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Physically unclonable security patterns created by electrospinning, and authenticated by two-step validation method.

Didem Taşcıoğlu1,2, Arda Atçı2, Seçil Sevim Ünlütürk3

  • 1Department of Material Science and Engineering, Izmir Institute of Technology, Urla 35430, İzmir, Turkey.

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PubMed
Summary

This study developed an advanced anticounterfeiting technology using unique electrospun patterns and dual verification methods. It combines material properties with pattern recognition for robust security tag authentication.

Keywords:
InZnP/ZnS/DDT colloidal nanoparticleanticounterfeitingelectrospinningfluorescent inkquantum dotssecurity patterns

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Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Forensic Science

Background:

  • Counterfeiting poses significant economic and social challenges.
  • Existing security measures are often insufficient against sophisticated fakes.
  • Novel methods are needed for reliable product authentication.

Purpose of the Study:

  • To develop a novel anticounterfeiting technology.
  • To create unique, inimitable security patterns using electrospinning.
  • To establish a two-level verification system for authenticity checks.

Main Methods:

  • Electrospinning was employed to generate random, unclonable droplet/fiber patterns.
  • Smartphone microscopy was used to capture and database original patterns.
  • Spectrometers were utilized to obtain spectral signatures for verification.

Main Results:

  • Generated security tags are visible under UV light but invisible in daylight.
  • A database of original patterns enabled authenticity verification via image comparison.
  • Spectral signature analysis confirmed the photoluminescent nanoparticle composition, providing a second verification layer.

Conclusions:

  • The developed technology integrates ink formulation, unique pattern generation, and dual verification.
  • This method offers a robust and practical solution for anticounterfeiting.
  • The combination of physical patterns and spectral data enhances security tag reliability.