Navigation Links
Einstein's tea leaves inspire new blood separation technique

Scientists at Monash University in Australia have developed a process for rapidly and efficiently separating blood plasma at the microscopic level without any moving parts, potentially allowing doctors to do blood tests without sending samples to a laboratory. The new method uses the same principle that causes tea leaves to accumulate at the center of the bottom in a stirred teacup, a phenomenon first explained by Einstein in the 1920s.

The research was done by Drs. Dian R. Arifin, Leslie Y. Yeo and James R. Friend, of Monash University's Micro/Nanophysics Research Laboratory in the Department of Mechanical Engineering. The researchers' findings are published in the current issue of the new open-access journal Biomicrofluidics (http://bmf.aip.org).

Separating blood plasma from red blood cells, proteins and other microscopic particles is an essential step in many common medical tests, including those for cholesterol levels, drugs in athletes, blood types in donors and glucose levels in diabetics. Current testing requires samples to be taken in a doctor's office and sent off to a laboratory and analyzed with a large centrifuge, a process that can take several days.

In the new method, a tiny amount of blood enters a fluid chamber, and a needle tip is placed close to the surface of the blood at an angle. A voltage is applied to the needle, generating ions around its tip that repel the oppositely charged ions close to it. This creates an airflow known as "ionic wind" that sweeps across the surface of the blood, causing it to circulate. The microscopic particles in the blood travel in a downward spiral because of the needle's angle relative to the surface.

When the fluid begins to circulate, one might intuitively expect the microscopic particles such as red blood cells would be pulled to the outside wall of the chamber owing to centrifugal force. But because of a phenomenon called the "tea leaf paradox," the particles are instead pulled i
'"/>

Source:American Institute of Physics


Page: 1 2

Related biology news :

1. Depression model leaves mice with molecular scar
2. Researchers discover way to transport environmental arsenic to plant leaves in new clean-up strategy
3. Researchers offer clues to how leaves patterns are formed
4. Ghost protein leaves fresh tracks in the cell
5. Beetle-inspired switch uses water for bonding
6. Nanotubes inspire new technique for healing broken bones
7. UC Berkeley researchers create a biologically-inspired artificial compound eye
8. Methane-belching bugs inspire a new theory of the origin of life on Earth
9. Squid-inspired design could mean better handling of underwater vehicles
10. Biologically inspired sensors can augment sonar, vision system in submarines
11. White blood cell waste disposal system plays critical regulatory role
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Einstein tea leaves inspire new blood separation technique

(Date:7/24/2014)... -- To reduce fire hazard in the United States, ... cutting woody shrubs and suppressed trees (ladder fuels). ... during periods of low fire danger in order to ... minimize hazardous air pollutants, managers often cover all or ... commonly referred to as agricultural plastic, in order to ...
(Date:7/24/2014)... BRUNSWICK, N.J. A yearlong study funded by the ... the Edward J. Bloustein School of Planning and Public ... owners in Sandy-affected towns are skeptical about the likelihood ... online survey respondents, 45 percent indicated they were "pessimistic" ... affected by Superstorm Sandy would be rebuilt better than ...
(Date:7/24/2014)... the primordial soup in which life arose have been maintained ... of East Anglia. , Research published today in the ... yeast and very likely also in animals still perform ancient ... life some four billion years ago. , The primordial ... ocean as a result of the combination of metals, gases ...
Breaking Biology News(10 mins):Study gives new perspective on agricultural plastic, debris burning, and air quality 2Rutgers study explores attitudes, preferences toward post-Sandy rebuilding 2
... dozens of shark species living in the coastal waters off ... the species, but a survey begun nearly 25 years ago ... populations and their role in marine ecosystems. NOAA scientists ... R.I., recently conducted their ninth coastal shark survey from Florida ...
... colorful leaves adorning the trees are a delight to the ... the United States and East Asia boast lustrous red foliage. ... autumnal hues around the world? A new theory provided by ... at the University of Haifa-Oranim and Prof. Jarmo Holopainen of ...
... team of researchers from Boston University, Harvard Medical School ... that changes a long held paradigm about how bacteria ... that causes human stomach ulcers uses a clever biochemical ... allowing it to move and survive and further colonize ...
Cached Biology News:Scientists conduct shark survey off US East Coast 2Scientists conduct shark survey off US East Coast 3Why are autumn leaves red in America and yellow in Europe? 2Why are autumn leaves red in America and yellow in Europe? 3Uncovering the secrets of ulcer-causing bacteria 2
(Date:7/24/2014)... CA (PRWEB) July 24, 2014 ... reporting of molecular diagnostic test results. It also ... necessary for the validation and reporting of high ... Molecular diagnostics is a rapidly growing area of ... disease, genetic predisposition, cancer, and companion diagnostics in ...
(Date:7/23/2014)... July 23, 2014  Sangamo BioSciences, Inc. (NASDAQ: ... financial results and accomplishments. For the ... consolidated net loss of $7.0 million, or $0.10 per ... or $0.10 per share, for the same period in ... cash, cash equivalents, marketable securities and interest receivable of ...
(Date:7/23/2014)... Helmholtz-Zentrum Dresden-Rossendorf (HZDR), the Vienna University of Technology ... in embedding nearly perfect semiconductor crystals into a ... hybrid nanowires, very fast and multi-functional processing units ... the future. The research results will be published ... Nano-optoelectronics are considered the cornerstone of future chip ...
(Date:7/23/2014)... July 23, 2014 Shimadzu Scientific ... amino acid analysis system developed jointly with Ajinomoto ... Station can analyze 38 amino acids in nine ... Station achieves high-speed analysis utilizing a fast application-specific ... provides accurate analytical results even under conditions with ...
Breaking Biology Technology:New DNA-barcode Patent Virtually Eliminates False Test Results and Sample Mix-up 2Sangamo BioSciences Reports Second Quarter 2014 Financial Results 2Sangamo BioSciences Reports Second Quarter 2014 Financial Results 3Sangamo BioSciences Reports Second Quarter 2014 Financial Results 4Sangamo BioSciences Reports Second Quarter 2014 Financial Results 5Sangamo BioSciences Reports Second Quarter 2014 Financial Results 6Sangamo BioSciences Reports Second Quarter 2014 Financial Results 7Sangamo BioSciences Reports Second Quarter 2014 Financial Results 8Sangamo BioSciences Reports Second Quarter 2014 Financial Results 9A crystal wedding in the nanocosmos 2Shimadzu's New UF-Amino Station Provides High-Speed, Multi-Component Analysis of Amino Acids in Food & Beverage and Pharmaceutical Testing 2
... RICHMOND, Va. (Sept. 1, 2009) An international team ... that acts as a semiconductor and could help material ... microchips. The team of researchers from Virginia Commonwealth ... of Science in Shanghai, China; and Tohoku University in ...
... , , ... Transgenomic, Inc. (OTC Bulletin Board: TBIO) and Power3 Medical Products, ... on-line publication of a clinical research paper entitled "Abnormal Serum ... Biochemical and Biophysical Research Communications. The study demonstrates the usefulness ...
... , , , BOULDER, ... LENA Autism Screen (LAS) to 91 percent for children 24 to 48 ... is now as accurate or more accurate than other autism screens currently ... http://www.newscom.com/cgi-bin/prnh/20090210/LA69114 ) , , "We,re thrilled with this leap ...
Cached Biology Technology:Researchers design new graphene-based, nano-material with magnetic properties 2Transgenomic and Power3 Medical Report Identification of Abnormal Serum Proteins in Parkinson's Disease 2Transgenomic and Power3 Medical Report Identification of Abnormal Serum Proteins in Parkinson's Disease 3Transgenomic and Power3 Medical Report Identification of Abnormal Serum Proteins in Parkinson's Disease 4Advancement Made in Automatic Autism Screen Increases Accuracy to 91%, Scheduled for Release This Month 2Advancement Made in Automatic Autism Screen Increases Accuracy to 91%, Scheduled for Release This Month 3
...
... cytostatic and anti-viral agent. Inhibits several important steps ... formation of HUVEC cells. Also reduces intracellular reactive ... IL-8 release of endothelial cells. ... 16 O 8 MolWeight: ...
... includes the pZErO-1 vector with Zeocin resistance ... vector utilizes positive selection to eliminate high ... resistance gene reduces the overall vector size ... kit contains all of the reagents you ...
NATIVE, ENZYME PORCINE TRYPSIN...
Biology Products: