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Advanced Materials

Lithographically Encoded Polymer Microtaggant Using High-Capacity and Error-Correctable QR Code for Anti-Counterfeiting of Drugs

Authors

  • Sangkwon Han,

    1. Department of Electrical Engineering and Computer Science, Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-744, Republic of Korea
    Current affiliation:
    1. These authors equally contributed to this work.
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  • Hyung Jong Bae,

    1. Department of Electrical Engineering and Computer Science, Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-744, Republic of Korea
    Current affiliation:
    1. These authors equally contributed to this work.
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  • Junhoi Kim,

    1. Department of Electrical Engineering and Computer Science, Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-744, Republic of Korea
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  • Sunghwan Shin,

    1. Department of Electrical Engineering and Computer Science, Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-744, Republic of Korea
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  • Sung-Eun Choi,

    1. Department of Electrical Engineering and Computer Science, Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-744, Republic of Korea
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  • Sung Hoon Lee,

    1. Department of Electrical Engineering and Computer Science, Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-744, Republic of Korea
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  • Sunghoon Kwon,

    Corresponding author
    1. Department of Electrical Engineering and Computer Science, Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-744, Republic of Korea
    • Department of Electrical Engineering and Computer Science, Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-744, Republic of Korea
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  • Wook Park

    Corresponding author
    1. Department of Electronics and Radio Engineering, Institute for Laser Engineering, Kyung Hee University, Yongin 446-701, Republic of Korea
    Current affiliation:
    1. These authors equally contributed to this work.
    • Department of Electronics and Radio Engineering, Institute for Laser Engineering, Kyung Hee University, Yongin 446-701, Republic of Korea.
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Abstract

A QR-coded microtaggant for the anti-counterfeiting of drugs is proposed that can provide high capacity and error-correction capability. It is fabricated lithographically in a microfluidic channel with special consideration of the island patterns in the QR Code. The microtaggant is incorporated in the drug capsule (“on-dose authentication”) and can be read by a simple smartphone QR Code reader application when removed from the capsule and washed free of drug.

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