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Sangkwon Han, Hyung Jong Bae, Junhoi Kim, Sunghwan Shin, Sung-Eun Choi, Sung Hoon Lee, Sunghoon Kwon and Wook Park Lithographically Encoded Polymer Microtaggant Using High-Capacity and Error-Correctable QR Code for Anti-Counterfeiting of Drugs Advanced Materials 24

Article first published online: 28 AUG 2012 | DOI: 10.1002/adma.201201486

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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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