Researchers Kill Cancerous Tissue with Hyperthermia
November 23, 2010 1:53 PM
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Virginia Tech and Jadavpur University researchers use what they are calling Thermotherapy to kill cancerous tissue
Engineering researchers at
have found that cancerous cells can be pinpointed and killed through the
use of hyperthermia
The lead researchers of the study includes Monrudee Liangruksa, a Virginia Tech graduate student in engineering science and mechanics; Ishwar Puri, professor and head of the department, and Ranjan Ganguly, of Jadavpur University's Department of Power Engineering in Kolkata, India. Together, these researchers have found a way to utilize hyperthermia as a way of elevating the temperature of tumor cells while making sure the healthy tissue surrounding these cells stay at a lower temperature.
To do this, the research team
induced the hyperthermia
using ferrofluids, which are liquids that become heavily magnetized when in the presence of a magnetic field. Through the use of ferrofluids, magnetic nanoparticles are "suspended" in the non-polar state.
"These fluids can then be magnetically
targeted to cancerous tissues
after intravenous application," said Puri. "The magnetic nanoparticles, each billionths of a meter in size, seep into the tissue of the tumor cell due to the high permeability of these vessels."
Researchers then expose the tumor to a high frequency alternating magnetic field, which heats the magnetic nanoparticles and results in the death of the tissue. They used temperatures between 41 and 45 degrees Celsius, which is enough to stop the growth of cancerous tissue.
The process this research team used is called magnetic fluid hyperthermia, but they are calling it thermotherapy. Thermotherapy was necessary in the study because temperatures of 41 to 45 degrees Celsius can also kill healthy tissue in addition to the cancerous tissue. Thermotherapy insures that healthy tissue stays at lower temperatures.
"The ideal hyperthermia treatment sufficiently increases the temperature of the tumor cells for about 30 minutes while maintaining the healthy tissue temperature below 41 degrees Celsius," said Puri. "Our ferrofluid-based thermotherapy can be also accomplished through thermoablation, which typically heats tissues up to 56 degrees Celsius to cause their death, coagulation, or carbonization by exposure to a noninvasive
, alternating current magnetic field. Local heat transfer from the nanoparticles increases the tissue temperature and ruptures the cell membranes."
The next step is to test their analytical approach on several different cancer cells by conducting experiments along with Dr. Elankumaran Subbiah from the Virginia-Maryland School of Veterinary Medicine.
was presented at the 63rd annual meeting of the
American Physical Society
on November 23.
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Now 100% free...
11/23/2010 2:01:11 PM
Of political banter.
And how, you might ask?
Simple, the scientist replied. First, I added fifty percent ferro-magnetic material to the offenders, next, I added twenty percent nitro-glycerine, third I added a smidgen of salt (to please the nostrils), fourth I filled the remainder of the visceral body with cork-wood and last, I added a bit of magnetic field for the final touch.
Viola! The end to all political banter in all of America. The cancer has been cured!
Now if all the old-wood could truly be taken out thus so.
Isn't science great?
I think this cure is interesting. What I am curious about though, is how the surrounding tissue is protected from the advanced heating that the cancerous tissue is induced through via induction. I mean, the tissue is heated, the resonations are present, it surely would pass on to surrounding tissues at least in a miniscule way. Secondly, I am assuming that due to the tissue being killed within the body, the body will then engulf and consume the now dead tissue.
Hmm... You could eat yourself. What a novel idea!
RE: Now 100% free...
11/23/2010 5:27:16 PM
I'd like to see the political banter version please.
DailyTech's standards of journalism are so piss poor... I wish Anand would distance himself from this site, it casts his site in a bad light as well by virtue of the links there.
And I don't understand how Tiffany Kaiser still has a job there... I guess Kris cares more about hits than ensuring quality articles?
RE: Now 100% free...
11/23/2010 6:04:57 PM
DailyTech's standards of journalism are so piss poor...
the standards here are way above those of Faux News.
And if you don't agree
SHUTUP! SHUTUP! SHUTUP!
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