50 nm Ultra Uniform Gold Nanospheres, AUXU50-10M (CAT#: STEM-NSP-0444-LC)

50 nm Ultra Uniform spherical gold nanoparticles combine nearly perfect spherical shape, narrow size distribution, and strong plasmonic optical properties. These nanoparticles are useful in a broad range of applications from reference standards for size and particle number, biological labels, nanomedicine, drug delivery, biosensors, and more.

Surface: PEG-Carboxyl
Description: Covalently bound. Conjugatable surface.
Solvent: 2 mM sodium citrate solution
Surface chemistry: PEG12-carboxylic acid
TEM Diameter: 50 ± 2 nm
CV: ≤ 5%
Concentration: 0.05 mg/mL
Hydrodynamic diameter (DLS): TEM diameter + 8–12 nm
Zeta potential: ≤ –15 mV
pH of solution: 7.0–8.0
Peak wavelength (λmax): 515–560 nm
Volume: 10 mL