Polymer pen lithography
AssigneeNorthwestern University
InventorsChad A. Mirkin, Fengwei Huo, Zijian Zheng, Gengfeng Zheng
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Abstract
The disclosure relates to methods of printing indicia on a substrate using a tip array comprised of elastomeric, compressible polymers. The tip array can be prepared using conventional photolithographic methods and can be tailored to have any desired number and/or arrangement of tips. Numerous copies (e.g., greater than 15,000, or greater than 11 million) of a pattern can be made in a parallel fashion in as little as 40 minutes.
Claims10
A tip array comprising a plurality of tips fixed to a common substrate layer, the common substrate layer adhered to an at least translucent rigid support, the tips and common substrate layer formed from an elastomeric polymer, the elastomeric polymer of the tips having a compression modulus of about 10 MPa to about 300 MPa, and each tip having a radius of curvature of less than about 1 μm, and the plurality of tips, common substrate layer, and rigid support together are at least translucent.
Dependencies are inferred from the claim text.