Product Overview

SHBC CAB200-10 Blue Carboxyl Microspheres are high-performance colored latex microspheres designed for lateral flow immunoassay (LFIA), immunochromatographic test development, and IVD diagnostic reagent manufacturing.

With a uniform particle size of 200nm, stable blue optical appearance, and abundant carboxyl (-COOH) functional groups on the surface, these microspheres provide efficient biomolecule coupling capability for antibodies, antigens, proteins, and other biological ligands.

CAB200-10 is specially developed for research institutions, diagnostic reagent companies, and industrial manufacturers requiring reliable raw materials for large-scale production of rapid diagnostic tests.

Key Features of CAB200-10 Blue Carboxyl Microspheres

Uniform 200nm Particle Size

CAB200-10 features highly uniform 200nm polystyrene microspheres with controlled particle size distribution, providing consistent migration performance and reliable signal generation in lateral flow assay platforms.

Carboxyl Functional Surface Modification

The surface contains abundant carboxyl groups that can be activated through EDC/NHS chemistry for covalent coupling with antibodies, proteins, peptides, or other biomolecules.

This enables stable conjugation and improves reproducibility during diagnostic reagent development.

Stable Blue Color Signal

The internally dyed blue microspheres provide clear visual detection signals without affecting surface coupling performance, making them suitable for qualitative and semi-quantitative immunochromatographic assays.

Excellent Batch Consistency

Manufactured under controlled polymerization processes, CAB200-10 delivers excellent particle uniformity and batch-to-batch consistency to support laboratory research and commercial IVD production.

Technical Specifications

Applications

Lateral Flow Immunoassay (LFIA)

CAB200-10 blue latex microspheres are widely used as colored labeling particles for lateral flow test strips, enabling visible detection of target analytes.

Typical applications include:

• Infectious disease rapid tests

• Food safety testing

• Veterinary diagnostics

• Biomarker detection

• Research-use diagnostic platforms

Antibody and Protein Conjugation

The carboxyl-functional surface enables covalent coupling with:

• Monoclonal antibodies

• Polyclonal antibodies

• Antigens

• Proteins

• Peptides

• Other biological molecules

IVD Diagnostic Reagent Development

CAB200-10 provides reliable raw materials for:

• Diagnostic reagent research

• Prototype assay development

• Pilot production

• Commercial IVD manufacturing

Advantages of CAB200-10 Blue Latex Microspheres

High Protein Coupling Efficiency

The abundant surface carboxyl groups provide active sites for biomolecule immobilization, improving conjugation efficiency and assay development flexibility.

Improved Signal Visualization

The stable blue color enables easy visual interpretation and supports rapid test development.

Reliable Manufacturing Quality

Strict production control ensures:

• Narrow particle size distribution

• Stable physical properties

• Good dispersion stability

• Consistent performance between batches

Customization Available

SHBC provides customized microsphere solutions according to customer requirements:

• Particle size customization

• Surface functional group modification

• Solid content adjustment

• Bulk production supply

Recommended Coupling Process

CAB200-10 carboxyl microspheres can be activated using standard EDC/NHS coupling chemistry.

Typical process:

1. Microsphere washing and dispersion

2. Carboxyl group activation using EDC/NHS

3. Antibody or protein coupling

4. Blocking treatment

5. Conjugate purification

6. Application in lateral flow test development

Why Choose SHBC Blue Carboxyl Microspheres?

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

Our CAB series microspheres provide:

✓ Stable 200nm particle size control
✓ Reliable 4% solid content formulation
✓ Carboxyl surface functionalization
✓ Support for LFIA and IVD development
✓ Research-to-production scale supply
✓ OEM and customized microsphere solutions

FAQ

What are CAB200-10 Blue Carboxyl Microspheres used for?

CAB200-10 is mainly used for lateral flow immunoassay development, antibody conjugation, IVD reagent research, and diagnostic test manufacturing.

What is the particle size of CAB200-10?

CAB200-10 Blue Carboxyl Microspheres have a controlled particle size of 200nm with high uniformity.

Can CAB200-10 be used for antibody coupling?

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

What is the solid content of CAB200-10?

CAB200-10 is supplied with 4% solid content for convenient formulation and assay development.

Do you provide bulk production of blue carboxyl microspheres?

Yes. SHBC supports laboratory research supply, pilot scale testing, and bulk production for diagnostic companies.