Product Overview

SHBC CAB300-10 Blue Carboxyl Microspheres are high-quality colored latex microspheres specifically designed for lateral flow immunoassay (LFIA), immunochromatographic reagent development, and IVD diagnostic manufacturing.

With a controlled particle size of 300nm, 4% solid content, and functional carboxyl groups on the surface, CAB300-10 provides excellent biomolecule coupling performance for antibodies, antigens, proteins, and other biological molecules.

The stable blue color signal and uniform particle distribution make CAB300-10 an ideal labeling material for rapid diagnostic test development and large-scale production of immunochromatographic products.

Key Features of CAB300-10 Blue Carboxyl Microspheres

Uniform 300nm Particle Size

CAB300-10 features highly uniform 300nm latex microspheres with controlled particle size distribution.

The consistent particle size helps improve migration performance, conjugate stability, and assay reproducibility in lateral flow platforms.

Carboxyl Functional Surface for Efficient Coupling

The microsphere surface contains abundant carboxyl (-COOH) groups that can be activated using EDC/NHS chemistry.

This enables stable covalent coupling with:

• Antibodies

• Antigens

• Proteins

• Peptides

• Other biomolecules

Stable Blue Optical Signal

The internally dyed blue polymer microspheres provide strong and stable visual signals for immunochromatographic detection.

They are suitable for qualitative and semi-quantitative lateral flow assay applications.

Reliable Batch-to-Batch Consistency

CAB300-10 is manufactured through controlled polymerization technology to ensure:

• Uniform particle size

• Stable surface properties

• Good dispersion stability

• Consistent assay performance

Technical Specifications

Applications

Lateral Flow Immunoassay (LFIA)

CAB300-10 Blue Carboxyl Microspheres are widely used as colored labeling particles in lateral flow test strips.

Applications include:

• Infectious disease detection

• Food safety testing

• Veterinary diagnostics

• Biomarker detection

• Research-use diagnostic products

Antibody and Protein Conjugation

The carboxyl functional surface provides reactive sites for biomolecule immobilization.

CAB300-10 can be used for coupling:

• Monoclonal antibodies

• Polyclonal antibodies

• Antigens

• Proteins

• Nucleic acid related molecules

IVD Reagent Development and Manufacturing

CAB300-10 supports customers from laboratory research to commercial production.

Suitable for:

• Diagnostic reagent developers

• Biotechnology companies

• Research institutes

• IVD manufacturers

Advantages of CAB300-10 Blue Latex Microspheres

High Coupling Efficiency

The surface carboxyl groups provide excellent conjugation capability, improving biomolecule immobilization efficiency.

Good Dispersion Stability

Uniform particle morphology helps maintain stable suspension performance during storage and formulation.

Flexible Customization

SHBC provides customized microsphere solutions including:

• Particle size adjustment

• Surface functional modification

• Solid content customization

• Bulk production service

Antibody Coupling Procedure

Typical coupling process:

Step 1

Disperse and wash CAB300-10 microspheres.

Step 2

Activate carboxyl groups using EDC/NHS chemistry.

Step 3

Add antibody or protein for covalent coupling.

Step 4

Perform blocking and purification.

Step 5

Apply conjugates in lateral flow assay development.

Why Choose SHBC CAB300-10 Blue Carboxyl Microspheres?

SHBC specializes in functional polymer microspheres and diagnostic raw materials for biotechnology applications.

Advantages include:

✓ Professional microsphere manufacturing experience
✓ Stable 300nm particle size control
✓ 4% solid content formulation
✓ Support for LFIA and IVD applications
✓ Reliable batch consistency
✓ OEM and customized production service

FAQ

What are CAB300-10 Blue Carboxyl Microspheres used for?

CAB300-10 is mainly used for lateral flow immunoassay development, antibody conjugation, diagnostic reagent research, and IVD manufacturing.

What is the particle size of CAB300-10?

CAB300-10 Blue Carboxyl Microspheres have a controlled particle size of 300nm.

What is the solid content of CAB300-10?

CAB300-10 is supplied with 4% solid content for convenient reagent development and production.

Can CAB300-10 be used for antibody coupling?

Yes. The surface carboxyl groups allow antibody and protein coupling through EDC/NHS activation chemistry.

Do you provide bulk production of Blue Carboxyl Microspheres?

Yes. SHBC provides laboratory-scale samples, pilot production, and industrial bulk supply for diagnostic companies.