Without being able to read the whole article, it gives more questions
than it answers. If I am interpreting figure 2 correctly, then there is
a substantial amount of silver nitrate in the sample. Then it appears
that they detected silver chloride in the result after mixing with HCl.
If there is ANY nitrate left, there will be silver chloride produced.
The concentration and temperature are still unknowns as well. One of
the figures implies that the conversion took 3 days, and that magnetic
stirring was used. If that is the case it would not be applicable to
the stomach where contents normally reside for no more than a couple of
hours. Also magnetic stirring can have a significant effect as well.
So all in all, without being able to read the entire article it is hard
to say if the results have anything to do with EIS in the stomach.
If anyone has a library close that carries this journal it should be
possible to get a copy of the article. I will try the UT library.
Marshall
Norton, Steve wrote:
Marshall,
I do not have a copy of the article. The link I provided does have a
little more info if you click the Figures/Tables tab above the abstract.
It provides small low resolution figures with the text associated with
the figure:
Fig. 1. XRD patterns of samples. (a) Ag nanoparticles prepared by using
AgNO3 as the silver source and obtained by drying the Ag colloidal
solution on a single crystal silicon substrate, (b) the product of AgCl
obtained from the reaction of Ag nanoparticles with hydrochloric acid,
(c) commercial Ag powder, (d) after commercial Ag powder was added into
hydrochloric acid under magnetic stirring for 3 days.
Fig. 2. UV-vis absorption spectra. Dotted curve: the Ag colloidal
solution prepared. Dashed curve: AgNO3 aqueous solution. Solid curve:
the upper transparent solution after the reaction of the Ag colloid with
hydrochloric acid.
Fig. 3. (a) TEM micrographs of Ag nanoparticles prepared using AgNO3 as
the silver source, (b) The histogram of Ag particle size distribution
Fig. 4. (a) TEM micrograph of the polyacrylamide (PAM)/silver
nanocomposite, (b) XRD pattern of PAM/silver nanocomposite, (c) XRD
pattern of the product after the reaction of PAM/silver nanocomposite
with hydrochloric acid.
It does not give intermediate results before the end of the three days
nor does it give the concentration of the HCl used. It appears to me
that all the silver particles in the test were converted to silver
chloride.
- Steve N
-----Original Message-----
From: Marshall Dudley [mailto:mdud...@king-cart.com]
Sent: Tuesday, September 21, 2010 1:00 PM
To: silver-list@eskimo.com
Subject: Re: CS>CS and killing of pathogens
Does anyone have a copy of this article? All I can get is the abstract,
and $37.50 for this seems rather absurd. Long ago I tried mixing
colloidal silver with hydrochloric acid and was unable to get any
observed reaction without heating it (with the colloidal part). There
is some very important information missing from the abstract, such as
what concentrations, temperatures are needed and how long the reaction
takes.
Marshall
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