Many people have had the experience of being poked in the back by a plastic tag while trying on clothes in a store. That is just one example of radio frequency identification technology, which has become a mainstay not just in retail but also in manufacturing, logistics, transportation, health care and more. Other tagging systems include the scannable barcode and the QR code.
Click here for original story, A DNA-based molecular tagging system that could take the place of printed barcodes
Source: Phys.org