DNA, biology's data storage, can be implanted into objects to give them code of their own
is a miracle of modern technology. For $50 anyone can buy a machine that can comfortably store the contents of, say, the Bodleian Library in Oxford as a series of tiny magnetic ripples on a spinning disk of cobalt alloy. But, as is often the case, natural selection knocks humanity’s best efforts into a cocked hat., the information-storage technology preferred by biology, can cram up to 215 petabytes of data into a single gram. That is 10m times what the best modern hard drives can manage.
’s disadvantages—which are that, compared with hard drives, reading and writing it is fiddly and slow.Now, though, a team led by Yaniv Erlich of Erlich Lab, an Israeli company, and Robert Grass, a chemist at the Swiss Federal Institute of Technology, in Zurich, have had another idea. As they describe in a paper indata storage to give all manner of ordinary objects a memory of their own.
The researchers describe a test run in which they encoded the Stanford bunny—a standard test image in computer graphics—into chunks of. Those chunks were then given a protective sheath of silica nanoparticles. That served to protect them for the next stage, in which they were mixed with plastic and used as feedstock in a 3printer, which printed a model of the bunny.
A second use, for the privacy-minded, could be steganography—the art of concealing information within something apparently innocuous . Their most futuristic idea is an entire world full of objects which, like biological life, contain all the information needed to make copies of themselves in every part of their structure. Drs Erlich and Grass have dubbed their technology the “of things”, and it is certainly a clever idea. But the next job might be to come up with a snappier name.
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