1 Introduction
Do you know DNA? The gene which could store information of inheritance.DNA has a double-helical structure with four chemical groups, nucleobases, which are arranged in a specific order to form genetic information that guides the growth and development of the organism.DNA storage technology is the use of synthetic DNA to store data such as text documents, pictures and sound files, followed by a complete reading technique.
2 Advantages
One of the significant advantages of DNA storage technology is its large capacity. DNA molecules are an incredibly dense storage medium, and 1 gram of DNA can store about 2 pats, which is equal to 300GB.
Using DNA to store data can save to thousands of years. Unlike storage media such as hard disks and tapes, DNA does not require frequent maintenance. As far as reading is concerned, DNA storage does not involve compatibility issues
Now the DNA storage
Picture 1 DNA structure
(cite: https://www.technologynetworks.com/genomics/lists/what-are-the-key-differences-between-dna-and-rna-296719)
3 Method
Therefore how could it be possible for storage process?
Picture 2 DNA storage progress
(cite:https://gss3.bdstatic.com/-Po3dSag_xI4khGkpoWK1HF6hhy/baike/c0%3Dbaike80%2C5%2C5%2C80%2C26/sign=651b5cbd8694a4c21e2eef796f9d70b0/4e4a20a4462309f723c110a0730e0cf3d6cad6d2.jpg)
(1)The DNA digital storage system developed by the researchers also uses these four-base “letters” to develop custom code that is completely different from the “language” used by the organism.
(2)When copying a computer file, the DNA digital storage system first translates the binary numbers in the hard disk information into custom code, and then creates the corresponding base sequence by means of a standard DNA synthesis machine. This sequence is not a long molecule, but multiple repeats, each carrying some index details, clarifying where each is located in the overall sequence.
(3)Although such a system is redundant, the advantage is that even if some fragments are destroyed, the data will not be lost. The standard device used by the Molecular Biology Laboratory (like this one)to read biological DNA can read information and present it on a computer screen.
