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Details of Bio-holographic Memory

Using the laser in order to record given in proteins microstacks, investigators of the University of Connecticut have shown as it will be possible to produce riscrivibili bio-holographic memories. The holographic memory instead stores the data in three dimensions that in two and is in a position to rendering the access to the data faster hundred of times. The first systems to holographic memory, commercialize you of recent, do not concur but the riscittura.

Investigators of the University of Connecticut, guide to you from Jeffrey Stuart, to head of the Nanobionics Research Center to the Institute of Materials Science of the university, have based their system of holographic storaggio on proteins modified of microorganisms that s they commonly find in the salata water swamps: enough to illuminate proteins with blue light in order to cancel all the data he stores to you. Draft of a biotechnology that takes advantage of an evolutionary adaptation of the microbe "Halobacterium salinarum", that it produces an sensitive proteica membrane to the light when the oxygen concentrations diminish. the protein, known like "batteriorodopsina", helps the organism to convert the sunlight in energy. After that it has absorbed the light, the protein the proceeded one by means of a series of chemical states, rilascia a proton, autoresetta and repeats the cycle: in one of these states, form of ologrammi (the entire hard cycle from the 10 to the 20 milliseconds).

The investigators have uncovered who illuminating the protein with red light when she is close to the end of its chemical cycle can force it in one be useful known like "Q state" that can last for years. The problem is that this state is difficult to produce naturally. Therefore, some biologi molecular of the University of Connecticut, guide to you from Robert Birge, of the chemistry department, are manipulating the Halobacterium genetically salinarum for indurlo producing proteins that enter more easy in the Q state.

For being able to use it as it leave of a holographic system, the poteina comes suspended in a polymer gel. A green laser comes divided in two and in one of it makes us of light come codifies the data to you. The two make us of light come then recombine to you with in the gel so as to to form in proteins a pattern of interference that stores the data. In order to read the data, the system sendes a single one, weak person, bundle of red light laser through the pattern of interference. A light bundle blue laser instead cancels the data.

Tim Harvey di Starzent, a company financed from the LAST Defense Advanced Research Projects Agency (DARPA), that it is developing miniums-drive holographic, says: "the holographic devices you of memory base on proteins offer to you upgrade them in order to realize riscrivibili memories until 10 million times". If the investigators will find just varying the genetic one, will be possible to produce large quantitati to you of proteins modified to low cost. The devices you of holographic memory in a generalized manner will concur to transfer rows from 30 gigabtye, containing as an example a film to high definition, in less than 10 second ones.