DNA Hard Disk. How Stuff Works



Not possible to see now because it is not available in shops. It is a future reality that may emerge as DNA based microprocessor. DNA based computing is an emerging technology using the biomolecule DNA as the data storage molecule. It is possible since DNA is doing data storage in the form of genetic information. If DNA computers emerge, it can store billions of times more data than the present computer. The DNA molecule of genes has the potential to perform calculations many times faster than the present microprocessors. By using the Nanotechnology, it is possible to create Nano computers to replace the Silicon based computers.

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Can we use DNA Hard Disk? Fact File 41



Not possible now because it is not available in shops. It is a future reality that may emerge as DNA based microprocessor. DNA based computing is an emerging technology using the biomolecule DNA as the data storage molecule. It is possible since DNA is doing data storage in the form of genetic information. If DNA computers emerge, it can store billions of times more data than the present computer. The DNA molecule of genes has the potential to perform calculations many times faster than the present microprocessors. By using the Nanotechnology, it is possible to create Nano computers to replace the Silicon based computers.

The idea of DNA computer came from Leonard Adelman, a computer scientist at the University of South California in 1994 to solve complex mathematical problems. The first DNA computers are unlikely to feature word processing, e-mailing and solitaire programs. Unlike conventional computers, DNA computers perform calculations parallel to other calculations. Conventional computers operate linearly, taking on tasks one at a time. It is parallel computing that allows DNA to solve complex mathematical problems in hours, whereas it might take electrical computers hundreds of years to complete them.

DNA Computing is the computational technology that uses the biomolecule DNA in the place of silicon based chips.DNA computing is otherwise known as the Bio molecular computing and is a fast growing interdisciplinary field that uses molecular biology and computer techniques in research and bio informatics areas.

The DNA computing technique was developed by Leonard Adleman of the University of South California in 1994.In 2002 a programmable bio computing machine was developed using DNA as the major element. In 2004, a DNA computer was designed to study the changes in cancerous cells. In 2009 a bio computer coupled with silicon chips was introduced which was based on enzyme systems and silicon chips. This marked great advancement in the field of Synthetic biology to use integrated systems of biological molecules and electronic chips.

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Hitting 2,00000


The inspiration behind this blog was a mail from WordPress on April 3, 2010 inviting me to start a blog in the 3 GB free space they are providing. After registering the domain, I was in dilemma about the content. After a long thought, I decided to free my electronics and biology contents sleeping well in my PC’s hard disk. The Academic Blog started growing slowly with … Continue reading Hitting 2,00000

Electroporation


Electroporation is the artificial means of DNA transfer into the cells using an electrical field. It is defined as the use of electrical field to reversibly form micropores in the cell membrane. It is relatively new, simple and rapid technique to introduce DNA in a wide variety of cells. This technique is based on the original observation of Zimmermann in 1983 that high current pulses can induce cell membranes to fuse.

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Nanoball Sequencing


Nanoball Sequencing is the advanced form of DNA sequencing used to determine the entire gene sequence of an organism. The DNA Nanoball sequencing technique uses the Rolling Circle model of bacterial replication to convert the DNA of genes into Nanoballs. Fluorescent probes are used to bind with the complementary sequences, then these markers are used to locate the sequence in the DNA template. DNA Nanoball technique allows sequencing large number of DNA segments very fast at low cost. DNA Nanoball sequencing is a very good technique for identifying Mutations in genes and Mendelian disorders.

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Helicobacter pylori


Helicobacter is a pathogenic gram negative bacterium that inhabits the inner lining of human stomach and causes inflammation and ulcers. Majority of persons infected with H.pylori remains asymptomatic till the symptoms appear. Originally this bacterium was named as Campylobacter pyloridis and later placed in the genus Helicobacter. Its species name is given as pylori since it inhabits the Pylorus which is the opening of stomach into the duodenum.
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Peptide Computing


Peptide Computing refers to the form of model computing using Peptides and Molecular biology instead of the common silicon based chip technology. Peptide Computing rely on the fact that Antibodies show affinity towards Peptides and Proteins. Like DNA computing, Peptide computing uses the interaction between the peptide chains and antibodies.

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