50nm NHS-Activated Gold Nanoparticle Conjugation Kit (3 Reactions) media thumbnails
50nm NHS-Activated Gold Nanoparticle Conjugation Kit (3 Reactions)-1
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50nm NHS-Activated Gold Nanoparticle Conjugation Kit (3 Reactions)

SKU: CGN10K-50-1

$180.00

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OPTIONAL: No Validation Kit

Cytodiagnostics 50nm NHS-activated Gold Nanoparticle Conjugation Kit have been optimized for high efficiency one-step covalent conjugation of proteins and other primary amine-containing ligands to gold nanoparticles.

The kit contains ready-to-use pre-made mixtures. No activation or manipulation of the gold nanoparticles is required prior to conjugation, which often results in poor performing conjugates. Simply mix your protein with the pre-activated NHS ester gold nanoparticles supplied in the kit. 

This mini kit contains 3 individual reaction vials with lyophilized NHS-activated gold nanoparticles for performing three independent conjugation reactions.

Kit Components

  • 50nm NHS-Activated Gold Nanoparticles (lyophilized) - 3 vials
  • Protein Resuspension Buffer - 1.5ml
  • Reaction Buffer - 1.5ml
  • Quencher Solution - 1.5ml

Features & Benefits

  • Results in covalently bound ligand and more stable conjugate.
  • Fast and convenient one-step conjugation reaction with no pre-activation requirements.
  • Spacer between the gold nanoparticle surface and conjugated ligand minimizes effects on the tertiary protein structure, which can lead to poor performing conjugates, a common problem seen in conjugates prepared by passive adsorption.
  • Precisely engineering surface coating that reduces non-specific protein binding in biological assays.

Gold Nanoparticle Specifications

Surface functionality: NHS-ester (~ 1 NHS group/nm2) (10kDa PEG-spacer between gold surface and NHS-group)

Core diameter: 50nm 

Concentration: OD=20 (when dissolved to a final volume of 100ul)

Particles per ml: ~7.02E+11 (when dissolved to a final volume of 100ul)

Absorbance (lambda max): 535nm

50nm gold nanoparticles UV-VIS spectrum

Diameter  Peak SPR Wavelength (nm) NPS/ml* Wt. Conc. (mg/ml)* Molar Ext. (M-1cm-1) Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration*
50 535 3.512E+10 4.45E-02 1.72E+10 <12% 6.54E+04 7.85E+03 0.12 1.27E-15 7.64E+08 5.83E-11

* All concentrations as indicated at an optical density of 1 (OD=1, i.e. absorbance at peak SPR wavelength with a 1cm pathlength)