40 nm BioReady Gold Nanospheres for Covalent Conjugation, AUXR40-100M (CAT#: STEM-NSP-0455-LC)

40 nm spherical gold nanoparticles for covalent conjugation combine strong plasmonic optical properties with readily biofunctionalized surface chemistry. These nanoparticles are used in applications such as immunodiagnostics, lateral flow assays, biosensors, and more.

BioReady Gold Nanospheres have carboxyl covalently bound to the metal surface. Antibodies and other amine-containing biomolecules efficiently bind to carboxyl gold nanospheres using EDC-NHS chemistry to make highly stable conjugates. Review our conjugation protocol or contact our experts for support.

Surface: Carboxyl
Description: Covalently bound. Conjugatable surface.
Solvent: USP Purified Water
Surface chemistry: PEG12-carboxylic acid
TEM Diameter: 40 ± 4 nm
CV: ≤ 15%
Concentration: 20 OD
Hydrodynamic diameter (DLS): TEM diameter + 0–30 nm
Zeta potential: ≤ –25 mV
pH of solution: 5.5–7.0
Peak wavelength (λmax): 720–550 nm
Volume: 100 mL