Bio-Inspired Structural Color Irises as Physical Unclonable Functions for Anti-Counterfeiting.

ABSTRACT: The global proliferation of high-value commodities has the intensified demand for advanced anti-counterfeiting solutions. Physical Unclonable Functions (PUFs) present a viable authentication mechanism, yet existing implementations exhibit three critical limitations: suboptimal authentication accuracy, insufficient multi-level security architecture, and dependence on costly and specialized equipment for verification. To address these issues, this work utilizes colloidal photonic crystals to fabricate PUF anti-counterfeiting patterns spanning from the macro-to-micro scale. These patterns are integrated with the iris recognition algorithm to construct a multi-layered optical anti-counterfeiting system based on the structural color iris. This work experimentally and computationally demonstrate

SUBMITTER: Ge K 

PROVIDER: S-EPMC12442702 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature