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US 12,303,839 B2Granted
Patterned nanofiber arrays assembled through patterned filtration
AssigneeLintec of America, Inc.
InventorMarcio D. Lima
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Abstract
An array of discrete nanofiber films that are physically separated from one another are described. Techniques for forming the nanofiber film array are also described. Techniques for forming these structures include placing a suspension of nanofibers and/or nanoparticles on a patterned substrate. A pressure differential is applied, drawing the solvent of the suspension through holes in a mask. The nanofibers collect on an impermeable layer on the mask in a pattern corresponding to the negative features (grooves, holes, trenches) of the mask as the solvent is flowed through the holes.
Claims7
A nanofiber assembly comprising:
- a nanofiber film has a first planar surface and a second planar surface at an opposing side of the first planar surface, the first planar surface being free from a supporting substrate, and
- at least one first nanofiber film disk on the second planar surface of the nanofiber film,
- wherein the at least one first nanofiber film disk comprises a plurality of nanofibers arranged in a planar orientation and randomly oriented relative to each other, has at least one geometry shape, and forms a pattern on the nanofiber film, and
- wherein the nanofiber film comprises a drawn nanofiber sheet, a filtered nanofiber film, or a combination thereof.
1 more element
Dependencies are inferred from the claim text.