Researchers Store children’s song It’s a Small World on bacteria and recovered it from the 100th Generation
Researchers from Pacific Northwest National Laboratory used artificial DNA sequences to encode portions of the text of the children’s song It’s a Small World, added the sequences to bacteria DNA, allowed the bacteria to multiply, then extracted the message part of a DNA strand and retrieved the encoded information, Bliss ha just the kind of solution I need to store all my digital music when my ipod gets full.
Well may be not so easy since there are some potential problems the memory capacity would be huge because each bacteria in a colony could encode different information; it is very difficult to select a single bacteria from a colony, well that cant good, But I like the concept pretty futuristic
These DNA messages, each about 150 bases long, were inserted into bacteria such as E. coliDeinococcus radiodurans. Because DNA is passed down through generations of living organisms, information stored this way should survive for as long as the line of organisms survives, said Pak Wong, a chief scientist at the Pacific Northwest National Laboratory. DNA is made up of four bases attached to a sugar-phosphate backbone. Different sequences of the four bases can represent digital information
Considering that a milliliter of liquid can contain up to 10 billion bacteria, the potential capacity of bacterial-based DNA memory is enormous
The researchers let the bacteria propagate for 100 generations, then retrieved the encoded information by extracting the message part of the DNA strand from the youngest generation and reading it via polymerase chain reaction, a laboratory procedure that took about two hours and involved a series of heating and cooling cycles.
The researchers used seven different bacteria to store and retrieve seven DNA fragments that ranged from 57 to 99 base pairs long and encoded text from the children’s song