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US 11,155,007 B2Granted
Nanostructures from laser-ablated nanohole templates
AssigneeUltra Small Fibers, LLC
InventorsWilliam Hudson Hofmeister, Alexander Yuryevich Terekhov, Jose Lino Vasconcelos da Costa, Kathleen Stacia Lansford, Deepak Rajput, Lloyd M. Davis
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Abstract
Solution casting a nanostructure. Preparing a template by ablating nanoholes in a substrate using single-femtosecond laser machining. Replicating the nanoholes by applying a solution of a polymer and a solvent into the template. After the solvent has substantially dissipated, removing the replica from the substrate.
Claims12
A method for fabricating a nanofiber array, comprising:
- (a) providing a template comprising a transparent substrate having a surface, the surface comprising a plurality of nanoholes, each nanohole of said plurality being ablated in said surface using a single femtosecond laser pulse;
- (b) filling said plurality of nanoholes with a polymer solution;
- and
- (c) extracting an array of polymer nanofibers from the template;
- wherein said nanofibers have an aspect ratio of at least ten-to-one and a diameter of less than 1000 nanometers.
2 more elements
Dependencies are inferred from the claim text.