Gold Nanostars, Size: 40–45 nm
Gold Nanostars are specialized gold nanoparticles characterized by multiple sharp, pointed branches that create a true star-shaped morphology. This distinctive geometry provides exceptional thermoplasmonic and electromagnetic behavior. Due to the ease of surface functionalization with biorecognition molecules, gold nanoparticles are highly suitable for biosensing studies and related applications.
Their ultrafine size also enables broad use in the medical field, including immunosensing, biolabeling, and drug delivery. These features make them valuable for disease diagnosis, treatment, and prevention. The nanostars are surface-modified with HEPES and dispersed in ultrapure water, forming a stable blue colloidal solution.
Their application areas include COVID-19 research, biosensors, medical diagnostics, plasmon-enhanced or tip-enhanced spectroscopy, cancer therapies, and other biomedical and optical applications.
Key Features
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High specific surface area and strong functionalization capability
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Excellent dispersibility and long-term stability
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Safe and environmentally friendly
Technical Specifications
| Property | Value |
|---|---|
| Composition | Gold nanostars with HEPES in ultrapure water |
| Average Diameter (TEM) | 40–45 nm (projected diameter) |
| Optical Density (OD) | 1 (per cm at SPR peak) |
| SPR Absorption Peak | ~690 nm |
| Appearance | Blue aqueous solution |
| Solution Volume | 10 ml / bottle |












