Scientists in the Unitied states claims that they have developed the first "biological computer" which is been made from biomolecules & can decipher images encrypted on DNA chips. A group of scientists from Scripps Research Institute in California & Technion-Israel Institute of Technology claims that they created the biological computing system using bio-molecules, 'Angewandte Chemie' one of the leading journal reported.
When a suitable software was applied to the biological computer in the research, the reserch team found that it is capable to decrypt, separately, fluorescent images of Scripps Research Institute & Technion logos. And the scientists led by Prof Ehud Keinan said, although the DNA which is been used for the encryption in past, this is the first experimental demonstration of a molecular cryptosystem of images based on DNA computing.He also added that "In contrast to the electronic computers that is being used now, there are the computing machines in which all four components are nothing but the molecules.
For example, all biological systems & even the entire living organisms in the world are such computers. Every one of us is a biomolecular computer, a machine in which all four components are molecules that 'talk' to one another logically".
The hardware part and the software part in these devices, Keinan notes, are complex biological molecules that activate one another to carry out some of the predetermined chemical work.The input to this computer is a molecule that undergoes specific & predetermined changes, which follows a specific set of rules that is the software, and the output of this is the chemical computation process is another well-defined molecule.
Added Keinan in a statment: "Our biological computing device is based on the 75-year-old design by the English mathematician, cryptanalyst, and computer scientist Alan Turing."
"This computer is being built by combining chemical components into a single solution in a tube. Various amounts of small DNA molecules are mixed in solution with selected DNA enzymes and ATP. The latter is used as energy source of the device.
Scientists said "It's a very clear solution -- you cannot see anything. The molecules start interacting one another and we step back and watch what happens next. And by tinkering with the type of DNA and enzymes in the mix, researchers can finetune the process to a desired result,".
Source : Scripps Research Institute in California & Technion-Israel Institute of Technology