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Title: Physically unclonable security patterns created by electrospinning, and authenticated by two-step validation method
Authors: Taşcıoğlu, Didem
Atçı, Arda
Sevim Ünlütürk, Seçil
Özçelik, Serdar
Izmir Institute of Technology
Quantag Nanotechnologies
Izmir Institute of Technology
Izmir Institute of Technology
Keywords: Anticounterfeiting
Fluorescent ink
Quantum dots
Issue Date: Feb-2022
Publisher: IOP Publishing
Abstract: Counterfeiting is a growing economic and social problem. For anticounterfeiting, random and inimitable droplet/fiber patterns were created by the electrospinning method as security tags that are detectable under UV light but invisible in daylight. To check the authenticity of the original security patterns created; images were collected with a simple smartphone microscope and a database of the recorded original patterns was created. The originality of the random patterns was checked by comparing them with the patterns recorded in the database. In addition, the spectral signature of the patterns in the droplet/fiber network was obtained with a simple and hand-held spectrometer. Thus, by reading the spectral signature from the pattern, the spectral information of the photoluminescent nanoparticles was verified and thus a second-step verification was established. In this way, anticounterfeiting technology that combines ink formula, unclonable security pattern creation and two-level verification is developed.
Appears in Collections:Chemistry / Kimya
Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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