Irreproducible SEBS wrinkling based on spin evaporation enabling identifiable artificial finger pad electronics.

ABSTRACT: Irreproducible wrinkling, characterized by randomly arranged ridges or creases on material surfaces, has significant potential for application in entity identification and anti-counterfeiting. However, active research in this field is hindered because the existing wrinkling methods face challenges in realizing discernible patterns and potential applications of submillimeter-scale wavelength wrinkles are yet to be identified. Herein, we propose a strategy to create unique and irreproducible styrene-ethylene-butylene-styrene (SEBS) wrinkles using "spin evaporation", a technique that rapidly removes the solvent by spinning. We demonstrate the realization of SEBS wrinkles with wavelengths of hundreds of micrometers with high randomness, irreproducibility, and resistance to external stimuli. Im

SUBMITTER: Lee J 

PROVIDER: S-EPMC11882948 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature