- Biomimetic microfingerprints for anti-counterfeiting strategies.
Biomimetic microfingerprints for anti-counterfeiting strategies.
Advanced materials (Deerfield Beach, Fla.) (2015-02-07)
Hyung Jong Bae, Sangwook Bae, Cheolheon Park, Sangkwon Han, Junhoi Kim, Lily Nari Kim, Kibeom Kim, Suk-Heung Song, Wook Park, Sunghoon Kwon
PMID25656227
ABSTRACT
An unclonable, fingerprint-mimicking anti-counterfeiting strategy is presented that encrypts polymeric particles with randomly generated silica film wrinkles. The generated wrinkle codes are as highly unique as human fingerprints and are technically irreproducible. Superior to previous physical unclonable functions, codes are tunable on demand and generable on various geometries. Reliable authentication of real-world products that have these microfingerprints is demonstrated using optical decoding methods.
MATERIALS
Product Number
Brand
Product Description
Sigma-Aldrich
Trimethylolpropane triacrylate, contains monomethyl ether hydroquinone as inhibitor, technical grade
Sigma-Aldrich
Ammonium hydroxide solution, puriss., meets analytical specification of Ph. Eur., 25-30% NH3 basis
Sigma-Aldrich
Ammonium hydroxide solution, puriss. p.a., reag. ISO, reag. Ph. Eur., ~25% NH3 basis