Which Silver Is It?
Wondering if this is the silver sol you’re actually looking for? The silver sol available for purchase here is the one referred to in the following US Patent.
From US Patent #7,135,195
“The 10 ppm silver composition of the present invention was tested and found to be both bacteriostatic and bactericidal for all organisms tested. In other studies, this composition was compared to other commercially available colloidal silver products and found to have a superior activity to all other preparations tested (data not shown). The most interesting observation was the broad spectrum that the 10 ppm silver composition possesses. The antimicrobial activity that was observed was fairly constant independent of the particular organism tested. With the exception of Streptococcus faecalis and Streptococcus aureus (which had MIC values of 10 ppm and 5 ppm, respectively), MIC values ranged between 1.25 ppm and 2.5 ppm for both gram positive and gram negative organisms. The MBC values behaved similarly with values ranging from 1.25 ppm to 5 ppm with the exception of Streptococcus mutans, Streptococcus gordonii, and Streptococcus faecalis (which all had MBC values of 10 ppm). The data suggest that 10 ppm silver embodiment of this invention exhibits an equal or broader spectrum of activity than any one antibiotic tested. Antibiotics generally have restricted antibacterial spectra limited to susceptible organisms, but as the data demonstrate, the silver composition of the present invention is equally effective against both gram positive and gram negative organisms. The data suggest that with the low toxicity associated with silver, in general, and the broad spectrum of antimicrobial activity of this silver composition, this preparation can be effectively used as an alternative to antibiotics.”