Streptavidin Fluorescent Nanobeads

Advance your biotin-based assays with our Streptavidin Fluorescent Nanobeads, engineered to deliver exceptional binding performance and reliable fluorescence. These silica nanobeads feature a sophisticated design with the fluorescent dye securely enclosed inside, while the porous surface is meticulously functionalized with streptavidin to optimize biotin binding.

The streptavidin-biotin interaction is one of the strongest known non-covalent interactions, which provides high specificity and stability. This robust affinity makes our nanobeads an ideal choice for applications requiring precise and stable binding, ensuring that biotinylated molecules are securely captured and detected.

Key Features

• Superior Streptavidin Functionality: Streptavidin’s high affinity for biotin provides unparalleled specificity and stability, ensuring accurate and reproducible results in your assays.
• Encapsulated Fluorescence: Fluorescent dye covalently bonded within the silica bead offers exceptional photostability and protection from quenching.
• High Binding Capacity: The porous surface increases the availability of streptavidin binding sites, maximizing the bead’s functional capacity.
• Versatile Application Range: Perfect for use in flow cytometry, fluorescence microscopy, ELISA, and more.
• Durable Silica Structure: The silica core ensures stability and uniformity, contributing to consistent performance across various experimental conditions.

Applications

• Signal Amplification: Utilize streptavidin’s multiple binding sites for biotinylated molecules to amplify signals in immunoassays.
• Enhanced Detection: Leverage the strong biotin-streptavidin interaction for sensitive and specific detection in fluorescence-based assays.
• Molecular Tracking: Achieve precise labeling and tracking of biotinylated proteins, antibodies, and nucleic acids in live-cell imaging.

Available Formats

FITC Nanobeads:

• • • Excitation: 488 nm
    • Emission: 520 nm

Cy5 Nanobeads:

• • • Excitation: 646 nm
    • Emission: 670 nm

Specifications

• • Streptavidin Conjugation: High-affinity binding to biotin
  • Material: Silica
  • Size: 400 – 500 um
  • Stability: Stable for up to 12 months under proper storage conditions.

Storage Conditions

• • Store at 2-8°C, protected from light.
  • Do not freeze.
  • Ensure that the beads are well suspended before use.