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US 12,617,913 B2Granted
Reversible wrinkle patterns and methods of making and using the same
AssigneeTrustees of Tufts College
InventorsFiorenzo G. Omenetto, Yu Wang, Beom Joon Kim
Life of this patent
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Abstract
The present disclosure relates to reversibly wrinkled silk-based compositions. The provided compositions are tunable and the reversible wrinkles are sensitive to water vapor, methanol vapor, and UV irradiation. The present disclosure also provides methods for making and using the same.
Claims12
An article of manufacture, comprising:
- a layered composition comprising a silk fibroin substrate in direct contact with a flexible polymer substrate,
- wherein the layered composition, following heating and cooling of the layered composition, exhibits reversible wrinkles on at least a portion of a surface of the silk fibroin substrate, and wherein at least some of the reversible wrinkles are reduced or erased following exposure to water vapor, methanol vapor, or ultra violet (UV) radiation.
Dependencies are inferred from the claim text.