Interesting use of molecular tagging. Could this be used beyond retail inventory? What is the speed and accuracy of reading the tags? Note use of machine learning integration.
Porcupine Molecular Tagging Scheme Offers Sharp Contrast to Conventional Inventory Control Systems
University of Washington Paul G. Allen School of Computer Science & Engineering Allen School News
An end-to-end molecular tagging system created by researchers at the University of Washington (UW) and Microsoft can be programmed and read within seconds using a portable nanopore device. The Porcupine system can substitute dehydrated strands of synthetic DNA called molbits (molecular bits) for bulky plastic or printed barcodes, eliminating the need for specialized laboratories and equipment. Porcupine enables the binary 0s and 1s of a digital tag to signal the presence or absence of each of 96 molbits; users read a tag's data by rehydrating and running it through Oxford Nanopore Technologies' MinION device. UW's Luis Seze said, “Porcupine is one more exciting example of a hybrid molecular-electronic system, combining molecular engineering, new sensing technology, and machine learning to enable new applications.”
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