Navigation Links
Blood is thicker than water -- and blood plasma is, too
Date:2/19/2013

le with respect to vascular wall deposits, aneurysms or blood clots. The results from this research may well help to improve computer simulations of this kind of pathological process.

The research team around experimental physicist Christian Wagner and engineer Paulo E. Arratia have studied the flow dynamics of blood experimentally. The work at Saarland University involved experiments in which the blood plasma was allowed to form drops inside a specially built apparatus equipped with high-speed cameras fitted with high-resolution microscope lenses to analyze drop formation. "Our experiments showed that the blood plasma forms threads, that is, it exhibits an extensional viscosity, which is something we do not observe in water," explained Professor Wagner. The plasma shows "viscoelastic" properties, which means that it exhibits both viscous and elastic behavior when deformed, forming threads that are typical of non-Newtonian fluids.

The studies by Professor Arratia and his team at the University of Pennsylvania involved a microfluidic approach in which they developed a model of a microvascular system in order to study the flow properties of blood plasma. Their measurements showed that blood plasma exhibits a flow behavior different to that of water and that plasma can demonstrate a substantially higher flow resistance. "An important part of our study was developing microfluidic instruments sensitive enough to pick up the small differences in viscosity that are the signature of non-Newtonian fluids," explained Professor Arratia.

Experiments performed by Professor Wagner's team in Saarbrcken also showed that blood plasma influences the creation of vortices in flowing blood. These vortices may facilitate the formation of deposits on blood vessel walls which could influence blood clot formation. In one of their experiments, the research team let plasma flow through a narrow channel of the kind found in stenotic (constricted) arteries or in a ste
'/>"/>

Contact: Christian Wagner
c.wagner@mx.uni-saarland.de
49-068-130-23003
Saarland University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Rice University lab show how blood vessels regroup after stroke
2. Tumor blood vessels prevent the spread of cancer cells
3. Study identifies liver gene that regulates cholesterol and fat blood levels
4. Achilles heel: Popular drug-carrying nanoparticles get trapped in bloodstream
5. Propping open the door to the blood brain barrier
6. 1 of the key circuits in regulating genes involved in producing blood stem cells is deciphered
7. Chance finding reveals new control on blood vessels in developing brain
8. Mussel goo inspires blood vessel glue
9. Better blood transfusions for preterm babies
10. New risk factor identified for high blood pressure during pregnancy
11. Multiple sclerosis immune exchange between brain and blood is uncovered
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Blood is thicker than water -- and blood plasma is, too
(Date:1/22/2015)... NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) a biometric ... recent success of the Wocket™ smart wallet at CES 2015 in ... named as one of the "11 Hot Products at CES" in a ... CES So Far" by Newseveryday.com and "The top 10 gadgets from CES ...
(Date:1/22/2015)... 21, 2015  Analyst Report Issued by Small Cap IR. In ... that planet-wide, transactions at merchants on the leading payment cards ... of credit, debit, and prepaid cards reached 6.54 billion.  Eight ... fraudulent card usage in 2012, and credit and debit card ...
(Date:1/22/2015)... , Jan. 22, 2015 Research and Markets ... of the "Global Wearable Technologies Market and ... Overview, Trends and Forecast 2014-2020" report to ... are smart devices that can be worn on ...
Breaking Biology News(10 mins):CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2
... definitely something to be said for first impressions. New ... can take just 20 seconds to detect whether a ... compassionate. The findings reinforce that healthy humans are ... in a tough situation. They also pave the way ...
... 90 percent of cancer deaths are caused by secondary tumors, ... To become mobile and break free from the original ... environment. Many cells have been implicated in this process, including ... collaborator in metastasis is platelets, the blood cells whose normal ...
... rare and neglected diseases that include potential treatments for ... that affects the central nervous system of newborns, a ... a rare lung disease. The six new projects are ... Rare and Neglected Diseases (TRND) program. "These projects ...
Cached Biology News:Is a stranger trustworthy? You'll know in 20 seconds 2MIT: Uncovering a key player in metastasis 2MIT: Uncovering a key player in metastasis 3NIH TRND program announces next round of drug development projects 2NIH TRND program announces next round of drug development projects 3NIH TRND program announces next round of drug development projects 4NIH TRND program announces next round of drug development projects 5
(Date:1/22/2015)... | RBJ today announces the firm brokered a long-term lease ... leading biopharmaceutical company, at Two Ledgemont Center in ... , president, and Brian Cohen , senior vice president, ... at 95 Hayden Ave. Photo - http://photos.prnewswire.com/prnh/20150122/170765 ...
(Date:1/22/2015)... Boulder, CO / Rootstown, OH (PRWEB) January 22, 2015 ... sensitive detection platform, announced today that it has received AOAC-PTM ... O26, O45, O1O3, O111, O121, and O145; collectively referred to ... (E. coli) O157, at 1 colony forming unit (cfu) per ...
(Date:1/22/2015)... January 22, 2015 Controlled Substance Compliance ... which helps companies check the legal requirements around using ... to China. , As their international operations expand ... adopting software solutions built as a result of the ...
(Date:1/22/2015)... , Jan. 22, 2015   Cypher Genomics, Inc., ... Inc. (NASDAQ: SQNM ), the leading ... for next generation noninvasive prenatal tests (NIPT). Through ... technology, called Mantis™, to advance analysis of clinically-relevant ...
Breaking Biology Technology:Transwestern?RBJ Advises Shire in 202,000 SF Lease, Creating Boston's Largest Suburban Biotech Campus 2Crystal Diagnostics Awarded AOAC-PTM Accreditation for the Rapid Detection of “Big 6” E.coli Food Pathogens 2Global Compliance Service for Controlled Substances to Expand to China 2Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4
... Ltd. (Bovespa:,AGEN11), one of the largest provider of integrated ... to its,shareholders and investors that, on April 10, 2008, ... acquisition of 264,000 m3 of,biodiesel, for delivery between July ... was to ensure supply of the necessary volumes for ...
... Inc.,(Amex: SGN ) has confirmed that it has ... Executive Officer, Dr. Lowell T. Harmison, has,scheduled a webcast ... Dr. Harmison stated: "Now that Signalife has closed filing ... shipping,product, I am pleased to provide direction on new ...
... SIAL ), will hold its quarterly conference ... 23, 2008, at 11:00 a.m. Eastern Time,(10 a.m. ... by Thomson/CCBN and can be accessed at,Sigma- Aldrich,s ... webcast is also being distributed through the Thomson ...
Cached Biology Technology:Signalife Announces Webcast 2Signalife Announces Webcast 3Sigma-Aldrich Corporation 1st Quarter 2008 Earnings Conference Call 2
Recombinant Rhesus Monkey IFN-Alpha...
2,4-Dinitrophenyl hapten is conjugated to BSA (Bovine Serum Albumin) protein through lysine....
4-Hydroxy-3-iodo-5-nitrophenylacetyl hapten is conjugated to BSA protein through lysine by amide bonds....
Amino Acid Analysis is performed using ion-exchange separation of the amino acids from acid hydrolysates, followed by ninhydrin detection. Typical quantities required are 0.1 to 0.5 mg, depending on...
Biology Products: