of California, Berkeley, have reached a new milestone in laser physics by creating the world's smallest semiconductor laser, capable of generating visible light in a space smaller than a single protein molecule. Read More
Tiny lasers hold key to nano-circuitry
18:31 August 23, 2009 PDT
Researchers at Cornell, Purdue and Norfolk State University have reported the successful creation of a 'spaser', a new kind of nanoscale laser that breaks dimensional limits previously thought to be insurmountable, leading the way to significantly faster and more efficient computer processing and data transfer rates. Read More
Self-healing paint is just the beginning
By Darren Quick
06:04 August 6, 2009 PDT
Human skin has an amazing capacity to heal itself from scratches and cuts, so it’s not surprising that scientists are looking at transferring the self-healing properties of skin to industrial materials. Efforts to embed tiny liquid-filled capsules that rupture when a scratch occurs to spill healing agents into the damaged area of electroplated coatings have previously been hampered by the size of these capsules. But now researchers have developed a process for producing electroplated layers with nano-capsules that measure only a few hundred nanometers in diameter that could solve the problem. Read More
Researchers take first steps towards strain-based graphene engineering
19:08 August 5, 2009 PDT
Scientists have long known the unique properties of graphene, a material just one-atom thick that shows promise as a replacement for silicon in electronics of the future. One of the difficulties is that unpredictable ripples form in graphene when exposed to temperature changes, but now scientists are learning more about how to control formation of these ripples, which could open up a new field of research - strain-based graphene electronics. Read More
windykites1
- February 9, 2010 @ 19:22 UTC
