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❮ BioReady: Conjugation-Ready

BioReady Gold Nanospheres – Protein G

Protein G is covalently bound to the particle surface via an amide bond. 40 nm protein G gold conjugates can be used for convenient, high affinity binding to the Fc region of immunoglobulin G (IgG) from a variety of species. See the table below for an incomplete list of species’ IgG that Protein G binds.

Species Binding Strength to Total IgG
Human High
Mouse High
Rabbit High
Horse High
Rhesus Monkey High
Goat Medium
Rat Medium
Sheep Medium

Protein G gold conjugates are ideal for high sensitivity lateral flow assays (LFA), immunoblotting, immunohistochemistry (IHC), light microscopy, and electron microscopy applications. Learn more about BioReady Products for lateral flow and other diagnostic assays here.

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: AUPGR40-200U

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Specifications & CoA

TEM Diameter Size Distribution (CV) Example Certificate of Analysis
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40 nm ± 4 nm ≤ 15% Download Example CoA

Note: approximate ranges below are dependent on diameter

  • Hydrodynamic diameter (DLS): 50 to 75 nm
  • Zeta potential: < –10 mV
  • pH of solution: 6.8 to 8.2
  • Particle surface: Protein G
  • Solvent: 1× PBS, .5% BSA, and .05% azide
  • Peak wavelength (λmax): 520 to 530 nm

More Info & Documentation

nanoComposix University

AUIR 40nm

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