14-05-2011, 10:55 AM
DNA computing new.ppt (Size: 432 KB / Downloads: 131)
DNA Computing
Introduction
DNA computing is a novel technology that seeks to capitalize on the enormous informational capacity of DNA, biological molecules that can store huge amounts of information and are able to perform operations similar to that of a computer, through the deployment of enzymes, biological catalysts that act like software to execute desired operations.
The appeal of DNA computing lies in the fact that DNA molecules can store far more information than any existing conventional computer chip. Also, utilizing DNA for complex computation can be much faster than utilizing a conventional computer. The ability to harness this computational power shall determine the fate of next generation of computing.
DNA computers have the potential to take computing to new levels,
picking up where Moore’s law leave off.
The several advantages of DNA over silicon are:
DNA molecules have a potential to store extensively large amount
of information. It has been estimated that a gram of dried DNA can hold as
much information as a trillion CD’s. More than 10 trillion DNA molecules
can fit into an area of 1 cubic centimeter. With this small amount of DNA
a computer would be able to hold 10 terabytes of data, and perform 10
trillion calculations at a time.
What is DNA? (Deoxyribo Nucleic Acid)
Structure Of DNA
Structure of DNA
Scope and recent updates
Scientists have taken DNA from the free-floating world of the test tube and anchored it securely to a surface of glass and gold. University of Wiscosnin-Madison researchers have developed a thin, gold-coated plate of glass about an inch square. They believe it is the optimum working surface on which they can attach trillions of strands of DNA. Putting DNA computing on a solid surface greatly simplifies the complex and repetitive steps previously used in rudimentary DNA computers.
Importantly it takes DNA out of the test tube and puts it on a solid surface, making the technology simpler, more accessible and more amenable to the development of large DNA computers capable of tackling the kind of complex problems that conventional computers now handle routinely. Researchers believe that by the year 2010 the first DNA chip will be commercially available.
Applications In Airlines to map efficient routes Biomedical & Pharmaceutical Information Security Cryptography
Advantages Dis - advantages
Parallel Processing
Easily solve complex problems
No power requirement
Cost-effective method
Require human assistance
Produce errors due to unwanted chemical reactions
Test tube environment is far from practical environment
Human manipulation needed