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BioReady Gold Nanoshells – Streptavidin

Ultrabright label for lateral flow – up to 20× increases in lateral flow diagnostic sensitivity over 40 nm gold.

Streptavidin tetramer is covalently bound to the particle surface via an amide bond. Streptavidin gold conjugates can be used for convenient conjugation of any biotinylated antibody, protein or oligonucleotide.

BioReady products are specially formulated for the attachment of a molecular recognition element such as an antibody for lateral flow and biodiagnostics. Learn more ❯

Provided at 10 OD in an aqueous conjugation buffer composed of .1× PBS, .5% BSA, and .05% azide


Don’t see the size you’re looking for? Please contact us about custom and semi-custom ordering.

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Bulk purchasing options are available – please contact us if you are interested

Typically ships within 5 business days

Product number: GSIR150-200U

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Specifications & CoA

TEM Diameter Size Distribution (CV) Example Certificate of Analysis
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140 to 170 nm ≤ 15% Download Example CoA

Note: approximate ranges below are dependent on diameter

  • Hydrodynamic diameter (DLS): 165 to 210 nm
  • Zeta potential: < –10 mV
  • pH of solution: 6.5 to 8.
  • Particle surface: streptavidin
  • Solvent: .1× PBS, .5% BSA, and .05% azide
  • Peak wavelength (λmax): 760 to 850 nm

More Info & Documentation


nanoComposix University

GSIR 150nm

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