Navigation Links
Magnetic mixing creates quite a stir
Date:10/29/2009

c particles suspended in the fluid form chains like strings of pearls. The chains start swirling around and that's what does the mixing. The particles are then removed magnetically, leaving a nice mixed-up liquid.

More technically, the new mixing method, which Jim calls vortex field mixing, subjects a suspension of microscopic, magnetizable particles to a magnetic field whose direction is constantly spinning in a motion similar to a spinning top as it is about to collapse on its side, but much faster. In this "vortex field" the particles assemble into countless microscopic chains that follow the field motion, stirring every nook and cranny of the fluid. The vortex field stirs the liquid vigorously, and surprising fluid effects are possible, such as a kind of washing machine agitation where the spinning direction alternates periodically.

Currently, Martin, Lauren Rohwer, and graduate intern Kyle Solis work with the vortex field mixing, among other projects. Their experimental report, recently appearing in the July issue of Physical Review, has generated interest, including a Physical Review Focus article and a Research Highlight in the September MRS Bulletin.

This type of magnetic mixing with particles that assemble into micro-stir bars isn't like the magnetic mixing done in high school chemistry class.

"In your high school chemistry class," Martin says "when you mixed a beaker of water on a stir plate, underneath the plate was a permanent magnet spinning around to make the stir bar spin. If that hidden magnet suddenly became twice as strong, the magnetic field would double but you wouldn't see any increase in the stirring at all.

"With our process," Martin said "if we make the magnetic field twice as strong, the stirring becomes four times as strong because the stronger field makes the particle chains longer."

With conventional stir-bar mixing you can increase the mixing torque by increasin
'/>"/>

Contact: Stephanie Holinka
slholin@sandia.gov
505-284-9227
DOE/Sandia National Laboratories
Source:Eurekalert  

0

GOOD

Page: 1 2 3

Related biology technology :

1. Researchers design new graphene-based, nanomaterial with magnetic properties
2. Researchers design new graphene-based, nano-material with magnetic properties
3. Unexpectedly long-range effects in advanced magnetic devices
4. Nanophysicists find unexpected magnetic effect
5. Capture of nanomagnetic fingerprints a boost for next-generation information storage media
6. Stereotaxis Showcases Advancements for Remote Magnetic Ablations
7. New Publications Show Noninvasive Magnetic Resonance-Guided Focused Ultrasound to be a Potentially Safe, Effective Pain-Relieving Treatment for Bone Metastases
8. New process creates 3-D nanostructures with magnetic materials
9. NIST/NIH micromagnets show promise as colorful smart tags for magnetic resonance imaging
10. SoluLinK Introduces NanoLink(TM) Streptavidin Magnetic Microspheres
11. Still River Systems Announces Operation of the Worlds Highest Magnetic Field Cyclotron
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Magnetic mixing creates quite a stir
(Date:5/21/2013)... Emerson Resources Inc. , a premier pharmaceutical ... Company’s Chief Executive Officer and Chairman of the Board, ... service. As part of Emerson Resources’ planned leadership succession ... as Dr. Signorino’s successor. , Dr. Signorino is ... a significant contribution to the field during his extensive ...
(Date:5/21/2013)... , May 21, 2013  Personal Genome Diagnostics ... its proprietary methodologies and expertise in genomic analysis ... targets in collaboration with Blueprint Medicines.  PGDx is ... identifying genomic alterations in tumors, and Blueprint Medicines ... inhibitors for a genetically defined patient population. ...
(Date:5/21/2013)... NANONEX CORPORATION, a pioneer and leading company in ... delivery and installation of a new nanoimprint lithography ... Japanese manufacturing company. , Nanonex’s ... tool that has the ability to process a ... Based on Nanonex inventions and proprietary technologies, including ...
(Date:5/21/2013)... 2013 Possible mold re-infestation in Guilemtte School ... a report from eagletribune.com posted May 14, 2013, the state ... result is positive, My Cleaning Products offered a tip ... , It was said in the Eagle Tribune report (5.14.13) ... campus sparked after a first-grade classroom was closed due to ...
Breaking Biology Technology:Emerson Resources Announces CEO Retirement and Appointment of Successor 2Emerson Resources Announces CEO Retirement and Appointment of Successor 3Personal Genome Diagnostics And Blueprint Medicines Form Collaboration to Identify Novel Kinase Targets 2Personal Genome Diagnostics And Blueprint Medicines Form Collaboration to Identify Novel Kinase Targets 3Nanonex Announces the Shipment and Installation of an Innovative Nanoimprint Lithography System for Fully Automated Manufacturing 2Possible Mold Re-infestation Gets Guilmette School Scheduled for Re-inspection, My Cleaning Products Offers Tip How to Kill Mold Safely If Inspection Turns Positive 2Possible Mold Re-infestation Gets Guilmette School Scheduled for Re-inspection, My Cleaning Products Offers Tip How to Kill Mold Safely If Inspection Turns Positive 3
... Corporation,s (Amex: ETC ) ("ETC" or the ... (3) additional BARA-MED(R) XD,Monoplace Hyperbaric Chambers to Comprehensive ... growing company who focuses,solely on initiating and operating ... a total of five (5) BARA-MED(R) XD chambers,from ...
... VIENNA, Va., Oct. 9 CEL-SCI Corporation,(NYSE: ... delivery of the new,manufacturing facility for its lead ... area, will produce the Multikine that,will be used ... first-line,therapy of previously untreated head and neck cancer ...
... Loan With Interest Payment Subsidy, BEIJING, Oct. ... vaccine-focused biotech company in China, announced today that ... Science and Technology Park organized an annual Business,Credit ... Biotech Co. Ltd.,s,("the Company") credit rating was successfully ...
Cached Biology Technology:Environmental Tectonics Corporation Announces a Multiple Sale of Hyperbaric Monoplace Chambers to Comprehensive Healthcare Solutions 2Environmental Tectonics Corporation Announces a Multiple Sale of Hyperbaric Monoplace Chambers to Comprehensive Healthcare Solutions 3Environmental Tectonics Corporation Announces a Multiple Sale of Hyperbaric Monoplace Chambers to Comprehensive Healthcare Solutions 4CEL-SCI Takes Delivery of New Manufacturing Facility 2Sinovac's Credit Rating Upgraded to AAZ, Second Highest Rating 2Sinovac's Credit Rating Upgraded to AAZ, Second Highest Rating 3
(Date:5/21/2013)... The largest gathering of biomass experts , ... , When? 03-07 June 2013 ... scientific research, resource assessment, market and policy developments, manufacturing ... the world and benefiting from its 2013 edition from ... more than 60 countries, more than 240 plenary and ...
(Date:5/21/2013)... , May 21, 2013 Royal Philips Electronics ... the world,s first portable ultrasound with Philips, industry leading ... capability. The CX50 xMATRIX with available Live 3D TEE ... at the EuroPCR, official meeting for the ... Since its launch in 2012, Philips CX50 ...
(Date:5/20/2013)... Bacteria resistant to the antibiotic colistin are also ... human body, according to a study in ... American Society for Microbiology. Cross-resistance to colistin and ... the body against bacterial attack, could mean that ... saddled with a crippled immune response. Colistin is ...
Breaking Biology News(10 mins):21st European Biomass Conference and Exhibition 221st European Biomass Conference and Exhibition 321st European Biomass Conference and Exhibition 4Philips CX50 xMATRIX now offers world-class interventional and diagnostic features on single portable system 2Resistance to last-line antibiotic makes bacteria resistant to immune system 2Resistance to last-line antibiotic makes bacteria resistant to immune system 3
... SAN DIEGO (September 30, 2008) While cholesterol-lowering drugs and ... disease, it continues to rank as the No. 1 killer ... the La Jolla Institute for Allergy & Immunology (LIAI) have ... player in reducing heart disease. "The statins (cholesterol-lowering drugs) ...
... HOUSTON, TX "Integrated" or "interdisciplinary" education evolved ... movement of the early 20th century. Integrated education ... students and teachers as co-planners of learning experiences. ... are being challenged to incorporate integrated curriculum strategies ...
... 30-foot-long predatory dinosaur discovered along the banks of Argentina,s ... their unusual breathing system. , University of Michigan paleontologist ... the discovery, to be published Sept. 29 in the ... and announced at a news conference in Mendoza, Argentina. ...
Cached Biology News:LIAI launches new division to look at novel approaches to heart disease and inflammation 2LIAI launches new division to look at novel approaches to heart disease and inflammation 3Integrated curriculum enhances academics 2Meat-eating dinosaur from Argentina had bird-like breathing system 2
These 22x40mm rectangular No.1 Corning cover glasses are made from No. 0211 zinc titania glass and are 0.16 to 0.19mm thick. • Approx. Pcs Oz : 73...
... PC, is used to perform runs ... from the Experion automated electrophoresis system. ... and simulated gel views and summarizes ... a Results table. This software is ...
...
... rolled steel with stove enamel coated (RAL 7035 ... Front, back and side windows ... lamps Internal adjustable tempered glass shelf ... Lighting 600 lux ...
Biology Products: