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N.Y. scientists create ultra-small robot

  |   May 7, 2004 at 8:33 PM
CHERRY HILL, N.J., May 7 (UPI) -- New York scientists have developed a microscopic robot, made from fragments of DNA, that walks.

Known as the "nanowalker," the 10-nanometer long object is apparently the first such miniscule device to move on two legs, said its inventors, chemists Nadrian Seeman and William Sherman of New York University.

Each leg in the walker is 36 bases long and is made from two strands of DNA that pair up to form a double helix, New Scientist reported Friday.

Persuading the walker to ferry a load, such as a metal atom, is the team's next challenge.

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