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:: Posted by American Biotechnologist on 03-26-2012
As hard as we try, we just can’t beat nature at creating efficient and amazing technologies.
In a fascinating feat of science, University of Washington scientists have created a tiny, nanoscale DNA sequencer that is capable of sequencing DNA strands of 42 to 53 nucleotides at a reasonable rate and at a fraction of the cost of conventional sequencing.
The biological sequencer consists of a mycobacterium nanopore placed in a membrane and surrounded by potassium-chloride solution. The DNA strand is pulled through the nanopore by phi29 DNA polymerase, an enzyme associated with replication of the phi29 virus. As the nucleotides pass through the nanopore, a small voltage is applied to create an ion current flowing through the nanopore whose electrical signature changes depending on the type of nucleotide traveling through the nanopore.
:: Posted by American Biotechnologist on 02-16-2012
In a very interesting study on Principle Investigator demographics, Dr. Sally Rockey, Director of Extramural Research at the NIH, found that over the last 32 years the average age distribution of NIH principle investigators has increased significantly. Watch the video below to see a shocking visual representation of the data. As a note to our PI population, although hearing loss is common in the elderly, your inability to hear what’s being said in this video is not a sign of aging. The video does not have any sound!
:: Posted by American Biotechnologist on 12-29-2011
What is the connection between science cartoons, mitochondrial tweezers and Elizabeth Taylor’s eyes? If you guessed that they are all on the list of top 10 American Biotechonologist posts for 2011 you’d be right!
Our goal is to have fun, learn something and spread some scientific love. We hope that we have fulfilled our mission in 2011 and we look forward to a great 2012. Below is our top 10 of 2011. Feel free to comment and to let us know what you’d like to see more of (or less of) in the coming year.