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12/15/2004 4:56:02 PM
'Nano-needle' operates on cell

Scientists have performed a delicate surgical operation on a single living cell, using a needle that is just a few billionths of a metre wide.

They claim the procedure could be used to manipulate embryonic stem cells intended for use in medical treatment.

This "nano-needle" was used together with an atomic force microscope (AFM) to penetrate the membrane of a cell to a depth of one or two micrometres.

The Japanese team will outline details in a future issue of Nano-Letters.

"The cells used were on the micrometre scale but we adjusted the procedure for the nanometre scale using an AFM," co-author Noriyuki Nakamura told the BBC News website.

...more at BBC News

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