Category Archives: Transhuman News

Italy to DNA Test Your Dog #39;s Poo! - NEWSFLASH
The city of Naples, Italy, is going CSI to DNA test dog poo in the street to see who doesn #39;t pick up after their pooch! FUNKY TIME SHIRTS!! http://samtimenew...

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DNA Model
Rio Drahus.

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DNA Model - Video

Welcome to DNA Services of America
Start with DNA Services of America for accurate results. Visit. http://www.dnasoa.com/. Years from now you may not remember who did your DNA test and how muc...

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PUBLIC RELEASE DATE:

3-Mar-2014

Contact: Nathaniel Robinson nathaniel.d.robinson@liu.se 46-132-82212 Linkping University

Medical diagnoses and DNA sequencing can be made cheaper, faster and more reliable using a new miniaturized technique for gel electrophoresis based on conducting polymer materials, according to researchers at Linkping University in Sweden.

Gel electrophoresis is a process through which different proteins or DNA fragments are separated so that they can be identified and studied. Today, most separations require considerable manual work and are carried-out on large gels which require several hours to complete. The industry needs miniaturized systems capable of automatically performing a large number of separations simultaneously, and much more quickly.

PhD students Katarina Bengtsson and Sara Nilsson from the Transport and Separations Group at Linkping University have demonstrated a significant step toward miniaturized gel electrophoresis. Their finding recently published in the scientific journal PLoS ONE was achieved by developing conducting polymer materials to replace platinum electrodes that are traditionally used in gel electrophoresis systems. This advance allows the stationary metal electrodes fixed in electrophoresis equipment to be replaced. The plastic electrodes can then be included as part of a disposable cassette containing the separation gel. This eliminates cross-contamination between gels run in sequence. Other issues in electrophoresis are bubble formation and pH-changes caused by water electrolysis. PhD student Per Erlandsson has previously shown that the conducting polymer materials are able to be oxidized and reduced themselves, thereby eliminating the need to electrolyze water in electrokinetic systems.

"One of our strategies is to find ways to use these materials, developed for the printed electronics industry, in applications other than electronics and optoelectronics. We hope that this result will accelerate the automation and miniaturization of gel electrophoresis, which in turn can make medical diagnoses and DNA sequencing cheaper, faster, and more reliable," says Assoc. Prof. Nathaniel Robinson, leader of the research group, on their "work as a logical extension of previous studies on conducting polymer electrodes in electrokinetic systems."

The technology will be further developed by the university start-up company LunaMicro AB.

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Article: Conducting Polymer Electrodes for Gel Electrophoresis av Katarina Bengtsson, Sara Nilsson och Nathaniel D. Robinson. PLoS ONE open access February 2014. http://dx.doi.org/10.1371/journal.pone.0089416.

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Separation of DNA and proteins through improved gel electrophoresis

The Springfield (Mass.) Republican/March 4, 2014

SPRINGFIELD, Mass. (AP) Court documents in the 2011 stabbing death of a Chicopee woman show DNA evidence was key to an arrest made two years later, the Springfield Republican reports.

The state police investigators report was made public in district court Tuesday after the newspapers successful challenge to prosecutors efforts to impound it last fall.

Dennis Rosa-Roman, 23, was charged in November with the first-degree murder of 20-year-old Amanda Plasse in Chicopee. He has pleaded not guilty.

The Republican (http://bit.ly/1fYISU0 ) reported the documents, redacted to exclude some witnesses names and statements by Rosa-Roman, say Plasse had been the victim of a break-in not long before her death, and had told her boyfriend she believed the burglar was a neighbor she had telephoned and planned to confront.

The documents dont indicate why it took two years to make an arrest.

The investigators report said DNA from beneath Plasses fingernails was matched to a sample Rosa-Roman gave police when he was arrested. The report said he lived about four blocks from Plasse at the time she was killed.

The investigation drew controversy after a patrolman and a sergeant took cellphone photos at the crime scene and shared them with other officers. Then-Mayor Michael Bissonnette had ordered a review of police handling of the case.

It became an issue in the mayors race in which Bissonnette was defeated for re-election the same day Rosa-Roman was arrested.

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Documents: DNA key in 2011 Chicopee stabbing case