Science > Physics > room-temperature plasmas for biomedical applications
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Science > Physics |
| User: |
"Sam Wormley" |
| Date: |
20 Sep 2005 04:25:56 PM |
| Object: |
room-temperature plasmas for biomedical applications |
Cold plasmas move on
http://physicsweb.org/articles/news/9/9/11/1
20 September 2005
Researchers have developed a new hand-held device that can produce
room-temperature plasmas for biomedical applications. The source, which
was developed by Mounir Laroussi and XinPei Lu at the Old Dominion
University in Virginia, could be used to kill bacteria, heal wounds and
treat plaque (Appl. Phys. Lett. 87 113902).
At atmospheric pressure, most plasmas are so hot (thousands of degrees
centigrade) that they would immediately kill any living cells they come
into contact with. Moreover, these high-temperature plasmas are also
very difficult to control. In recent years, however, researchers have
developed techniques for producing low-temperature plasmas and some of
these have been used in biomedical applications. However, sources that
are more reliable and user-friendly are still needed.
See: http://physicsweb.org/articles/news/9/9/11/1
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| User: "Ken Muldrew" |
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| Title: Re: room-temperature plasmas for biomedical applications |
20 Sep 2005 05:33:28 PM |
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Sam Wormley <swormley1@mchsi.com> wrote:
Cold plasmas move on
http://physicsweb.org/articles/news/9/9/11/1
20 September 2005
Researchers have developed a new hand-held device that can produce
room-temperature plasmas for biomedical applications.
What about those globes where you control the "lightening" like plasma
strings by moving your fingers around the outer surface? Or those
christmas tree lights with the dancing orange plasma? They don't seem
to get very hot (on the other hand, they don't have biomedical
applications either).
Ken Muldrew
kmuldrezw@ucalgazry.ca
(remove all letters after y in the alphabet)
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| User: "Andy Resnick" |
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| Title: Re: room-temperature plasmas for biomedical applications |
21 Sep 2005 08:18:26 AM |
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Ken Muldrew wrote:
Sam Wormley <swormley1@mchsi.com> wrote:
Cold plasmas move on
http://physicsweb.org/articles/news/9/9/11/1
20 September 2005
Researchers have developed a new hand-held device that can produce
room-temperature plasmas for biomedical applications.
What about those globes where you control the "lightening" like plasma
strings by moving your fingers around the outer surface? Or those
christmas tree lights with the dancing orange plasma? They don't seem
to get very hot (on the other hand, they don't have biomedical
applications either).
Heh.. that's what I immediately thought of, also. And how is this
significantly different (in application) from UV germicidal lamps?
--
Andrew Resnick, Ph.D.
Department of Physiology and Biophysics
Case Western Reserve University
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| User: "Autymn D. C." |
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| Title: Re: room-temperature plasmas for biomedical applications |
21 Sep 2005 12:43:35 PM |
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lightning
Is this still a "cold" plasma in a vacuum?
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| User: "Richard Herring" |
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| Title: Re: room-temperature plasmas for biomedical applications |
22 Sep 2005 07:40:52 AM |
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In message <1127324615.265004.204200@g47g2000cwa.googlegroups.com>,
Autymn D. C. <lysdexia@sbcglobal.net> writes
lightning
Is this still a "cold" plasma in a vacuum?
Does the thermal energy of the particles significantly affect their
dynamics? If not, then it's "cold" in plasma terms.
--
Richard Herring
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| User: "Autymn D. C." |
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| Title: Re: room-temperature plasmas for biomedical applications |
22 Sep 2005 10:29:01 AM |
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and straight?
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