Home > News > 55,000 Tiny Thomas Jeffersons
September 26th, 2006
Abstract:
Northwestern University researchers have developed a 55,000-pen, two-dimensional array that allows them to simultaneously create 55,000 identical patterns drawn with tiny dots of molecular ink on substrates of gold or glass. Each structure is only a single molecule tall.
To demonstrate the technique's power, the researchers reproduced the face of Thomas Jefferson from a five-cent coin 55,000 times, which took only 30 minutes. Each identical nickel image is 12 micrometers wide -- about twice the diameter of a red blood cell -- and is made up of 8,773 dots, each 80 nanometers in diameter.
Source:
Northwestern University
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