Navigation Links
New system would use rotating magnetic field to detect pathogens
Date:10/29/2007

Lee said. "One of the things we've been working on for quite a long time is to identify many different pathogens simultaneously."

Such an innovation represents a powerful new tool for medical diagnostics.

"When you walk into a doctor's office, the problem is that it could be one of five or six different pathogens giving you the symptoms," Lee said. "The doctor cannot determine which pathogen you have, so they simply give you a broad-spectrum antibiotic or tell you to go home and get some rest. There clearly is a need for technology that can recognize multiple pathogens simultaneously and at very low levels. It is likely they will be chip-based technologies that are easy to implement in medical environments."

The particles are said to move in a "non-linear" fashion because their motion does not simply increase as the speed of the rotating magnetic field increases.

"There is a surprising effect where at some point the particles stop moving due to their size or what they are attached to, and we can use this effect to our advantage," Lee said. "This effect will allow us to quickly sort through a million particles and say that one's got a certain bacterium on it, that one's got a virus on it, and so on."

The disks are aligned so that their poles point in the same direction. The particles are drawn across the chip as they are attracted by the magnetic fields emanating from the poles and resulting from the external rotating magnetic field.

Different size particles have different "critical frequencies," which means they are moved across the chip by rotating the external magnetic field at specific speeds matching those frequencies.

"So, at a certain frequency, you will see larger particles moving and smaller particles just sort of jitter back and forth," Lee said.

This frequency is higher for larger particles than it is for smaller particles, so speeding up and slowing down the rotation of the external m
'/>"/>

Contact: Emil Venere
venere@purdue.edu
765-494-4709
Purdue University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Genes In The Interferon System Important In Systemic Lupus Erythematosus
2. Fox Chase Cancer Center scientists identify immune-system mutation
3. NYU Study Reveals How Brains Immune System Fights Viral Encephalitis
4. Transport System Smuggles Medicines Into Brain
5. Open microfluidic and nanofluidic systems
6. Studies reveal methods viruses use to sidestep immune system
7. Alcohols effects on gene expression in the central nervous system
8. Jumping gene helps explain immune systems abilities
9. PANTHER Protein Classification System Database 5.0
10. White blood cell waste disposal system plays critical regulatory role
11. Applied Biosystems Introduces Advanced Gene Expression Service Provider Program
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... Jan. 22, 2015 Research and Markets ... the "Global Wearable Technologies Market and Applications, ... Trends and Forecast 2014-2020" report to their ... smart devices that can be worn on the ...
(Date:12/22/2014)... Inc. (NASDAQ: NXTD and NXTDW) ("NXT-ID" or ... mobile commerce market, announces it has retained famous pickpocket, entertainer ... International CES debut of the Wocket™ biometric smart wallet.  ... NXT-ID booth January 6th and 7 th , 2015, demonstrating ...
(Date:12/19/2014)... DUBLIN , Dec. 18, 2014 Research and Markets ... "Micro Market Monitor: North America Perimeter Security Systems Market" ... http://photos.prnewswire.com/prnh/20130307/600769 The North American perimeter security market ... 2014 to 2019. Although the U.S. market holds a larger ...
Breaking Biology News(10 mins):Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 4Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 3
... short- and long-term fisheries benefits could have prevented the ... is the last best chance for tuna, says University ... must act as if future generations of people are ... says Sumaila, who is presenting his findings with UBC ...
... Climate change is rapidly transforming the worlds oceans ... altering atmospheric and oceanic circulation, reported a panel of ... Advancement of Science (AAAS) annual meeting in Boston. ... sense of complacency about potential impacts from global climate ...
... , Sharks are disappearing from the worlds oceans. The numbers ... half due to increased demand for shark fins and meat, ... where millions of sharks are taken as bycatch each year. ... assessed by the World Conservation Union (IUCN), which is widely ...
Cached Biology News:UBC scientist invokes future generations to save tuna populations from collapse 2Climate change has major impact on oceans 2Climate change has major impact on oceans 3Climate change has major impact on oceans 4Ocean's fiercest predators now vulnerable to extinction 2
(Date:1/22/2015)... BOSTON , Jan. 22, 2015  Transwestern | RBJ today ... feet of office space for Shire a leading biopharmaceutical company, ... . Transwestern | RBJ,s Robert Richards , president, and ... the lease for the entire five-floor building at 95 Hayden ...
(Date:1/22/2015)... RI (PRWEB) January 22, 2015 Protocol ... , The growing team of brand-neutral, independent consultants, Protocol ... Philip Rogers explained that over the years, his company ... , Moroso, Town of Plainfield, as well as others. ...
(Date:1/22/2015)... MA (PRWEB) January 22, 2015 zFlo ... is pleased to announce an exciting product from a new ... motion analysis solutions over the past 15 years, with offerings ... Most recently, their 3D IMU system (inertial measurement unit), iSen, ...
(Date:1/22/2015)... 2015 Selexis SA, a serial innovation ... Banks (RCBs) used for drug discovery to commercial manufacturing, ... include Next-Generation Sequencing (NGS) data packages. The ... manufacturing by ensuring the integrity of the gene, validation ...
Breaking Biology Technology:Transwestern?RBJ Advises Shire in 202,000 SF Lease, Creating Boston's Largest Suburban Biotech Campus 2Protocol Networks Brings Independent Technology Consulting to the Constitution State 23D Motion Capture Just Got Easy 2Selexis Generated Research Cell Banks Now Fully Sequenced Using Next-Generation Sequencing 2
... caprotec bioanalytics GmbH, a privately held ... (CCMS) platform technology for the analysis of small molecule ... EUR 1 million ($1.4 M) to its Series B ... 5 million ($7.2 M). The capital increase was fully ...
... Laboratories is pleased to announce that it has been ... represent the United Kingdom in the prestigious 2011 awards programme. ... of 25 Country Representatives and will now compete for a ... recognition of Trimega,s pioneering use of dual testing of hair ...
... Cord Blood America, Inc . (OTC BB: CBAI, CBAID) ... by 80 percent of its shareholders voting in a recent proxy ... 2011. The one for one hundred reverse split reduces ... shares. A "D" will be placed on the ticker ...
Cached Biology Technology:caprotec bioanalytics Increases Series B Financing in Second Closing to EUR 5 Million 2Trimega Laboratories Honoured to Represent UK at the European Business Awards 2Trimega Laboratories Honoured to Represent UK at the European Business Awards 3
... nmol (individual) with sequence siTrio siRNA ... to your target gene of interestis our most ... more than 75% knockdown of your target gene ... for transfection and confirmation of optimal transfection with ...
... cocktail of 3 siRNAs specifically targeted to ... popular product. The siTrio reagent guarantees you ... target gene when used under standard conditions ... of optimal transfection with one of B-Bridges ...
... Vitamin D kit is an enzymeimmunoassay ... 25-hydroxyvitamin D (25-OH D) and other ... plasma. Our patented DIRECT assay technology ... and centrifugation and therefore facilitates automation ...
... is a complete assay system for the ... human serum or plasma. The assay incorporates ... the IDS 1,25D RIA followed by quantitation ... ready to use reagents, no organic or ...
Biology Products: