Gold (Au) Nanopowder/Nanoparticles
Purity: 99.99+%, Size: 10–30 nm
Technical Properties:
| Property | Value |
|---|---|
| Particle Size | 10–30 nm |
| Purity | 99.99+% |
| Elemental Analysis (ppm wt) | Cu | Si | Zn | Mg | Ba | Cd |
|---|---|---|---|---|---|---|
| 0.006% | 0.004% | 0.002% | 0.002% | 0.001% | 0.001% |
Applications:
Biomedical and Healthcare Applications: Gold nanoparticles serve as contrast agents in CT and photoacoustic imaging, carriers for targeted drug delivery, and mediators of photothermal/photodynamic tumor ablation. Their antimicrobial coatings on implants and dressings also curb biofilm formation and support wound healing.
Electronics and Conductive Materials: AuNPs formulate conductive inks for printed and flexible circuits, enable surface-enhanced Raman sensors for chemical/biological detection, and form low-resistance contacts in nanoelectronic devices.
Chemical and Catalytic Applications: As heterogeneous catalysts, AuNPs drive the selective oxidation of alcohols, reduction of nitroarenes, and low-temperature CO oxidation. In electrocatalysis, they improve CO₂ reduction and oxygen-reduction reactions in fuel cells.
Agriculture and Food Safety: Functionalized AuNPs power colorimetric or electrochemical strips that rapidly detect pesticides, mycotoxins, and pathogens, while AuNP-embedded smart packaging signals spoilage and gas emissions.
Environmental and Filtration Systems: AuNP-based SERS sensors identify heavy metals and organics at parts-per-billion levels. Incorporated into membranes or adsorbents, they catalyze pollutant degradation under light and selectively remove arsenic and mercury.
