Navigation Links
New magnetic separation technique might detect multiple pathogens at once
Date:10/29/2007

DURHAM, N.C. -- A magnetic separation technique developed by researchers at Duke University's Pratt School of Engineering and Purdue University makes it relatively simple to sort through beads hundreds of times smaller than the period at the end of this sentence.

The method could lead to new technologies for medical or environmental testing, according to the researchers. For example, specially coated magnetic particles designed to attract particular viruses or bacteria might be used in tailored combinations to simultaneously test for multiple infectious pathogens in a blood or water sample.

Benjamin Yellen, assistant professor of mechanical engineering and materials science at Duke, and Gil Lee, associate professor of chemical engineering at Purdue, report their findings in the December issue of the journal Lab on a Chip (see http://tinyurl.com/3aayh8).

"If there were five viruses that a patient might have been exposed to, you could potentially develop a technique to look for those five viruses all at the same time," Yellen said. In principle, such a test could be done with just a single drop of blood, as long as there was virus in the sample.

As an initial demonstration of the concept, the researchers attached two "model pathogens," a baker's yeast and a soil bacterium, to magnetic beads, and used their technique to selectively isolate them.

The magnetic separation method, which the researchers call magnetophoresis, uses a rotating magnetic field and a microchip containing an array of miniature magnets to separate tiny magnetic beads based on their size within a matter of minutes.

The physics behind the technique is as interesting as its potential applications, Yellen added. "The method causes certain particles to become essentially immobile -- just jittering back and forth -- while others move off the chip where they can be isolated. It implies that we could ac
'/>"/>

Contact: Kendall Morgan
kendall.morgan@duke.edu
919-660-8414
Duke University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Overbearing colored light may reveal a second mechanism by which birds interpret magnetic signals
2. Bacteria which sense the Earths magnetic field
3. Magnetic probe successfully tracks implanted cells in cancer patients
4. Magnetic system could be key to surgery without scars
5. Magnetic computer sensors may help study biomolecules
6. Rensselaer researchers develop approach that predicts protein separation behavior
7. Researchers to develop active nanoscale surfaces for biological separations
8. Einsteins tea leaves inspire new blood separation technique
9. New Technique for Tracking Gene Regulators
10. Live Recombinant Adenovirus Vaccine Technique Explored
11. New lab technique identifies high levels of pathogens in therapy pool
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/18/2014)... Berlin, 19th October 2014 Psychological stress and stress-related ... for aging-related diseases, but the molecular mechanisms ... mechanisms may contribute to the development of ... treatments for these devastating diseases. This work ... Neuropsychopharmacology congress in Berlin., Now an international ...
(Date:10/17/2014)... – Accurate knowledge regarding Ebola is critical and pertinent ... of hazardous global outbreak and epidemic. The Journal, ... a special issue, Ebola Virus and Public Health, to ... knowledge in this critical societal moment. , On ... Ebola for Clinicians . The primer was prepared by ...
(Date:10/17/2014)... German . To ... treating overdoses, doctors are often limited to supportive therapy such ... a combination of drugs involved. So what can be done ... pills? ETH professor Jean-Christophe Leroux from the Institute of Pharmaceutical ... this question. "The task was to develop an agent that ...
Breaking Biology News(10 mins):Researchers find why depression and aging linked to increased disease risk 2Emergency aid for overdoses 2Emergency aid for overdoses 3
... have come under scrutiny lately due to adverse cardiovascular ... and rat models, researchers reveal another adverse effect of ... effect is independent of the COX-2 enzyme. ... the heart rate of Drosophila, a good model for ...
... publisher of medical and scientific books and journals, ... Press content is immediately available on www.springerlink.com ... journals and more than 22,000 eBooks. Beginning with ... may purchase Humana Press journals through Springer. All ...
... restraining elderly residents and giving them fewer sleeping pills ... 21 nursing home units published in the January issue ... led by the Karolinska Institutet, Sweden, analysed 2,343 reported ... out how they related to fall risk assessments and ...
Cached Biology News:Humana Press journals now available on SpringerLink 2Selective restraints and reduced medication could reduce nursing home falls says 4-year study 2
(Date:10/20/2014)... 2014 Local veterinary surgeon, Dr. Tim ... study of donor stem cells for dogs with osteoarthritis. ... and has performed clinical stem cell therapy for 7 ... determine if a single injection of donor stem cells ... reduce pain and inflammation in the treated joints. ...
(Date:10/19/2014)... The Asian Automatic patient billing report ... and forecast of revenue. The Automatic patient billing market ... million by 2018, at a developing CAGR of 7.2% ... of the Asian Automatic patient billing market, to get ... provides a glimpse of the segmentation of this market ...
(Date:10/19/2014)... 2014 According to market research ... WLAN Controllers; Wireless gateways)]- Global Advancements, Forecasts and ... global Outdoor Wi-Fi market with analysis and forecasting ... also identifies the drivers and the restrains for ... opportunities and challenges. , Browse 65 market data ...
(Date:10/18/2014)... The Asia-Pacific hardware encryption display market report defines and ... forecast of revenue. This market was valued $5,154.0 million ... by 2018, at a CAGR of 58.4% from 2013 ... Asia-Pacific hardware encryption market report, to get an idea ... glimpse of the segmentation of the market, and is ...
Breaking Biology Technology:Cascade Veterinary Referral Center Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 2The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 3Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 2Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 3Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 4The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 3
... November 2, 2011 In preparation for ... Lupus drug in 50 years, Human Genome Sciences (HGS) ... its newly formed European commercial sales team. The company ... of use, flexibility, mobility, industry-specific functionality, speed, and low ...
... month,s edition of Physics World, Paul Blom and Ton ... a way of creating thin, flexible sheets of organic ... process. These bendable materials could oust the ... our surroundings, being used for everything from lighting tiles ...
... Inc., a California based biotech company, announced today ... from the United States Patent and Trademark Office ... (application 10/705,109).  The Notice allowed 17 claims for ... using libraries of antibodies.  This method has several ...
Cached Biology Technology:Human Genome Sciences Europe Moves to the Cloud With Veeva CRM to Support New Lupus Treatment 2Human Genome Sciences Europe Moves to the Cloud With Veeva CRM to Support New Lupus Treatment 3Researchers roll out a new form of lighting 2