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Lift off for nanoscale printing

from Chemistry World

A new printing technique developed by U.S. scientists allows them to transfer a pattern with nanoscale features from a stamp onto a surface, achieving surprisingly sharp results. The technique could help bring down the cost of high-resolution lithography. Paul Weiss, at the University of California, Los Angeles, and colleagues created rubbery stamps from polydimethylsiloxane, with patterns made from hydrophilic siloxyl groups exposed on the top of the rubber. more


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