Product Overview
CSi50UM-10 Carboxyl Silica Microspheres are precision-engineered monodisperse silicon dioxide particles with a nominal diameter of 50 μm. Their surfaces are functionalized with stable carboxyl (-COOH) groups, providing abundant reactive sites for covalent coupling of antibodies, proteins, peptides, enzymes and nucleic acids. Manufactured under strict quality control, these microspheres offer excellent particle size uniformity, high purity, low aggregation and outstanding suspension stability.
Supplied as a 2.5% aqueous suspension, CSi50UM-10 is widely used in immunodiagnostics, protein immobilization, biosensor fabrication, molecular diagnostics, cell separation research and surface chemistry applications.
Key Features
Monodisperse 50 μm particle size
Carboxyl (-COOH) functionalized surface
High purity silicon dioxide
Excellent dispersion stability
Uniform spherical morphology
Low particle aggregation
High density of reactive carboxyl groups
Excellent chemical stability
Excellent batch-to-batch consistency
Suitable for research and industrial applications
Technical Specifications
Parameter | Specification |
|---|
Product Code | CSi50UM-10 |
Material | Silicon Dioxide (SiO₂) |
Particle Size | 50 μm |
Surface | Carboxyl (-COOH) |
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
Antibody Immobilization
Protein Conjugation
Enzyme Immobilization
Immunoassays
Molecular Diagnostics
Biosensors
Cell Separation Research
Surface Modification
Biotechnology Research
Life Science Research
Product Advantages
CSi50UM-10 Carboxyl Silica Microspheres combine excellent particle size uniformity, high purity and abundant carboxyl functional groups. Their 50 μm diameter provides excellent handling characteristics and a large reactive surface for efficient covalent coupling of antibodies, proteins, enzymes and peptides through standard EDC/NHS chemistry. These microspheres are widely used in immunoassays, biosensor development, molecular diagnostics and biotechnology research. Strict manufacturing standards ensure excellent batch-to-batch consistency and highly reproducible experimental performance.
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 carboxyl silica microspheres including:
Customized particle sizes
Customized solid content
Carboxyl group density adjustment
Amino surface modification
Epoxy surface modification
OEM manufacturing
Bulk production
Custom packaging
Frequently Asked Questions (FAQ)
What are Carboxyl Silica Microspheres?
Carboxyl Silica Microspheres are monodisperse silica particles with carboxyl (-COOH) functional groups on their surfaces for efficient covalent coupling of biomolecules.
What is the particle size of CSi50UM-10?
CSi50UM-10 has a nominal particle diameter of 50 μm, providing excellent particle size uniformity and stable dispersion.
How are biomolecules coupled to CSi50UM-10?
The surface carboxyl groups can be activated using standard EDC/NHS chemistry, enabling stable covalent attachment of antibodies, proteins, enzymes, peptides and nucleic acids.
What applications is CSi50UM-10 suitable for?
It is widely used for antibody immobilization, protein conjugation, enzyme immobilization, immunoassays, biosensors, molecular diagnostics and biotechnology research.
How should CSi50UM-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.
