Foresight Nanotech Institute Weekly News Digest: March 19, 2008
Digest news items also appear as posts on our blog Nanodot at http://foresight.org/nanodot. Each news item can be discussed individually in the comments area on Nanodot. We invite your participation!
It's very early days as yet, but Japan is moving forward toward the goal of molecular-level machinery to control nanotechnology-based robotic devices for medicine. In the U.S. and Europe, the poorly-informed sometimes ridicule the prospect of such nanotech robots, but visionary goals are apparently okay in Japan…
In yet another approach to using scanning probe microscopy to build better computer memories…, nanotech draws and erases lines three nm wide…
Bistable rotaxanes are mechanically interlocked molecules that have found a number of uses in nanotechnology. Now comes a report that these nanotech switches might be pressed into service as valves so that nanoparticles only release drugs in desired target areas…
… the Watson-Crick base pairs that constitute the molecular recognition code for DNA nanostructures are supplemented by other significant interactions, thus giving RNA molecules a wider range of structural and functional properties, including mimicking protein enzymes in some cases. A developing understanding of these non-Watson-Crick interactions places RNA nanotech on a firmer foundation…
The use of nanotechnology in treating cancer took a step forward with the demonstration that at least one class of nanoparticles can be manufactured with enough consistency for clinical use…
Here at Foresight we try to present a balanced view of nanotechnology, discussing prospective benefits while also acknowledging potential problems. It would be good if the "first major television series to look at the implications of advances in nanotechnology" did the same…
… Nanotechnology researchers have demonstrated that quantum dots of different sizes will absorb light of different wavelengths, and that an architecture using nanotubes transports electrons better than one using nanospheres, thus making more efficient solar cells possible…
Do you believe that nanotechnology will give society the ability to tackle the hard challenges facing humanity? What's your priority for nanotechnology: cancer treatments and longevity therapies, sustainable energy, clean water, a restored environment, space development, or "zero waste" manufacturing? Or perhaps there are potential nanotech scenarios you would like to prevent.
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April 23, 2008
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