Product Overview
ESi50UM-10 Epoxy Silica Microspheres are precision-engineered monodisperse silicon dioxide particles with a nominal diameter of 50 μm. Their surfaces are functionalized with highly reactive epoxy groups, enabling direct covalent immobilization of proteins, antibodies, enzymes, peptides and other biomolecules without additional activation steps. Manufactured under strict quality control, these microspheres provide excellent particle size uniformity, high purity, low aggregation and outstanding suspension stability.
Supplied as a 2.5% aqueous suspension, ESi50UM-10 is widely used in protein immobilization, affinity purification, immunodiagnostics, biosensor fabrication, molecular diagnostics and biotechnology research.
Key Features
Monodisperse 50 μm particle size
Epoxy-functionalized surface
High purity silicon dioxide
Highly reactive epoxy groups
Excellent dispersion stability
Uniform spherical morphology
Low particle aggregation
Excellent chemical stability
Excellent batch-to-batch consistency
Suitable for research and industrial applications
Technical Specifications
Parameter | Specification |
|---|
Product Code | ESi50UM-10 |
Material | Silicon Dioxide (SiO₂) |
Particle Size | 50 μm |
Surface | Epoxy |
Solid Content | 2.5% Suspension |
Dispersion Medium | Deionized Water |
Appearance | White Aqueous Suspension |
Storage | 2–8°C |
Packaging | 10 mL / 20 mL / 100 mL |
Applications
Protein Immobilization
Antibody Immobilization
Enzyme Immobilization
Affinity Purification
Biosensors
Immunoassays
Molecular Diagnostics
Surface Modification
Biotechnology Research
Life Science Research
Product Advantages
ESi50UM-10 Epoxy Silica Microspheres combine excellent particle size uniformity, high purity and highly reactive epoxy functional groups. Their 50 μm diameter offers excellent mechanical strength and handling performance while providing a stable support for biomolecule immobilization. The epoxy-functionalized surface reacts directly with amino, sulfhydryl and hydroxyl groups under mild reaction conditions, enabling efficient covalent attachment without additional activation. Strict manufacturing standards ensure excellent batch-to-batch consistency and highly reproducible experimental results.
Storage and Handling
Store at 2–8°C.
Do not freeze.
Keep the container tightly closed.
Gently invert before use.
Avoid repeated freeze-thaw cycles.
Protect from direct sunlight.
Use clean laboratory equipment during handling.
Customization Service
SANYU GROUP provides customized epoxy silica microspheres including:
Customized particle sizes
Customized solid content
Epoxy group density adjustment
Amino surface modification
Carboxyl surface modification
OEM manufacturing
Bulk production
Custom packaging
Frequently Asked Questions (FAQ)
What are Epoxy Silica Microspheres?
Epoxy Silica Microspheres are monodisperse silica particles with epoxy functional groups on their surfaces, designed for direct covalent immobilization of biomolecules.
What is the particle size of ESi50UM-10?
ESi50UM-10 has a nominal particle diameter of 50 μm, providing excellent particle size uniformity and stable suspension performance.
How are biomolecules coupled to ESi50UM-10?
The surface epoxy groups react directly with amino, sulfhydryl and hydroxyl groups on proteins, antibodies, enzymes and other biomolecules to form stable covalent bonds under mild reaction conditions.
What applications is ESi50UM-10 suitable for?
It is widely used for protein immobilization, antibody conjugation, enzyme immobilization, affinity purification, immunoassays, biosensors, molecular diagnostics and biotechnology research.
How should ESi50UM-10 be stored?
Store at 2–8°C, avoid freezing, keep the container tightly sealed and gently invert before use to maintain optimal dispersion stability.
