Gold Nanoparticles/Nanopowder
Product Properties
Gold (Au) nanopowder/nanoparticles (nm & um)
Size | Type | Particle size（nm） | Purity（%） | Specific surface area（m2/g） | Bulk density（g/cm3） | Polymorphs | Color |
nm | JB-Au-001 | 20 | >99.9 | 3.394 | 1.25 | spherical | dark brown |
nm | JB-Au-002 | 60 | >99.4 | 2.134 | 3.1 | spherical | gold |
Custom | Acccording to customers requirment. (15-60nm etc) | ||||||
Gold(Au) Nanopowder Main Feature
Gold (Au) nanopowder, or gold nanoparticles, are extremely small gold particles with dimensions in the nanometer scale (1 nanometer = 1 billionth of a meter). These particles exhibit unique physical, chemical, and optical properties that differ significantly from bulk gold due to their small size and high surface area to volume ratio. Surface Plasmon Resonance (SPR): Gold nanoparticles exhibit a phenomenon known as surface plasmon resonance, where the conduction electrons on the surface oscillate in resonance with incident light. This gives rise to vivid colors ranging from red to purple, depending on the size, shape, and aggregation state of the nanoparticles. SPR is utilized in various sensing and imaging applications. Catalytic Activity: The high surface area of gold nanoparticles makes them excellent catalysts. They can accelerate chemical reactions without being consumed in the process. This property is useful in various industrial and environmental applications.Conductivity Enhancement: When incorporated into materials, gold nanoparticles can enhance electrical conductivity due to their excellent electron transfer properties. This is beneficial for creating conductive inks, coatings, and electronic components.
Gold (Au) Nanopowder Applications
- Gold nanoparticles are used in the manufacture of conductive inks for printed electronics, flexible electronics, and electronic circuits. Their excellent conductivity and stability make them ideal for these applications.
- Due to their high surface area and excellent catalytic properties, gold nanoparticles are used as catalysts in chemical reactions, including oxidation reactions and organic synthesis. They help in speeding up reactions without getting consumed in the process.
- In the cosmetics industry, gold nanoparticles are added to skincare products for their anti-inflammatory and antioxidant properties. They are believed to promote skin rejuvenation and have anti-aging effects.
- Gold nanoparticles are researched for use in environmental cleanup processes, such as the removal of toxic metals and organic pollutants from water. Their high surface area allows for efficient adsorption and catalysis of contaminants.
- Therapeutic Agent: In photothermal therapy, gold nanoparticles are used to absorb light and convert it into heat, destroying cancer cells with minimal damage to surrounding healthy tissue.