Silver (Ag) Nanopowder/Nanoparticles
Purity: 99.95%, Size: 48–78 nm, Metal Basis
Silver has long been recognized for its antimicrobial capabilities, and the high surface area of nanopowder significantly enhances its effectiveness. Silver nanopowders are versatile materials with broad application potential due to their unique electrical, optical, and biological properties. They are also increasingly explored in electronics and photonics.
Technical Properties of Silver Nanoparticles
| Bulk Density (g/cm³) | 0.41 |
|---|---|
| True Density (g/cm³) | 10.6 |
| Color | black |
| Shape | spherical |
| Crystal Structure | cubic |
| Atomic Weight | 107.87 |
| T<sub>melting</sub> (°C) | 961.9 |
| T<sub>boiling</sub> (°C) | 2212 |
| Average Particle Size (nm) | 48–78 |
| Specific Surface Area (m²/g) | 5.45 |
| Elemental Analysis | Ag |
| Values | ≥99.95 |
Applications of Silver Nanoparticles
Silver nanoparticles are widely known for their antimicrobial performance. They are used as antibacterial and disinfectant agents and, in some cases, play roles in pharmaceutical applications, including treatments related to AIDS. Incorporating small quantities of silver nanopowder (~0.1%) into various inorganic matrices enables effective elimination of pathogenic microorganisms such as Escherichia coli and Staphylococcus aureus. These disinfecting properties remain durable across varied pH and oxidative environments.
Silver nanoparticles can also function as chemical catalysts, significantly enhancing reaction speed and efficiency—for example, in ethylene oxidation. They additionally serve important roles in biological and diagnostic studies, including gene analysis.
Beyond medical, pharmaceutical, and scientific uses, silver nanoparticles are utilized in everyday household products. Manufacturers incorporate them into items such as washing machines, refrigerators, air conditioners, toys, clothing, food containers, and detergents. Construction materials can also benefit from antibacterial and corrosion-resistant properties when coated with silver nanoparticle–enhanced paints.
