Biotin Gold Nanoparticles

Biotin functionalized gold nanoparticles are available with diameters in the range of 5nm – 100nm.  These particles have a precisely engineered surface for optimal streptavidin binding while minimizing non-specific binding to other proteins present in your sample.

Biotin Gold Nanoparticles 1

The gold nanoparticle label allows for convenient binding and detection of streptavidin in applications such as TEM, ELISA and Immuno dot-blots among others. 

Biotin Gold Nanoparticles 2

Figure 1. Biotin gold nanoparticles bound to an avidin-coated surface substrate. Courtesy of Trevor Olsen, University of Alberta. Images taken at the NINT Electron Microscopy Facility.

Ranges Available in 5nm, 10nm, 15nm......100nm.

  • Composition: Biotin gold nanoparticles
  • Core Size: 5nm
  • Absorption max: 515-520nm
  • Optical Density (OD): 50
  • Particles per ml: 2.73E+15
  • Biotin Surface Density: ~0.5/nm2
  • Formulation: Supplied in USP grade purified water


Biotin Gold Nanoparticles are made using a unique proprietary protocol resulting in particles with superior size distribution and shape compared to the leading competitor.

These gold nanoparticles have a narrow size distribution (CV of less than 15%) and more than 95% spherical particles.

Low batch to batch variability (+/- 2nm) assures you as a customer always end up with a product within the specified size range ordered.

All of our batches go through stringent quality control prior to shipment to our customers using dynamic light scattering to guarantee size and monodispersity and lot specifications are supplied with each product.


Store product away from direct sunlight at 4°C. Do NOT freeze. When stored as specified the product is stable for at least twelve months.

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