Gold nanoshells provide an ultra-sensitive label for lateral flow assays – up to 20× increases in lateral flow diagnostic sensitivity over 40 nm gold. Streptavidin tetramer is covalently bound to the particle surface via an amide bond. Streptavidin gold conjugates can be used for convenient conjugation of any biotinylated antibody, protein or oligonucleotide. Ideal for lateral flow assays and other diagnostics. Each batch is extensively characterized to meet highest quality standards, ensuring reliable & reproducible results. All products supplied with batch-specific COA's with TEM, DLS, Zeta, & UV-Vis.
TEM Diameter: 150 nm ± 15 nm
CV: ≤ 15%
Hydrodynamic diameter (DLS): 50 to 70 nm
Zeta potential: < –10 mV
pH of solution: 6.8 to 8.2
Particle surface: streptavidin
Solvent: 1× PBS, .5% BSA, and .05% azide
Peak wavelength (λmax): 520 to 530 nm