Latest Bio Computer Decipherable DNA Image

According to the American Physicist Organization Network, scientists at the Scripps Research Institute in California and the Institute of Technology in Israel developed a biological computer that can now be used to decipher encrypted images stored in DNA chips. This is the first demonstration of a molecular image cryptography system based on DNA computation. Related papers were published in the latest issue of Applied Chemistry.

The electronic computer consists of hardware, software, input and output. The input and output are electronic signals. The hardware is a complex combination of various metals, plastics, wires, and transistors. The software is a series of machine instructions in the form of electronic signals. The four parts of the biological computer are all molecules. All biological systems and even the entire organic biological community and everyone is a biological molecular computer. The hardware and software are complex biological molecules, and the molecules can logically "talk" to each other. ". They activate each other and perform some predetermined chemical reaction. The input is a molecule that has undergone a special predetermined change, following a set of special rules (software). The output of this chemical calculation process is another well-defined molecule.

The newly developed biological computer is to connect chemical components and a tube containing a solution containing various different small DNA molecules, selected DNA enzymes and ATP (adenosine triphosphate). "It's a clear solution. You don't see anything," said Professor Iohud Conan, who heads the research at the Israeli Institute of Technology. "When molecules start to interact, we can wait for the results. You can also adjust the mix. The DNA and DNA enzymes in the solution change the process to get the desired result."

The biological computer was designed according to the Turing machine's model. The operation of the Turing machine is very similar to the DNA chain. Reading starts from one letter to another, performing four steps at each site: reading the letter; replacing the letter with another letter; changing its internal form; moving to the next position. An instruction list is a translation rule or translation software that indicates these operations. "Our device is a simplified version of the Turing machine." Conan said.

Conan also pointed out that for traditional computing tasks, computers are faster and more reliable, and the main advantage of biocomputers is their biological characteristics. People can store large amounts of information encrypted in DNA chips. Although biological computers are slower than computers, they can process trillions of chemical steps in parallel, making the overall calculation process very fast. "This technology allows us to print millions of pixels in a single chip. Once encrypted, this chip can store images in astronomical numbers."

In addition, this device can directly interact with biological systems and even living organic organisms, because no interface is required between the four components of the molecular computer. The molecules in the solution will follow a programmed procedure in a waterfall-like manner. chemical reaction.

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