Gold Nanopowder Water Dispersion (Au, 10–15 nm, 50ppm) is a colloidal solution of gold nanoparticles suspended in water. Here’s what it involves:
- Key Features:
- Gold (Au): The primary material is gold, known for its biocompatibility, optical properties, and catalytic activity.
- Nanoparticles: The gold particles are ultra-small, with an average diameter of 10–15 nanometers (nm), which gives them high reactivity and unique nanoscale effects.
- Water Dispersion: The nanoparticles are evenly dispersed in water, creating a stable suspension that prevents aggregation or settling.
- Concentration: The dispersion has a concentration of 50 ppm (parts per million), meaning there are 50 milligrams of gold nanoparticles per liter of solution.
- Properties:
- Small Particle Size: The 10–15 nm size provides enhanced surface reactivity, making the gold nanoparticles effective in various applications.
- Stability: The dispersion is stabilized to ensure that the nanoparticles remain evenly distributed and do not aggregate over time.
- Optical Properties: Gold nanoparticles have distinct optical characteristics, such as surface plasmon resonance, which are valuable in sensing and imaging applications.
- Applications:
- Biomedical Applications: Used in drug delivery systems, imaging, and diagnostics due to the biocompatibility and unique optical properties of gold.
- Catalysis: Gold nanoparticles are used as catalysts in chemical reactions, particularly in selective oxidation and other catalytic processes.
- Sensors: Employed in biosensors and chemical sensors for detecting specific molecules due to their surface-enhanced optical properties.
- Electronics: Used in the development of nano-scale electronic components, especially for conductive coatings and wires.
- Handling and Safety:
- Toxicity: Gold nanoparticles are generally considered biocompatible but should still be handled with care to avoid inhalation or ingestion.
- Storage: Store the dispersion in a cool, dark place to maintain stability and prevent particle aggregation or degradation.
- Precautions: Use gloves, goggles, and other protective equipment when working with the dispersion to minimize exposure. Handle in a well-ventilated area or under a fume hood to reduce inhalation risks.