DNA computer

In addition to the current Shanghai Jiaotong University Bio-X Center, the international community has not yet said what scientists successfully developed a DNA computer or embryonic form. "The expert said. He also produced the Israeli Weizmann Institute and the Shanghai Jiaotong University thesis. The former published in 2001 in the United Kingdom "Nature" magazine, entitled "programmable calculator can be self-regulatory elements," the latter released in this year's China, "Science Bulletin", the title used for "running on the surface of the bead Programmable DNA computer. " "Taken by the use of the materials and methods are the same, even the double-stranded DNA molecule, variable in the design and enter symbols such details are the same. However, the latter concept is unclear, there are many mistakes in the article, the author does not seem to have read Israeli scientists to understand the papers and their research ideas. " "Almost even charts and symbols are the same." In his two papers on a painting Yonghong Bi-Loop. Some colleagues even to this successful outcome is really doubt it. "Bead is a separate DNA molecules purpose of the materials, through its research staff to select the response after the DNA fragments. Shanghai Jiaotong University show that they tried to work in computing forward to a solid surface, but the final papers back to the solution of the test tube . " They said that Israeli scientists is "Calculator (Computing Machine)" instead of "computer (Computer)", because they are aware of their inventions and does not go beyond China's calculations, the West or hand-cranked computer slide rules. What is the "DNA computer" » Chair Professor of Huazhong University of Science and Technology Xu Jin answer is: DNA computing model for the design of the mechanism from the machine must also have input system, the output system, the computing system and a certain commonality. He stressed that absolutely can not pass a biochemical experiments to solve a specific problem called DNA computer. He said, DNA computers will undoubtedly go through the development of three stages: First test-tube stage to verify the feasibility of DNA computing principles and then stage a solid surface, this is a transitional stage, to overcome in the test tube of DNA molecules easily lost And difficult operation of the drawbacks is the final stage of chips, only after the chip, DNA computers to be practical. "DNA is still not sure what exactly is like the computer, it may be varied, but certainly is and advanced IT technology together." Jin Xu said. In theory, DNA computers have an ultra-large-scale parallel computing and ultra-low-power advantages, which allow scientists to "Moore's Law" after the termination of the development of information technology is full of expectations. DNA computer in an alarming speed before the operation, the current password system will also be completely meaningless. This means that any one country in the DNA computer for the first successful, it will in the field of military information will account for absolute leadership. Xu Jin said that at present the international community on DNA computing research and DNA computer has become a hot new scientific frontier, are greatly attracted biological engineering, computer science, mathematics, physics, chemistry, laser technology and information, and other scientists in the field . By the Human Genome Project to promote its research progress rapidly, "natural" and "science" almost every year on the DNA with the DNA computer calculation of research papers, other authoritative international magazine not only published the first DNA computer-related aspects of academic papers, But also occasionally published album. "But the development of DNA computer is a very huge, highly cross-discipline, several generations of scientists to be the painstaking research is by no means overnight, a year two years thing. From the current technological development, it also from the practical Very far away. "Jin Xu said. According to Xu Jin, Huazhong University of Science and Technology Institute of Molecular Biology computer in China is a DNA computer research papers SCI most institutions. They will be the first to introduce DNA computer programming theory, and the establishment of a Chinese mathematician from the Valley-the "Chinese postman problem" of DNA computing model: a postman in his jurisdiction within the scope of how to choose the shortest way to the messenger. In addition, the CAS Dalian Institute of Chemical Physics, Shanghai Donghua University, Tsinghua University, Peking University and Beijing University of Technology, and other units are actively engaged in DNA computer research, "science" and "Chemistry and Computer Science Journal," "biological systems" , And other international publications have included them the papers. Xu Jin said cautiously, "We may come up with in recent years, a DNA computer model, it is still the