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Streptavidin Coated Plates
Streptavidin Coated Plates
Streptavidin-coated plates are specialized microplates pre-coated with streptavidin, a protein with high affinity for biotin. These plates are widely used in molecular biology, immunology, and diagnostic applications for immobilizing biotinylated molecules. The strong and specific streptavidin-biotin interaction provides a versatile platform for assays requiring biomolecule immobilization, signal detection, or amplification.
Content and Properties of Streptavidin-Coated Plates
- Material Composition:
- Plates are made of high-quality polystyrene, chosen for its chemical stability and suitability for surface coating.
- Streptavidin is immobilized via covalent or adsorption-based methods for long-term stability.
- Binding Capacity:
- High streptavidin density ensures efficient capture of biotinylated molecules.
- Uniform coating guarantees consistent assay performance.
- Well Formats:
- Available in 96-well, 384-well, and other configurations for various throughput requirements.
- Flat-bottom designs are most common, providing compatibility with plate readers.
- Color Variants:
- Transparent plates for colorimetric detection.
- White plates for luminescence assays to enhance signal reflection.
Applications of Streptavidin-Coated Plates
- Biomolecule Immobilization:
- Used to immobilize biotinylated antibodies, antigens, nucleic acids, or peptides for downstream assays.
- Enzyme-Linked Immunosorbent Assays (ELISA):
- Ideal for sandwich or competitive ELISA formats where biotinylated capture agents are used.
- Nucleic Acid Assays:
- Employed in hybridization-based assays, including biotinylated probe capture for DNA or RNA detection.
- Signal Amplification:
- Enables enhanced signal detection in luminescence or fluorescence assays through biotinylated reporter systems.
Streptavidin-coated plates are essential tools in molecular and immunological research. Their robust and specific interaction with biotinylated molecules makes them a cornerstone in a variety of biological assays, from basic research to clinical diagnostics.