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This section provides information on properly classifying
and testing the various qualities of isolated colloidal silver products,
and has been developed as a guide for advanced study.
Featured:
University of North Texas Tests Colloidal Silver
|
 The
University of North Texas, under the supervision of Mark A. Farinha,
Ph.D, conducted in-vitro time kill studies to test the effectiveness
of SilverKare
Colloidal Silver at 15 PPM and 30 PPM.
Dr. Farinha's laboratory testing confirmed
the direct antimicrobal effect of silver against Staph, Candida and
Psuedomonas. Read the details: Silver
effective against pathogenic organisms, and explore how
silver can, via direct contact, reduce bacterial population counts
from over ten million copies to undetectable in under four minutes.
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Colloidal Silver Mastery - How Good is my Silver?
A Note about Production Methods
Before undertaking an advanced study on any particular
colloidal silver, it is wise to first perfect the production method to
the best of one's ability.
Quality control is of extreme importance, and is achieved
by limiting as many variables in the production process as possible.
If the production process is not properly standardized, then any analytical
study will not be accurate, as the silver produced from various batches
will be quite different.
LVDC - The low voltage direct current
method of production is the easiest method to use to create a stable,
quality product.
HVAC - The high voltage alternating current
method of production presents many pitfalls. High voltage creates complex
crystals in the end product. The crystals tend to be significantly larger
than necessary, although they may have unexplored properties. Such crystals
have, however, been tested as less effective in direct time kill studies
against products containing smaller particles. Using high voltage also
pulls contaminants from the air into the water, if a sealed chamber is
not used ( and flushed with something like Argon gas prior to use ).
This significantly effects the PH level of the end product. The likely
cause
of this is
excess nitrogen,
perhaps even silver nitrate. Beware of products with lower PH levels
without knowing exactly how the PH has been effective ( a quality, isolated
silver should be very close to nuetral 7.0 ).
Classifying Colloidal Silver via Analytical
Study - TEM, AAS, PCS & Antibacterial Time-Kill Studies
All testing conducted on colloidal silver should be done
not only by professional personnel, but professionals extremely familiar
with testing colloidal silver. Standard laboratories may not be capable
of classifying colloidal silver accurately. We've seen reports by manufactures
who have sent samples of the same batch of colloidal silver to two different "qualified" laboratories,
and in return received two completely different result reports.
The goal of the first objective study is to accurately
determine the PPM and "make-up" of colloidal silver, and if
possible, verify that the same production method produces consistant
results from batch to batch.
While determining the total concentration of silver as
measured in parts per million is important, it is also important to determine
the amount of ionic silver vs. particulate silver. Furthermore, determining
the average particle sizing and particle
dispersion is of paramount importance when gauging isolated
silver quality.
Transmission Electron Microscopy ( TEM )
Transmission electron microscopy is an affordable and extremely
revealing test procedure. While there are those who state that TEM is
not an ideal scientific instrument for classifying colloidal silver,
we beg to differ. There is a direct correlation between particle dispersion
characteristics and the antimicrobial properties of colloidal silver.
With two products of equal concentration, the characteristics may be
completely different, and these differences will not be revealed by other
testing methods, even those done with extremely advanced equipment (
such as with an HHPS or PCS ).
Laboratory Quality Colloidal Silver
Natural-Immunogenics
Electron microscope photo ( TEM ) of Sovereign
Colloidal Silver
.0006 - .003 microns
with complete dispersion
( photo provided by Natural-Immunogenics )
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High Quality Colloidal Silver
Silvergen
Electron microscope photo ( TEM ) of SilverGen's
Colloidal Silver
.0006 - .005 microns with excellent dispersion
( Photo provided by Silvergen )
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Inferior Colloidal Silver
[ Image cropped for Space Considerations ]
( photo provided by Natural-Immunogenics
)
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Inferior Colloidal Silver II
[ Image cropped for space considerations ]
( photo provided by Natural-Immunogenics
)
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Antibacterial Time-Kill Studies
Having established the primary characteristics of a colloidal
silver, the next step is to test the product against pathogenic organisms
using standardized in-vitro methods. It is extremely advantageous to
hire a lab staff that has extensive experience with testing a wide variety
of products, and therefore a comparative analysis is possible.
( photo provided by Eytons' Earth & Natural Immunogenics
)
For both TEM and time-kill studies, we recommend analytical
testing by:
Natural-Immunogenics Atomic
Emission Spectroscopy ( AES ), DLS & Photon Correlation
Spectronomy ( PCS )
AES may be utilized to determine accurate
concentrations of silver content. DLS ( Dynamic Light
Scattering ) may be employed to determine accurate particle sizing. Photo
Correlation Spectronomy may be utilized to measure the particle
size distribution of silver particles, and also to determine the zeta
potential.
These services may be acquired by contacting:
The Colloidal
Science Lab
View our recommended colloidal silver
products page, for silver products that are ethically marketed and
recommended for those pursuing private research on silver. All
Content Copyright 2007 AVRA unless otherwise specified
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Silver
Colloidal Silver
Use of Colloidal Silver - 101
The Benefits and Use of Colloidal Silver for Infections---- Silver
Element History - An Esoteric View ----FAQ:
Silver Compounds, Salts, Proteins, Colloidal and Isolated Silver ----FAQ:
LVDC Method of Colloidal Silver Production ----Definition
of Colloidal Silver ---- FAQ:
General Colloidal Silver Production ----Measuring
/ Testing PPM of Colloidal Silver ( Concentration ) ----Classifying & Testing
Colloidal Silver | TEM | AES | PCS ----(
MSP ) Mild Silver Protein ----Silver
Citrate ----Meaning
of ( EIS ) Electrically Isolated Colloidal Silver
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