COVID-19 assay development and reagents
❮ Carboxyl

Ultra Uniform Gold Nanospheres – PEG-Carboxyl·

PEG-carboxyl is covalently bound to the metal surface. The acid provides a highly negatively charged surface and can be utilized for conjugation. Learn more ❯

Ultra Uniform materials are our most highly-monodispersed particles. Ideal for use as size standards or applications requiring a tight size distribution. Learn more ❯

Provided at 0.05 mg/mL in aqueous 2 mM sodium citrate.

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Product number: AUXU10-1M

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Specifications & CoA

TEM Diameter Size Distribution (CV) Example Certificate of Analysis
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10 nm ± 2 nm ≤ 5% Download Example CoA
20 nm ± 2 nm ≤ 5% Download Example CoA
30 nm ± 2 nm ≤ 5% Download Example CoA
50 nm ± 2 nm ≤ 5% Download Example CoA
100 nm ± 3 nm ≤ 6% Download Example CoA

Note: approximate ranges below are dependent on diameter

  • Hydrodynamic diameter (DLS): TEM diameter plus 8 to 12 nm
  • Zeta potential: –15 to –65 mV
  • pH of solution: 7.0 to 8.0
  • Particle surface: PEG12-carboxylic acid
  • Solvent: 2 mM sodium citrate solution
  • Peak wavelength (λmax): 515 to 565 nm

More Info & Documentation

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