Voila Scientific Needs

Particle Science & Technology Solutions

Bioconjugation

Gold nanospheres for conjugation

40nm gold nanospheres for conjugation

Gold nanoshells for conjugation

150nm gold nanoshells for conjugation

BioReady Nanoparticles are Gold Nanoparticles specifically engineered for lateral flow and bioconjugation. Two kinds of base nanoparticles for lateral flow, are available from nanoComposix; 40 nm Gold Nanospheres (Current Industry Standard) and 150 nm Gold Nanoshells; a patented product of nanoComposix, offering increased sensitivity, considered as the future standard.

40nm gold nanospheres for conjugation

These are the most commonly used nanoparticles for lateral flow assays due to having an optimal surface area and absorption around 523 nm, which appears ruby red to the eye. We sell 40 nm gold nanospheres that can be conjugated as well as spheres that are already conjugated to streptavidin.

  • Available in (volume): 25 ml, 100 ml, 1000 ml quantities
  • All BioReady products are specially formulated for lateral flow and biodiagnostics
  • Surface: Carbonate, provided at 4 ± 0.15 OD in aqueous carbonate.
  • Mean diameter: 40 ± 4 nm
  • Size distribution (CV) < 15%

150 nm gold nanoshells for conjugation

These functionalized nanoshells are proprietary to nanoComposix and can increase the sensitivity of your lateral flow assay up to 20x. The gold nanoshells have a much larger diameter than 40 nm gold nanoparticles but flow unimpeded through the nitrocellulose membrane. Because each particle has a higher optical density relative to 40 nm gold particles, fewer binding events are required in order to see the test line in a lateral flow test.

The gold nanoshells have the same gold surface as traditional 40 nm spherical gold nanoparticles, so only minor modifications to existing 40 nm gold protocols are required. We sell 150 nm gold nanoshells that can be conjugated as well as shells that are already conjugated to streptavidin

  • Available in (reaction kits): Small Reaction Kit: 3 Units, Small Reaction Kit: 3 Units with 3 Spin Filters, Small Reaction Kit: 10 Units, Small Reaction Kit: 10 Units with 10 Spin Filters, Large Reaction Kit: 1 Unit, Large Reaction Kit: 1 Unit with 1 Spin Filter
  • All BioReady products are specially formulated for lateral flow and biodiagnostics
  • Surface: NHS, provided as a dried powder with reaction kit components included (small reaction kits reconstitute to 50 μL of 20 OD gold for each unit; large reaction kits reconstitute to 500 μL of 20 OD gold for each unit)
  • Mean diameter: 40 ± 4 nm
  • Size distribution (CV) < 15%