Scientists develop nanoscopic barcodes for DNA labeling and data storage
Researchers have developed a technology for the controlled growing of nanocrystals that allows the creation of millions of types of atomic barcodes, suitable even for marking individual elements inside living cells.
Traditional barcodes are used to mark and identify various items, but their reduction by a million times opens up new possibilities for basic research. Scientists at the University of Technology Sydney have found a way to achieve this.
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The team has developed a method for the production of homogeneous crystalline nanorods, which allows you to control their growth direction, thickness, composition and distance between functional elements by adjusting individual atomic layers. Since the resulting inorganic structures are chemically and optically stable, they can be used as nanoscopic barcodes or data carriers.
If these crystals are modernized and supplemented with functional molecules, then they can be turned into probes to study the building blocks of life, as well as used for drug delivery or other bioengineering purposes.
Nano barcodes can also be used to protect high-value items from counterfeiting by adding them to marking inks.
Recently, Korean scientists have proposed another innovative anti-counterfeiting method using color-changing liquid crystals.
, University of Technology, Sydney, create news