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Lithographically encoded polymer microtaggant using high-capacity and error-correctable QR code for
Sangkwon Han1, Hyung Jong Bae, Junhoi Kim
1Department of Electrical Engineering and Computer Science, Inter-university Semiconductor Research Center, Seoul National University, Seoul 151-744, Republic of Korea.
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.
