Molecular manufacturing graphic on cover of C&E News

The Dec. 1, 2003, issue of Chemical & Engineering News, the primary newsweekly for chemists, featured not just the Drexler/Smalley debate but also a great illustration of molecular manufacturing on the cover. Enjoy.

More on Smalley-Drexler debate

Nobel Winner Smalley Responds to Drexler's Challenge,
Fails to Defend National Nanotech Policy

Rice University Professor Richard Smalley responds to a longstanding challenge by Foresight Chairman Eric Drexler to defend the controversial direction of U.S. policy in nanotechnology. Their four-part exchange is the cover story of the Dec. 1 2003 Chemical & Engineering News. This could mark a turning point in the development of the field.
Press release
Foresight comments and FAQ
Full text of the exchange
Technical commentary from CRN

2003 Advocate of the Year: Steve Jurvetson

Foresight Senior Associate Steve Jurvetson, a leading nanotech venture capitalist and frequent speaker at Foresight events, has been named Small Times Magazine 2003 Advocate of the Year. "…he is nevertheless one of a small group of VCs happy to associate with the sector's most far-thinking members. He is hardly averse to being quoted speaking of nanobots floating in human bloodstreams and other scenarios considered way too long-term for VC involvement." Steve's suggestion for the NNI Grand Challenge? "Whether conceptualized as a universal assembler, a nanoforge, or a matter compiler, I think the `moon-shotí goal for 2025 should be the realization of the digital control of matter, and all of the ancillary industries, capabilities, and learning that would engender." We at Foresight like Steve even more than Small Times does.

IBM builds circuits out of molecular dominoes

from the cool-things-to-do-with-an-STM dept.
Mr_Farlops writes "Researchers at IBM have built and operated the world's smallest working computer circuits using carbon monoxide molecules that move across an atomic surface like toppling dominoes. Unfortunately, these circuts are assembled by moving one molecule at a time using an ultra-high-vacuum, low-temperature scanning tunneling microscope. It takes several hours to set up the most complicated cascades. Since there is no reset mechanism, these molecule cascades can only perform a calculation once. We're not quite there yet but, the development is interesting."

European Spending Double the US on Nanotech

from the upping-the-ante? dept.
Tim Harper writes "A new report from the European NanoBusiness Association analyzes EU funding and finds that Europe is already way ahead with spending almost double that of the US." It's Ours to Lose: An Analysis of EU Nanotechnology Funding and the Sixth Framework Programme, available for free download from www.nanoeurope.org as a PDF file.

Will nanobots alter how our brains function?

from the So-what's-really-real dept.
Gina Miller writes "An audience at the Boston Fall Sensors Expo conference and exhibition was exposed in a keynote entitled 'The Rapidly Shrinking Sensor: Merging Bodies and Brain' to the idea that within a few decades nanodevices will fundamentally alter how our brains function. A September 26 EETimes article Inventor foresees implanted sensors aiding brain functions reports 'provocative predictions' by speech-recognition pioneer and Foresight Advisor Ray Kurzweil that 'by 2030 nanosensors could be injected into the human bloodstream, implanted microchips could amplify or supplant some brain functions, and individuals could share memories and inner experiences by 'beaming' them electronically to others'."

U of L Chemical Engineers' Process Grows Crops of Nanowires

Judith Hughes at the University of Louisville (Kentucky, USA) submitted this press release on 13 May 2002: "U OF L CHEMICAL ENGINEERSí PROCESS GROWS CROPS OF NANOWIRES

LOUISVILLE, Ky. ñ University of Louisville chemical engineer Mahendra Sunkara, doctoral student Shashank Sharma and their research group have developed a process for growing nanometer-scale wires that allows them to control more easily the minute wiresí size, structure and composition."

More information is available at the UL Chemical Vapor Assisted Materials Synthesis Lab in the Chemical Engineering Department

Scientists Produce Long, Hair-Like Nanotubes

Two submissioins on this item:

waynerad writes "For the first time, researchers have created a simplified method for making long, continuous, hair-like strands of carbon nanotubes that are as much as eight inches in length. This breakthrough, reported in the May 3 issue of Science, is a first step toward creating such products as microcables for electrical devices or mechanically robust electrochemical actuators for artificial muscles.

The researchers from Rensselaer Polytechnic Institute and collaborators at Tsinghua University in Beijing found that chemical vapor deposition (CVD), a widely used technique to grow nanotubes, has a high yield of long strands when a sulfur-containing compound and hydrogen are added to the process."

And Brian Wang writes "For the first time, researchers have created a simplified method for making long, continuous, hair-like strands of carbon nanotubes that are as much as eight inches in length. This breakthrough, reported in the May 3 issue of Science, is a first step toward creating such products as microcables for electrical devices or mechanically robust electrochemical actuators for artificial muscles. The researchers from Rensselaer Polytechnic Institute and collaborators at Tsinghua University in Beijing found that chemical vapor deposition (CVD), a widely used technique to grow nanotubes, has a high yield of long strands when a sulfur-containing compound and hydrogen are added to the process. Researchers have previously created nanotube fibers with more complex methods, but because CVD is commonly used to make nanotubes, it would be easily adaptable and more efficient for synthesizing the long strands for practical applications. This new method produced nanotubes that measured 20 centimeters, much longer than conventional nanotubes, said Pulickel Ajayan. http://www.eurekalert.org/pub_releases/2002-05/rpi -spl050102.php"

Debate on U.S. ban on human cloning intensifies

Gina Miller writes "In Dispute Over Cloning Experiments Intensifies, The New York Times reported on the debate in the Senate, as of March 6, 2002, on a proposal to ban all human cloning, including therapeutic cloning (also called 'somatic cell nuclear transfer', or SCNT), in which nearly microscopic balls of a few hundred cells are produced to provide stem cells for medical treatments that might cure diseases that are today incurable. The total ban has already been passed by the House and is being pushed by Pres. Bush. Actor Christopher Reeve argued passionately that therapeutic cloning should go forward because '…we have a moral responsibility to help others. Time is absolutely critical.' Supporting Mr. Reeve was Nobel laureate molecular biologist Paul Berg and Jerry Zucker, a movie producer who hopes that therapeutic cloning will provide a cure for the diabetes his daughter suffers from. Proponents of a ban railed against 'human embryo hatcheries.' United Press International Opposition grows to total ban on cloning provides additional detail about the same Senate testimony, quoting Reeve 'I'm here today because I'm very concerned we're about to snatch defeat from the jaws of victory … It is amazing to me that we have to be here today, because it's so clear that embryonic stem cells … are a miracle that could be available to us, yet there's a fear factor in this country that's really very disturbing to watch.'

A month later, as reported by Reuters on April 10 (Bush Backs Ban of All Human Cloning) and by The New York Times on April 11, 2002 (Bush Makes Fervent Bid to Get Senate to Ban Cloning Research) Bush urged the Senate to pass the bill outlawing all forms of cloning. A counter plea from 40 Nobel laureate scientists urged support of legislation that would allow therapeutic cloning."

Read more for an extensive set of links to background pieces on the developing debate over human cloning.

CVD process tames carbon nanotube growth

waynerad writes "A chemical-vapor deposition technique has been applied to carbon nanotubes to give them unusual electronic properties, according to researchers at Rensselaer Polytechnic Institute. The treated nanotubes could be used by chip makers to interconnect single-electron transistors with high-efficiency wires. The group aims to build a nanotube architecture that will exhibit near-superconducting speeds at room temperature, plus the ability to pack devices tighter and control quantum effects."

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