Harvard researchers invented a method to encode and decode binary information in fluorescent dyes that can be printed in patterns using a simple inkjet printer. A cheap, durable, and tamper-proof storage method that just might solve our hard drive problems.
Optical drives, flash memory,: there are many media for storing data Said, as opposed to analog, of the representation of data or physical quantities by means of characters – generally numbers – and also systems , devices or methods employing this … . But these storage devices have several drawbacks: (about 20 years), small size, sensitivity to external conditions (Physicists qualify heat as d thermal energy. In the international system, it is therefore measured in joules (J). Heat corresponds more precisely to a transfer rt … , water …), input in to work and vulnerability to hacking. A team of researchers from Harvard University has invented a revolutionary system for storing digital data (text, images, videos …) thanks to The so-called simple covalent bond … stored in which is then printed as a pattern. secret message!
Data stored as pixels
The system uses a mixture of seven fluorescent dyes available in the commerce. Each number, letter and pixel therefore corresponds to a point of nuance …
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“ This method provides access to low cost data storage , says Amit Nagarkar, lead author of the article published in
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Store digital data on molecules
In 2016, CNRS researchers had already succeeded in, representing 0’s and 1’s. But the process is much more laborious, because it is necessary to synthesize the released Molecules and printing is very slow. In 2019, another team from Harvard University managed to store (a set of 12 oligopeptides). The latter relied on the of each molecule to encode and decode information. The new dye-based method is faster to implement in reading than any other method, argues Amit Nagarkar’s team.
The explosion of volume of data in the world
In 2010, the world had only two zettabytes of digital data, or the equivalent of two billion terabytes. We are now at over 47 zettabytes and, according to, the of data will reach 2,142 zettabytes in 2035. However, the data centers used to store this data are already a real : it is estimated that they consume around , or around 1% of global electricity consumption. “ Alternative data storage methods like the dye-based one will therefore gain more and more importance in the 21st century”, concludes Amit Nagarkar.