Streptavidin - 70nm Gold NanoUrchins

Gold nanoparticle core size: 70nm

Absorbance (lambda max.): 600nm

Optical density: Available at OD=3 and OD=10, select in product options

Conjugated protein: Streptavidin, from Streptomyces avidinii

Working dilution: 1:5-1:100

Supplied in: 0.5XPBS (pH 7.4), 20% glycerol (v/v), 1% BSA


Gold NanoUrchin streptavidin conjugates are suitable for use in immunoblotting, light microscopy, and electron microscopy applications. 

Advantages of Gold Conjugates

  • Sensitive technique (100pg or less in dot blotting when used together with our silver enhancement kit)
  • This small gold nanoparticle conjugate is ideal for increasing sensitivity in immunohistochemistry protocols when used together with our silver enhancement kit for microscopy.
  • Provides a permanent label


  • Store undiluted in storage buffer at 2-8 degree Celsius. Stable for 4 months if stored as specified.
  • Storage of conjugate at working dilution may result in performance loss.