|Pasargad baran chemistry|
Textile Finishing AgentsTextile Finishing Agent
SilverAg Nanoparticle /Nanopowder CAS Number : 7440-22-4
The real average size of spherical particle in this product is about 10 nm, while hydrodynamic particle size resulted by DLS analysis is 90 nm with pdi equal to 0.384. NaNO3 has been resulted as byproduct from the synthesis procedure. This colloid is electro-sterically stable and silver concentration is 5500 ppm in it. Silver particles are stabilized easily in nano-dimension which leads to formation more stable colloids. The most noticeable advantages of silver nanoparticles are in biomedicine. 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. Silver nanoparticles disrupt fungal structure and cause significant damage to fungal cells. It is also demonstrated the cytoprotective activity of silver nanoparticles (5-20 nm) toward HIV-1 infected cells. The modified electrochemical properties of silver nanoparticles can also offer faster response times and lower detection limits in nano-scale sensors.
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.