Researchers of Seoul National University have developed what is called the Nano DNA-Barcode System (NDBS).

The system is literally invisible which prevents fabrications of barcode information such as password changes or nullification.

DNA-encapsulated nano material is sprayed on or impregnated in products such as those of petroleum, paint, agriculture or livestock and information concerning a product can be obtained by extracting nano molecules through a method known as polimerase chain reaction.

The genetic codes carry data such as origin of the product, quality details and suppliers. This allows for easily identification and traceability. “It can be used in the event of an outbreak of mad cow disease or an oil spillage,” said Professor Choy Jin-ho who leads the research.

Among other applications is the identification of counterfeit bills if new bills are impregnated with an invisible inorganic DNA nanohybrid during production.

From Korea Times.