Gold nanoparticles functionalized with Streptavidin provide a versatile platform for direct conjugation to biotin-functionalized molecules or substrates. These particles can also be labeled with an optional fluorescent dye tag, expanding their utility in various research and diagnostic applications.

Key Features:

• Core Diameter: Ranging from 4 nm to 200 nm
• Absorbance Peak: Between 520 – 850 nm
• Stabilization: Features a 5 kDa PEG spacer and 2 kDa PEG backfill for enhanced stability.
• Storage: Shelf life greater than 4 months when stored at 4°C.
• Formulation: Supplied as a convenient liquid suspension in PBS.

This product is highly versatile and widely used in established applications such as:

• Immunodiagnostics: Enabling sensitive and specific detection methods.
• Lateral Flow Assays: Crucial for rapid diagnostic tests due to their strong signal properties.
• Biosensors: Utilized for developing highly sensitive and selective detection systems.

Nanoparticle Diameter Options: 4 nm, 7 nm, 15 nm, 30 nm, 45 nm, 60 nm, 80 nm, 100 nm, 150 nm, 200 nm
Fluorophore Options: AFDye 488, AFDye 555, AFDye 647, IR750, None
Volume Options (@ 10 OD): 1 mL, 3 mL

Gold nanoparticles functionalized with Streptavidin.

Can be directly conjugated to biotin-AF4unctionalized molecules or substrate
Can be labeled with an optional fluorescent dye tag

Core diameter: 4 nm – 200 nm
Absorbance peak: 520 – 850 nm
5 kDa PEG spacer, 2 kDa PEG backfill
Shelf life: > 4 months (4°C storage)
Supplied as liquid suspension in PBS