DNA may soon be used for storage
Researchers have created a way to store data in the form
of DNA, which can last for tens of thousands of years.
The encoding method makes it possible to store at least
100 million hours of high-definition video in about a cup of DNA, the
researchers said in a paper published in the journal Nature this week.
The researchers, from UK-based EMBL-European
Bioinformatics Institute (EMBL-EBI), claimed to have stored encoded versions of
an .mp3 of Martin Luther King's "I Have a Dream" speech, along with a
.jpg photo of EMBL-EBI and several text files.
"We already know that DNA is a robust way to store
information because we can extract it from wooly mammoth bones, which date back
tens of thousands of years, and make sense of it," Nick Goldman, co-author
of the study at EMBL-EBI, said in a statement. "It's also incredibly
small, dense and does not need any power for storage, so shipping and keeping
it is easy."
Reading DNA is fairly straightforward, but writing it has
been a major hurdle. There are two challenges: First, using current methods, it
is only possible to manufacture DNA in short strings. Secondly, both writing
and reading DNA are prone to errors, particularly when the same DNA letter is
repeated.
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