Re: pinhole speakers and hydrogen peroxide

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From: Karen Kalumuck (karenk@exploratorium.edu)
Date: Wed Jan 19 2005 - 13:04:24 PST 

Message-Id: <p05010400be147af44eef@[192.168.112.86]>
Date: Wed, 19 Jan 2005 13:04:24 -0800
From: Karen Kalumuck <karenk@exploratorium.edu>
Subject: Re: pinhole speakers and hydrogen peroxide

Hi Joe!

Regarding hydrogen peroxide, this is from the web site:
http://www.infectioncontroltoday.com/articles/191clean.html

Hope that it helps!

---Karen

"Hydrogen peroxide is effective against a wide variety of organisms:
bacteria, yeast, fungi, viruses, and spores. Anaerobes are even more
sensitive because they do not produce catalase to break down the
peroxide. In general, hydrogen peroxide has a greater activity
against gram-negative than gram-positive bacteria....

Hydrogen peroxide, the superoxide ion radical, and the hydroxyl
radical are intermediate products in the reduction of oxygen to
water. The hydroxyl radical is said to be the strongest oxidant
known, and it is by this mechanism that hydrogen peroxide is believed
to do the actual killing of bacteria. The hydroxyl radical, being
highly reactive, can attack membrane lipids, DNA, and other essential
cell components. 

-- 
Karen E. Kalumuck, Ph.D.
Biologist/Educator
Exploratorium Teacher Institute
3601 Lyon St.
San Francisco, CA   94123
415-561-0388
FAX  415-561-0307

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