After three years of work and a total of 750 attempts, Jerome Bonnet and colleagues at Stanford University (USA) have succeeded in developing a system to encode, store and erase digital data in the genetic material of living cells. In practical terms, scientists have created the genetic equivalent of a "bit", the smallest unit of digital information that can be represented with two values, zero or one, off or on. In this case, we used DNA segments that are "worth zero if pointing in one direction and taken as a value in the opposite direction," the researchers say. Data can be read easily, since the sections of DNA have been previously modified to glow with green or red depending on their orientation. And since it is a non-volatile memory stores information without consuming energy.
Having the ability to program and store data into the DNA of cells promises to be a useful tool to study cancer, aging, development agency ... For example, the device would count how many times a cell divides, and well find out at what point they become cancerous.
Having the ability to program and store data into the DNA of cells promises to be a useful tool to study cancer, aging, development agency ... For example, the device would count how many times a cell divides, and well find out at what point they become cancerous.
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