Amit Nagarkar et al. developed a data storage system based on fluorescent dyes.
In the digital age, every byte of data needs to find its own stable "destination". For data storage systems, storage life is one of the most important issues, and its lifespan is usually only 20 years. The eurekalert.org website reported on October 13th local time that a team led by George Whitesides, a chemist at Harvard University , is trying to use an innovative dye to solve the lifespan problem of the storage system. Relevant research results were published in the journal "American Chemical Society Core Science".
In the new storage method, the researchers used a mixture of seven commercial fluorescent dyes to save data files. inkjet printer After dropping the dye, the microscope can detect and read the light of different wavelengths emitted by each dye. Finally, the researchers decode the binary information in the molecule into files, books, photos, or videos.
In theory, the dye storage system can store data for thousands of years. In contrast, storage media such as flash memory, Blu-ray Disc , and computer drives can only store information for up to 40 years (and are vulnerable to floods and hackers, and have high energy consumption). The paper author and postdoctoral researcher Amit Nagarkar said: "The dye storage system provides a cheap storage solution for archive data. It only needs the existing commercial inkjet printer and fluorescence microscope to complete the long-term storage of data." New The method is especially effective for long-term storage of regulated information (such as financial and legal records) and critical information (satellite data). Because it will not access the Internet, which is easily attacked by hackers, the production cost is relatively low, and it can only be read with a special microscope, and it no longer consumes energy after the recording is completed.
The mechanism of dye storage system is very simple: after dye molecules are dropped on the surface of epoxy resin ,It will be chemically combined with it, and then the information will be locked. In order to translate the information in different dyes, the researchers introduced the American Standard Code for Information Interchange. After the storage is completed, as long as the user knows the storage location of the dye, the binary information can be decoded with special equipment. The researchers said that in the dye storage system, the accuracy of reading information is as high as 99.6%; on the epoxy surface of 7.2 mm × 7.2 mm, they can record 1,405,542 bytes of digital information with dye.
Previously, the Whitesides team had tried to use peptides as storage for digital information, but the speed of reading and writing hindered its further development. In contrast, the dye storage system has excellent read and write speeds, and the average rates of writing and reading information are 128 bits/sec and 469 bits/sec, respectively. This created the record for the fastest reading speed of all molecular information storage methods.
Researchers believe that data storage methods similar to dye storage systems will become more and more important in the 21st century. Nagarkar said: "As human society transforms into a digital society, the amount of data that needs to be stored will increase exponentially. New data storage systems are promising in the future." Yu reviewer: Seamore Editor: Chen Zhihan
Journal source: "American Chemical Society Core Science"
Journal number: 2374-7943
Original link: https://www. /news-releases/931513
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