Navigation Links
Using magnets to help prevent heart attacks
Date:6/7/2011

If a person's blood becomes too thick it can damage blood vessels and increase the risk of heart attacks. But a Temple University physicist has discovered that he can thin the human blood by subjecting it to a magnetic field.

Rongjia Tao, professor and chair of physics at Temple University, has pioneered the use of electric or magnetic fields to decrease the viscosity of oil in engines and pipelines. Now, he is using the same magnetic fields to thin human blood in the circulation system.

Because red blood cells contain iron, Tao has been able to reduce a person's blood viscosity by 20-30 percent by subjecting it to a magnetic field of 1.3 Telsa (about the same as an MRI) for about one minute.

Tao and his collaborator tested numerous blood samples in a Temple lab and found that the magnetic field polarizes the red blood cells causing them to link together in short chains, streamlining the movement of the blood. Because these chains are larger than the single blood cells, they flow down the center, reducing the friction against the walls of the blood vessels. The combined effects reduce the viscosity of the blood, helping it to flow more freely.

When the magnetic field was taken away, the blood's original viscosity state slowly returned, but over a period of several hours.

"By selecting a suitable magnetic field strength and pulse duration, we will be able to control the size of the aggregated red-cell chains, hence to control the blood's viscosity," said Tao. "This method of magneto-rheology provides an effective way to control the blood viscosity within a selected range."

Currently, the only method for thinning blood is through drugs such as aspirin; however, these drugs often produce unwanted side effects. Tao said that the magnetic field method is not only safer, it is repeatable. The magnetic fields may be reapplied and the viscosity reduced again. He also added that the viscosity reduction does not affect the red blood cells' normal function.

Tao said that further studies are needed and that he hopes to ultimately develop this technology into an acceptable therapy to prevent heart disease.

Tao and his former graduate student, Ke "Colin" Huang, now a medical physics resident in the Department of Radiation Oncology at the University of Michigan, are publishing their findings in the journal, Physical Review E.


'/>"/>

Contact: Preston M. Moretz
pmoretz@temple.edu
215-204-4830
Temple University
Source:Eurekalert

Related biology news :

1. USC researchers discover genetic mutation causing excessive hair growth
2. Sardines and horse mackerel identified using forensic techniques
3. Zebrafish regrow fins using multiple cell types, not identical stem cells
4. Study finds therapies using induced pluripotent stem cells could encounter immune rejection problems
5. Seals sense shapes using their whiskers to feel wakes
6. Scientists can track origin of shark fins using zip codes in their DNA
7. Researchers create functioning synapse using carbon nanotubes
8. Jefferson researchers unlock key to personalized cancer medicine using tumor metabolism
9. Invasive mussels causing massive ecological changes in Great Lakes
10. Developing a tool for identification -- even using very degraded DNA samples
11. Researchers discover new wintering grounds for humpback whales using sound
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/21/2016)... 2016 Unique technology combines ... superior security   Xura, Inc. ... secure digital communications services, today announced it is working ... enterprise customers, particularly those in the Financial Services Sector, ... authentication within a mobile app, alongside, and in combination ...
(Date:3/14/2016)... Florida , March 14, 2016 ... the growing mobile commerce market, announces the airing of a ... channels starting the week of March 21 st .  The ... CNBC, including its popular Squawk on the Street show. ... focused on the growing mobile commerce market, announces the airing ...
(Date:3/10/2016)... , March 10, 2016   Unisys Corporation (NYSE: ... Border Protection (CBP) is testing its biometric identity solution ... Diego to help identify certain non-U.S. citizens leaving ... The test, designed to help determine the efficiency and accuracy ... in February and will run until May 2016. --> ...
Breaking Biology News(10 mins):
(Date:4/28/2016)... ... April 28, 2016 , ... Next week on May 5 ... first-in-class technologies for tissue stem cell counting and expansion to gene-editing scientists and ... & CRISPR-based Genome Engineering in Burlington, Massachusetts. , The attention of most gene-editing ...
(Date:4/27/2016)... , ... April 27, 2016 , ... The Pittcon Organizing ... 2019. Chuck has been a volunteer member of Committee since 1987. Since then, ... board of directors and treasurer and was chairman for both the program and exposition ...
(Date:4/27/2016)... , ... April 27, 2016 , ... ... Jon Clark has joined the company as an Expert Consultant. Mr. Clark ... industry collaborations and managing the development of small molecule monographs based on analytical ...
(Date:4/27/2016)... , April 27, 2016 MedDay, ... disorders, today announces the appointment of Catherine Moukheibir as Chairman ... MedDay,s previous Chairman, Jean Jacques Garaud , who contributed ... change is effective immediately. Catherine started her career ... and London .  She held ...
Breaking Biology Technology: