Nanoparticle Diameter: 7 nm Volume (@ 50 OD): 0.4 mL Gold nanoparticles functionalized with Azide-terminated polyethylene glycol (PEG). Can be covalently conjugated to DBCO-containing molecules in click chemistry reactions Core diameter: 4 nm – 200 nm Absorbance peak: 520 – 850 nm Shelf life: > 1 year (4°C storage) Supplied as liquid suspension in PBS