Silver (Ag) Nanopowder/Nanoparticles
Purity: 99.95%, Size: 28–48 nm, w/ ~0.25% PVP
Silver has long been recognized for its antimicrobial properties, and the high surface area of nanopowder significantly enhances its performance. Silver nanopowders are versatile materials with wide-ranging potential applications due to their electrical, optical, and antimicrobial characteristics. The PVP coating provides added stability by reducing aggregation and settling while improving dispersibility in various solvents and matrices, making the nanoparticles more suitable for diverse uses.
As Nano Chicago, we supply Silver Nanopowder in high quantities and multiple types tailored for different applications and requirements.
Technical Properties of Silver Nanoparticles:
| Property | Value |
|---|---|
| Bulk Density (g/cm3) | 1,24 |
| True Density (g/cm3) | 10,6 |
| Color | black |
| Shape | spherical |
| Crystal Structure | cubic |
| Atomic Weight | 107,87 |
| Tmelting (°C) | 961,9 |
| Tboiling (°C) | 2212 |
| Average Particle Size (nm) | 28–48 |
| Specific Surface Area (m2/g) | 7,0–10,0 |
Elemental Analysis:
| Element | Ag | Cu | Fe | Bi, Pb, Sb |
|---|---|---|---|---|
| Value | ≥99.95 | ≤0.010 | ≤0.003 | ≤0.002 |
Applications of Silver Nanoparticles:
Silver nanoparticles are widely used for their antimicrobial effectiveness. They serve as antibacterial and disinfectant agents and, in some cases, are utilized in pharmaceutical formulations. Adding small amounts of silver nanopowder (~0,1%) to various inorganic matrices imparts strong antimicrobial activity against pathogens such as Escherichia coli and Staphylococcus aureus. These disinfectant properties remain effective across different pH and oxidative environments.
Silver nanoparticles can also function as chemical catalysts, significantly improving the rate and efficiency of reactions such as ethylene oxidation. In biological research, they are used in diagnostic studies involving genes.
Beyond medical, pharmaceutical, and scientific fields, silver nanoparticles are incorporated into household products, including washing machines, refrigerators, air conditioners, toys, clothing, food containers, and detergents. Construction materials can gain antibacterial and corrosion-resistant properties when coated with silver nanoparticle–enhanced paints.
