2024
DOI: 10.1038/s41467-024-54492-8
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Artificial fingerprints engraved through block-copolymers as nanoscale physical unclonable functions for authentication and identification

Irdi Murataj,
Chiara Magosso,
Stefano Carignano
et al.

Abstract: Besides causing financial losses and damage to the brand’s reputation, counterfeiting can threaten the health system and global security. In this context, physical unclonable functions (PUFs) have been proposed to overcome limitations of current anti-counterfeiting technologies. Here, we report on artificial fingerprints that can be directly engraved on a wide range of substrates through self-assembled block-copolymer templating as nanoscale PUFs for secure authentication and identification. Results show that … Show more

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