QR Code comestível detecta uísque falso

No futuro, você pode usar um aplicativo de smartphone para escanear um QR code invisível que informa se aquela garrafa cara de uísque é original ou não.

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Uma colaboração entre engenheiros da Universidade de Purdue nos EUA e do Instituto Nacional de Ciências Agrícolas da Coreia do Sul criou essa pequena etiqueta

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A etiqueta de seda comestível tem essencialmente um código QR que pode ser digitalizado com um smartphone.

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lembre-se de que a etiqueta não é visível a olho nu. Além disso, a etiqueta é comestível e insípida

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Não há risco para a saúde ou a alteração da qualidade do uísque.

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Para fazer as etiquetas, os pesquisadores usaram um processo intrincado no qual extraíram um biopolímero dos casulos de seda fluorescentes de bichos-da-seda especializados.

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O material é então usado para imprimir uma variedade de padrões que codificam informações, como o número de série exclusivo de um frasco de uísque.

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Durante um período de 10 meses, os dois pesquisadores colocaram etiquetas QR dentro de garrafas de uísque de vários preços e de diferentes marcas. Garantindo sua originalidade.

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