Protein A Gold NanoUrchin Conjugates

Protein A conjugated gold nanourchins can be used for secondary detection of antibody probes in assays such as lateral flow, immunoblotting, ELISA, light microscopy and electron microscopy applications.

Protein A gold nanourchin conjugates can also be used for capturing of antibody species with affinity for Protein A to the gold nanourchin surface.

Gold nanoparticle core size: 50nm, 60nm, 70nm, 80nm, 90nm, 100nm

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

Available in: 0.5ml, 1.0 ml

Conjugated protein: Protein A (extracellular), from S. aureus

Working dilution: 1:5-1:100

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


Protein A gold nanourchin conjugates are suitable for use in immunoblotting, light microscopy, SPR, and electron microscopy applications.

Advantages of Gold Conjugates

  • Sensitive technique (100pg or less in dot blotting when used together with our silver enhancement kit)
  • 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.