title: Biomimetic microfingerprints for anti-counterfeiting strategies.
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.
authors: Department of Electrical and Computer Engineering, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul, 151-744, South Korea; Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul National University, Gwanak-ro, Gwanak-gu, Seoul, 151-744, South Korea; Institute of Entrepreneurial Bio Convergence, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul, 151-744, South Korea.
authors: Hyung Jong
authors: HJ
authors: Bae
authors: Sangwook
authors: S
authors: Bae
authors: Cheolheon
authors: C
authors: Park
authors: Sangkwon
authors: S
authors: Han
authors: Junhoi
authors: J
authors: Kim
authors: Lily Nari
authors: LN
authors: Kim
authors: Kibeom
authors: K
authors: Kim
authors: Suk-Heung
authors: SH
authors: Song
authors: Wook
authors: W
authors: Park
authors: Sunghoon
authors: S
authors: Kwon
mesh_terms: D032701:Biomimetics / Q000379:methods*; D003878:Dermatoglyphics; D005607:Fraud / Q000517:prevention & control*; D006801:Humans; D055595:Mechanical Phenomena; D008863:Microspheres; D012822:Silicon Dioxide
chemical_list: D012822:Silicon Dioxide
keywords: anti-counterfeiting; biomimetics; configurable taggants; microfingerprints; unclonable taggants