|Mehrab Exir Chemical Industries|
Textile Finishing AgentsTextile Finishing Agent
SilverAg Nanoparticle /Nanopowder CAS Number : 7440-22-4
The real average size of spherical particle in this product is less than 30 nm, while hydrodynamic particle size resulted by DLS analysis is 17 nm with pdi equal to 0.638. NaNO3 has been resulted as byproduct from the synthesis procedure. This colloid is electro-sterically stable and silver concentration is 1010 ppm in it. Silver particles are stabilized easily in nano-dimension which leads to formation more stable colloids. It could be mentioned that in nano-dimension, antibacterial effect of silver increases significantly, so that they are able to destroy over 650 bacterial species. These nanoparticles have significant antifungal activities against some ringworms.
Colloidal silver is a mineral solution containing silver ions and very small charged silver particles suspended in a liquid medium. As the particles have the same electrostatic charge, they repel each other and this keeps them in uniform suspension throughout the medium. This is why it is called a colloid. Although silver ions are important, a 100% solution of silver ions is not colloidal silver. Various names have been used to describe colloidal silver, such as silver sols. It is sometimes referred to as "Nano Silver" as the particles are in the range of 1 to 100 nm.