Yan, Seeman explain nanoscale robotics

Space Daily's Charles Choi has an interview with chemists Hao Yan of Arizona State and Nadrian Seeman of NYU. "Imagine if you have self-assembled arrays from DNA and incorporate robots into them, you can have them all working together, for instance, in a device that could control medical reactions in the body," Yan told Nano World…"You wouldn't have these DNA robots just running around, but rather as components in nanofactories the same way that on a larger scale you (use) robots to make cars," Seeman clarified…"Of course, you still need to figure out how to incorporate these self-assembled arrays and nanorobots together," Yan added. "That's a challenging problem." Indeed.

DC nanobusiness/gov't press conference

Adam Keiper, who spoke at Foresight's fall conference, blogs on Nanobot about a press conference co-sponsored by the NanoBusiness Alliance and Congressional Nano Caucus. Worth reading despite a confused mention of Foresight, implying that we are promoting worries about gray goo, when the opposite is the case. Foresight president Scott Mize is participating in the nanopolicy tour described.

DNA "velcro" made in Germany

"A team of German scientists has succeeded in creating what they call DNA ëvelcroí to bind and then separate nanoparticles…This experiment could lead, one day, to ëself-constructingí materials…Nanoscience is the revolutionary new field that adopts a ëbottom-upí approach, taking atoms as the point of departure from which to ëartificiallyí create molecular nanosystems with very specific properties." It's actually better than Velcro, because it's customizable. –CP. Update: This work appears related to Nadrian Seeman's.

The multi-core microprocessors cometh…

At the 2005 ISSCC HP and Intel are announcing the Montecito (hmmm… wonder where they got that name…) release of the Itanium microprocessor. Using a 90nm process two dual-threaded 64-bit cores and 26.5 MB of cache add up to a total of 1.72 billion transistors and operating at 2 GHz. Heat production is limited to 100W. Articles here & here. Kind of interesting considering that in 2002 they were predicting that a billion transistor multi-core procesor would require the 65nm process and wouldn't be available until 2007.

More ISSCC news…

Nano-Probes Allow to See Tumors Through Skin

Roland Piquepaille writes "Nano-sized particles embedded with bright, light-emitting molecules have enabled researchers to visualize a tumor more than one centimeter below the skin surface using only infrared light. An interdisciplinary team from the Universities of Pennsylvania and Minnesota have imaged tumors within living rats by embedding fluorescent materials into cell-like vesicles called polymersomes, which are composed of two layers of self-assembling copolymers. According to the researchers, this imaging process has the potential to go even deeper. And "it should also be possible to use an emissive polymersome vesicle to transport therapeutics directly to a tumor, enabling us to actually see if chemotherapy is really going to its intended target." Read this overview for other details and references, including a picture showing how these nanoparticles are used to image a tumor beneath the skin of a living rat."

The Online Student Journal of Nanotechnology

The Online Student Journal of Nanotechnology

CALL FOR PAPERS:
Now accepting papers from graduate and undergraduate students on epistemological, societal, ethical & legal implications of nanotechnology, and its convergence with other technologies.

Articles, reviews, and papers of any length will be considered.

More…

Nanosphere improves disease detection capabilities

Wendy Emanuel writes "Northbrook, Ill. ñ February 1, 2005 ñ Nanosphere, Inc. today announced it plans to expand the application of the recently reported early detection test for Alzheimerís disease to a variety of other applications, including cancer, coronary artery disease and Mad Cow disease. More…

Physicist suggests nanotech to deal with heat death of universe

String theorist Michio Kaku suggests molecular nanotechnology as one way to deal with the heat death of the universe: "There is nothing in the rules of science to prevent the regeneration of an advanced civilisation from the molecular level. For a dying civilisation trapped in a freezing universe, this may be the last hope." The size of his proposed devices seems to vary, however. Read more for the full quote.

Nanotubes that Form 'Nanocarpets'

Roland Piquepaille writes "By mixing a salt compound with an hydrocarbon, researchers at the University of Pittsburgh have created molecules able to sense their environment. Then they used these molecules to develop self-assembling nanotubes which look like that 'nanocarpets'. These nanostructures can change colors when their environment is modified and can be trained to kill bacteria, such as E. coli. Now, they plan to develop products that would both detect and destroy biological weapons. Read more for selected excerpts about these nanostructures acting as biosensors."

Ideas for a fresher Foresight logo?

Keck writes "Foresight's logo has served us well for many years, and I'm sure many long-time members are very attached to it. But I've noticed on orkut that it's one of the duller logos around these days, entirely lacking in color and textural depth, and relatively text-heavy. Perhaps many would like to scoff at such superficial considerations, and it could even be argued that the current logo should remain defiantly retro, as it subtly testifies to Foresight's remarkable age and consistent message. But I'd like to spark a discussion about it.

Can and should the existing logo by reinvigorated by at least adding some color? Should the texty-ness also be lowered? Are there any more radical suggestions for a new logo, perhaps incorporating a bio-medical motif? Or should we just leave well enough alone? What do you think?"

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