[cdg] Computer News - DNA robot takes its first steps
- From: "Donny Duncan" <ravers_deelite@xxxxxxxxxxx>
- To: <cdg@xxxxxxxxxxxxx>
- Date: Sun, 5 Sep 2004 19:59:09 -0500
Pulled from NewScientist (www.newscientist.com)
DNA robot takes its first steps
A microscopic biped with legs just 10 nanometres long and fashioned from
fragments of DNA has taken its first steps.
The nanowalker is being hailed as a major breakthrough by nanotechnologists.
The biped's inventors, chemists Nadrian Seeman and William Sherman of New York
University, say that while many scientists have been trying to build nanoscale
devices capable of bipedal motion, theirs is the first to succeed.
"It's an advance on everything that has gone before," says Bernard Yurke of
Bell Labs in New Jersey, part of the team that made one of the best-known
molecular machines to date: a pair of "tweezers" also constructed from DNA
strands (New Scientist print edition, 12 August 2000). Like similar
molecular-scale efforts, the tweezers' arms merely open and close: they can not
move around.
But for nanoscale manufacturing to become a realistic prospect, mobile
microscopic robots will be needed to assemble other nanomachines and move
useful molecules and atoms around.
Read more here:
http://www.newscientist.com/hottopics/tech/article.jsp?id=99994958&sub=Nanotechnology
Donny Duncan
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