Product Overview
CSi300UM-10 Carboxyl Silica Microspheres are precision-engineered monodisperse silicon dioxide particles with a nominal diameter of 300 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 exhibit excellent particle size uniformity, high purity, low aggregation and outstanding suspension stability.
Supplied as a 2.5% aqueous suspension, CSi300UM-10 is particularly suitable for affinity chromatography, protein purification, enzyme immobilization, biosensor fabrication, immunodiagnostics and other biotechnology applications requiring large, highly uniform functional particles.
Key Features
Monodisperse 300 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 | CSi300UM-10 |
Material | Silicon Dioxide (SiO₂) |
Particle Size | 300 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
Affinity Chromatography
Affinity Purification
Biosensors
Molecular Diagnostics
Surface Modification
Biotechnology Research
Life Science Research
Product Advantages
CSi300UM-10 Carboxyl Silica Microspheres combine excellent particle size uniformity, high purity and abundant carboxyl functional groups. Their 300 μm diameter provides excellent mechanical strength, rapid settling characteristics and outstanding flow performance, making them ideal for affinity chromatography, protein purification, enzyme immobilization and laboratory process development. The carboxyl-functionalized surface supports efficient biomolecule coupling using standard EDC/NHS chemistry, while strict manufacturing standards ensure excellent batch-to-batch consistency and 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 CSi300UM-10?
CSi300UM-10 has a nominal particle diameter of 300 μm, providing excellent particle size uniformity and stable suspension performance.
How are biomolecules coupled to CSi300UM-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 CSi300UM-10 suitable for?
It is widely used for antibody immobilization, protein conjugation, enzyme immobilization, affinity chromatography, affinity purification, biosensors, molecular diagnostics and biotechnology research.
How should CSi300UM-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.
