"Dip-Pen" Nanolithography

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Science  29 Jan 1999:
Vol. 283, Issue 5402, pp. 661-663
DOI: 10.1126/science.283.5402.661

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A direct-write “dip-pen” nanolithography (DPN) has been developed to deliver collections of molecules in a positive printing mode. An atomic force microscope (AFM) tip is used to write alkanethiols with 30-nanometer linewidth resolution on a gold thin film in a manner analogous to that of a dip pen. Molecules are delivered from the AFM tip to a solid substrate of interest via capillary transport, making DPN a potentially useful tool for creating and functionalizing nanoscale devices.

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