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        Atomic scale electronic switches

        gotjosh writes "The EU nanoforum reports that Japanese scientists have used nanowires to create atomic switches and demonstrate basic logic cuircuts! Tsuyoshi Hasegawa of the National Institute for Materials Science claims that their atomic scale switches will improve performance over today's mechanical semiconductor devices (possibly by several orders of magnitude depending on wire capacitance) . More information (such as the elecrolytes they used and that the researchers reported their work in /Nature/) is available here without a login."

        Europe's nanotech priorities

        As was pointed out in this article brought to our attention by Christine Peterson, Europe seems to be picking up the nanotech pace in a serious way.

        We can divide the world up in terms of expertise. Perhaps the U.S. has the crown with inventiveness. But Europe has the Ariane (which still happens to be flying), Mercedes, Bentleys and Rolls (all of which are very good examples of fine engineering). The Asian collective has a unique ability to turn ideas into mass appeal products and make them affordable enough that they can sell millions.

        [*Yes*, I am grossly generalizing here but please take it within the context of the conversation.]

        So the question becomes — *who* will be the developers of and subsequently who will dominate the nanotech markets?

        Online Nanomedicine conference

        EurekaAlert/AAAS will be having an online chat/conference Jan. 12 2005 from 10-12 AM EST. The URL: http://www.eurekalert.org/nanotalk.

        You can submit questions before the chat session.

        The panel they have assembled appears to involve several well informed experts from a biomedical standpoint — whether they are well informed from a nanomedical standpoint could be a provocative topic for conversation.

        Even if you cannot make the conversation please do submit your questions for discussion.

        Anything and all we can do to engage and/or educate the the more classic academic school is time well spent.

        Nanomechanical Memory Outstrips Chip Technology

        Roland Piquepaille writes "This sounds almost too good to be true — at least for some time. Physicists from Boston University have fabricated nanomechanical switches which promise fantastic advances in data storage. Their nanodevices will have densities exceeding by orders of magnitude existing storage devices. They will deliver data at speeds in the megahertz (and possibly gigahertz) range, also exceeding by far the few hundred kilohertz of our current hard drives. And finally, they will only use some femtowatts of power each, leading to hard drives consuming maybe a million times less electricity than existing devices. So, where's the catch? Will we ever see hard drives built with these nanomechanical switches? Honestly, I don't know, but read more for other details and references."

        Intelligent nanoparticle systems?

        Carsten Zander writes Intelligent nanoparticle systems? Here is an (hypothetical) example:
        An "intelligent" nanoparticle unit could imitate a neural network. It could be a simple mixture of a few nanoparticles N and o:

        N o N o N
        o N o N o
        N o N o N
        o N o N o
        more….

        Radicals find no freedom from fullerenes

        HLovy writes "
        What's important to note about the big nanotube/fullerene corporate love match announced this week is what CSixty is bringing to bulk materials supplier Carbon Nanotechnologies Inc. — some important drug-delivery technology and a partnership with Merck & Co.

        more…

        Mike Honda/IEEE Nano event

        Gina Miller writes "Government Support for Nanotechnology in Silicon Valley with Congressman Mike Honda presented by IEEE SF Bay Area Nanotechnology Council will be held January 18, 2005 in San Jose, California, USA. Email: [email protected] to RSVP or with questions."

        Transparent Transistors

        While it is not strictly classical nanotechnology, researchers at OSU and Hewlett Packard are reporting the development of transparent transistors based on zinc-tin-oxide.

        This of course begs the question given the energy absorption capability, heat radiation capability and the fact that one is moving around electrons which can be much faster than moving around covalently bonded carbon atoms (as is the case with the Drexler rod-logic computer) whether we are headed for an age when our windows are more intelligent than we are?

        IMM Prizes in Computational Nanotechnology for 2004

        Tim Fonseca writes "Greetings,

        This is not a story, but a question. My question concerns my qualifications for entering my nanomedicine image renderings in the "IMM Prizes in Computational Nanotechnology for 2004 Art Contest" http://www.imm.org/prizes/ The IMM webpage mentions that submissions can be sent to Nanodot. Here I am at Nanodot, and damned if I can find a place to submit an image entrie. Please browse through my Nanobot Galleries, on my website. Let me know if my nano images qualify for the "design" and "rendering" categories of the 2004 IMM contest. Can one do a time reversal and enter the 2003 IMM contest, too, since no one won that year? As you can see, pride does not standeth in my wayeth.

        Thanks,
        Tim Fonseca"

        The editors of nanodot apologize to Tim that it took so long to work back to his submission which is now ~6 months old.

        Molecular Electronics based memories

        UCLA and the California NanoSystems Institute are reporting on rapid progress in Molecular Electronics based on rotaxanes and catenanes [1, 2].

        They apparently have an operational 64-bit RAM and are working on a 16-Kbit memory. These have densities that conventional DRAM or disk drive manufacturers can only wish for in their dreams.

        1. Flood AH, Stoddart JF, Steuerman DW, Heath JR., Chemistry. Whence molecular electronics? Science 306(5704):2055-6 (17 Dec 2004).

        2. Science Daily: Rapid Progress Reported In Emerging Field Of Molecular Electronics (20 Dec 2004).

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