40nm Gold Nanoparticles (10 OD)(AB269930)

Electron microscopy (TEM) images of 40nm Gold Nanoparticles (10 OD) (ab269930). Note the consistency of size and shape.

Size distribution of 40nm Gold Nanoparticles (10 OD) (ab269930) displaying a narrow size distribution with a CV (standard deviation / diameter) of less than 10%.

UV-Vis spectrum of 40nm Gold Nanoparticles (10 OD) (ab269930).

40nm Gold Nanoparticles (10 OD) (ab269930) is an aqueous suspension of spherical metallic nanoparticles manufactured to the highest standard to ensure: 

Uniform spherical shape

Narrow size distribution: 40nm ± 4 nm, <10% CV

Ultra high quality

Batch to batch consistency

High efficiency antibody binding for maximum sensitivity

Available at high concentrations to simplify assay development.

Our colloidal Gold Nanoparticles are suspended in citrate buffer and are suitable for: 

Protein adsorption

Oligonucleotide adsorption

Surface modifications.

Narrow size distribution and consistent shape is important and preferable for most applications. 

A consistent, spherical shape means that particles are less prone to aggregation, which can be a problem associated with gold nanoparticles. Furthermore uniform shape ensures consistent binding of antibodies, ensuring reliable assay results. 

Each batch of 40nm colloidal gold undergoes TEM analysis to ensure all the requirements are met. 

Mean diameter 36-44 nm

SD <4 nm

CV% <10%

Once the product is opened, it is recommended to use it within 6 months to ensure optimal performance.