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

WEST LAFAYETTE, Ind. - Researchers at Purdue and Duke universities have developed a technique that uses a magnetic field to selectively separate tiny magnetic particles, representing a highly sensitive method for potentially diagnosing disease by testing samples from patients.

Because different pathogens could be attracted to specific-size magnetic particles and the new technique can selectively separate particles by size, the method could be used to diagnose the presence of many diseases in a single sample, said Gil Lee, a professor of chemical and biomedical engineering at Purdue.

The micron-size magnetic particles have been coated with antibodies that attract certain pathogens and are then mixed with blood samples from patients. A critical piece of the technology is a microchip containing an array of metal disks as wide as 5 microns, or millionths of a meter. The magnetic particles are dispersed in a liquid placed in a container housing the chip. The container is surrounded by three electromagnets energized in sequence to produce a rotating magnetic field.

As the magnetic field rotates, the particles move from one disk to another until they are separated from the rest of the sample. Rotating the magnetic field at specific speeds separates only particles of certain sizes, meaning pathogens attached to those particles would be separated from the sample by varying the rotation speed, Lee said.

In recent experiments, samples containing magnetic particles attached to yeast were placed inside the rotating magnetic field and separated from the rest of the samples. Findings are detailed in a research paper appearing online this month in Lab on a Chip magazine and in the December print edition of the publication. The paper was written by assistant professor Benjamin Yellen, graduate students Randall Erb and H. Son, and undergraduate student R. Hewlin Jr., all from Duke University's Department of Mechanical Engineering and Materials
'/>"/>

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:8/24/2015)...  Based on its recent analysis of the biometric products ... Biometrics Company of the Year Award. DERMALOG is the leading ... Africa . It has particularly gained prominence ... one of the largest biometric mass applications in the world, ... Bank of Nigeria with its biometric ...
(Date:8/20/2015)... SANTA CLARA, Calif. , Aug. 20, 2015 ... based company focused on improving the user experience ... voice and vision technologies, today announced that its ... and voice biometric authentication software to be ... Alliance tested TrulySecure for compliance with the FIDO ...
(Date:8/19/2015)... 19, 2015  VOXX International Corporation (Nasdaq: ... into a Definitive Agreement to purchase the assets, ... market leader EyeLock through an acquiring entity.  Upon ... controlling interest in the acquiring entity. The closing ... due diligence.  Expanding on its existing supply chain ...
Breaking Biology News(10 mins):Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 2Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 3Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 4Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 5Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 6TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 2TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 3TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 4TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 5VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 2VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 4VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 5
... that send water surging through swamps and marshes near rivers ... gas emissions from those affected wetlands, according to recent research ... of water through wetlands result in lower average emissions of ... the emissions from wetlands that receive a steady flow of ...
... California White Mountain Research Station, U.S. Forest Service ... Climate Research in Western Mountains will host a ... Fairgrounds in Bishop. The conference is entitled "Climate, ... bring together distinguished researchers from a variety of ...
... treat breast cancer or prevent its recurrence should think ... report. Genistein, a soy isoflavone that mimics the ... effectiveness of aromatase inhibitors, which are designed to reduce ... in some types of breast cancer. The new ...
Cached Biology News:Flooding might help lower gas emission from wetlands 2Flooding might help lower gas emission from wetlands 3The dietary supplement genistein can undermine breast cancer treatment 2The dietary supplement genistein can undermine breast cancer treatment 3
(Date:9/2/2015)... R.I. , Sept. 2, 2015  Neurotech ... been enrolled in the multicenter Phase 2 clinical ... the long-term treatment of recurrent subfoveal choroidal neovascularization ... NT-503 is a unique vascular endothelial growth factor ... ECT implant. "This landmark proof-of-concept study ...
(Date:9/2/2015)... ZIONA, Israel , September 2, 2015 ... BVXV) today announced the intent of the National Institute of ... Institutes of Health (NIH) within the Department of Health and ... to be held in the United States ... use of BiondVax,s universal flu vaccine candidate, Multimeric-001 (M-001), as ...
(Date:9/2/2015)... ... September 02, 2015 , ... The TS5-Q is ... commercial video content, to analysis of athletic performance. Producing high-resolution slow-motion video ... too quickly to process with the naked eye. , Slow motion sequences ...
(Date:9/1/2015)... , Sept. 1, 2015  ContraVir Pharmaceuticals, Inc. ... the development and commercialization of targeted antiviral therapies, announced ... Renshaw 17 th Annual Global Investment Conference sponsored ... September 8-10, 2015 at The St. Regis Hotel in ... James Sapirstein , Chief Executive Officer, will ...
Breaking Biology Technology:Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 2Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 3Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 4BiondVax Announces Intent to Launch a Phase 2 Trial in the United States in Collaboration with the U.S. National Institutes of Health 2BiondVax Announces Intent to Launch a Phase 2 Trial in the United States in Collaboration with the U.S. National Institutes of Health 3Fastec Introduces the Quad-HD TS5-Q High-Speed Camera 2Fastec Introduces the Quad-HD TS5-Q High-Speed Camera 3ContraVir to Present at Rodman & Renshaw 17th Annual Global Investment Conference 2
... Designation Process and Saves Lives, HARRISBURG, Pa., Aug. ... Web portal that will enable individuals to,sign up as ... driver,s,license or photo ID card is up for renewal ... Web portal, http://www.donatelife-pa.org, will link visitors to ...
... - Despite outcome, CEO Mark McDade to resign ... 20 PDL BioPharma, Inc.,(PDL) (Nasdaq: PDLI ... the company,s chief executive officer (CEO), Mark McDade,found ... breach of,fiduciary duty by McDade to corroborate the ...
... Fisher,Scientific Inc. (NYSE: TMO ) announced today ... and chief executive,officer, are adopting stock- trading programs ... the future sale of company stock. Mr.,Dekkers, who ... August,15-17, 2007, has adopted a plan for the ...
Cached Biology Technology:Web Portal Makes Organ Donation Easy 2PDL BioPharma Announces Internal CEO Investigation Found No Credible Evidence of Improper Personal Conduct or Breach of Fiduciary Duty 2PDL BioPharma Announces Internal CEO Investigation Found No Credible Evidence of Improper Personal Conduct or Breach of Fiduciary Duty 3PDL BioPharma Announces Internal CEO Investigation Found No Credible Evidence of Improper Personal Conduct or Breach of Fiduciary Duty 4Thermo Fisher Scientific Executive Officers Adopting SEC Rule 10b5-1 Trading Programs 2
... GelSpin Kit utilizes a silica based spin filter ... electrophoresis, the desired DNA band is cut from ... spin filter unit. The gel slice is melted ... the DNA is bound to the silica spin ...
... to HDAC4 - ChIP Grade HDAC4 ... mammalian histone deacetylases, which consists of 1084 ... highly similar to the deacetylase domain of ... between the nucleus and cytoplasm in a ...
... Vector is a derivative of the pAcHLT-A Vector ... fluorescent protein (BFP), followed by a 6xHis tag ... expressed as BFP-6xHis fusion proteins when cloned into ... Stu I, Sac I, Not I, Pst I, ...
Mouse monoclonal antibody to ALAS2 - aminolevulinate, delta-, synthase 2 (sideroblastic/hypochromic anemia)...
Biology Products: