Barcode

Scientists at the Technology Transfer Unit of Portugal's University of Aveiro are developing DNA "barcodes" that can be applied to products, then subsequently read as a means of identification.

Researchers from Carnegie Mellon University have developed a system called acoustic barcodes that registers the sound of a finger scraping across notches etched, embossed or cut into a surface and converts it into a unique binary ID.

Condoms with QR codes track when and where people practice safe sex.

Scientists have developed an identification system in which mouse embryos and oocytes (egg cells) are physically tagged with microscopic silicon bar code labels.