SHBC Carboxyl Magnetic Beads

SHBC Carboxyl Magnetic Beads feature a unique sandwich structure with a porous polymer core, magnetic layer, and functional outer coating. Their abundant carboxyl groups enable stable covalent coupling with proteins, antibodies, peptides, and nucleic acids. The beads provide low non-specific adsorption, high sensitivity, rapid magnetic separation, and excellent batch consistency, making them ideal for chemiluminescent immunoassays, molecular diagnostics, and automated detection platforms.

The sandwich structure separates the magnetic material from the functional surface. This design improves buoyancy, ensures highly uniform particle size, minimizes non-specific adsorption, and allows flexible surface modification. As a result, assays achieve lower background signals, higher sensitivity, and better reproducibility than many conventional solid magnetic beads.

Yes. The abundant carboxyl groups can be activated using EDC/NHS chemistry to form stable amide bonds with primary amine-containing biomolecules such as antibodies, proteins, enzymes, peptides, and antigens. This provides efficient immobilization with high coupling efficiency and long-term stability for immunoassays and bioseparation.

SHBC provides multiple particle sizes including 0.5 μm, 1 μm, 2.8 μm and 5 μm. Different concentrations, surface functionalization options, and packaging volumes are available. Custom specifications can also be developed according to assay platforms and customer requirements.

Yes. The beads exhibit rapid magnetic response, excellent suspension stability, and narrow particle size distribution. These properties support consistent performance in automated chemiluminescence analyzers and high-throughput laboratory workflows while improving assay precision and processing efficiency.

Yes. After appropriate surface coupling or probe immobilization, SHBC Carboxyl Magnetic Beads are widely used for nucleic acid capture, DNA/RNA purification, molecular diagnostics, sequencing sample preparation, and other molecular biology applications requiring efficient magnetic separation.

The specially engineered surface coating minimizes non-specific adsorption while maintaining high coupling capacity. Combined with highly uniform particle size and stable magnetic response, this significantly reduces background noise and improves assay sensitivity, reproducibility, and signal consistency.

Typical applications include chemiluminescent immunoassays, immunoprecipitation, cell separation, protein purification, antibody immobilization, nucleic acid capture, molecular diagnostics, biosensors, and magnetic bioseparation. The beads are suitable for both research and commercial diagnostic reagent development.

Yes. SHBC offers OEM and ODM services, customized particle sizes, concentrations, packaging, and surface functionalization. Our technical team also supports customers with coupling optimization, application development, and scale-up production for diagnostic reagent manufacturing.

SHBC combines advanced manufacturing technology with strict quality control to deliver highly uniform magnetic beads with excellent reproducibility. We provide flexible customization, reliable supply capacity, responsive technical support, and cost-effective solutions for biotechnology companies, diagnostic manufacturers, and research institutions worldwide.