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, yet until now they've struggled to design a synthetic system that can store and perform tasks at the same time.
New research has now demonstrated it's possible to package and present DNA so it can manage both, providing a full suite of computing functions out of strings of nucleic acids. Specifically, we're talking about storing, reading, erasing, moving, and rewriting data, and handling these functions in programmable and repeatable ways, similar to how a conventional computer would operate.
Researchers from North Carolina State University and Johns Hopkins University demonstrated in experiments that their novel nucleic acid scaffold serves as proof of the versatility of'File deletion' was one operation demonstrated. form to be processed, or specific areas of DNA to be rewritten, without damaging the original DNA 'files' or the storage medium.
Even better, the branching dendricolloid scaffold helps preserve the DNA information as well, compared with polymers in solution. Accelerated aging analysis suggested strands stored on dendricolloids at a temperature of around 4 degrees Celsius would have a half-life of millennia. At lower temperatures, it could be millions of years.
Using a system like this, data that would fill up a thousand laptops can be reliably stored in a space the size of a pencil eraser, Keung says, allowing for the long-term storage of vast databases.saysWhile we're still a long way from these DNA computers finding widespread use, this shows that it can be done.
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