Researchers develop an invisible type of bar code to thwart criminals
Friday, June 6, 2014 - 09:02
in Physics & Chemistry
(Phys.org) —A team of researchers at Worcester Polytechnic Institute in Massachusetts has developed a type of bar coding system that would be almost impossible for criminals to thwart. As the team describes in their paper published in the journal Scientific Reports, the new system is based on adding certain types of nanoparticles to materials as part of the manufacturing process that can be read later using a special device.