Modified Microspheres

Microsphere Modifications

Capture Reagents: Our microsphere modification services are customized to your needs. You can choose the volume, the xMAP microsphere designation, and the capture reagent. We are not limited to single source reagent manufacturers, so we will bulk couple the reagent of your choice, without regard to its original source.

Alternative Functionalities: We also provide various chemical modifications that give you even more options for assay development and optimization. We have developed several alternative surface chemistries that can be used for more specific research needs. The choice of chemical modification depends on the functionality of your capture reagent. The following table classifies the capture reagents that can be used for different assay formats.

Alternatively Functionalized Beads

Functionality Complementary Functionality Example Biomolecule Application Utility
Antibodies Antigens Proteins, peptides Immunoassays, enzyme activity assays Biomarker analysis and diagnosis
Antigens Antibodies Proteins, peptides Immunoassays, enzyme activity assays Diagnosis, serology, activity determination
Avidin — low capacity Biotin-conjugated molecules Proteins, peptides, Oligonucleotides Immunoassays, nucleic acid assays, receptor ligand assays, enzyme
activity assays
Expression analysis, detection, diagnosis, peptide screening, synthetic or recombinant antibody screening
Avidin — high capacity Biotin-conjugated molecules Proteins, peptides, oligonucleotides Immunoassays, nucleic acid assays, receptor ligand assays, enzyme activity assays Expression analysis, detection, diagnosis, peptide screening, synthetic or recombinant antibody screening
Hydrazide Carboxyl groups, aldehyde groups Proteins, peptides, glycoproteins, carbohydrates Immunoassays, receptor ligand assays Peptide screening, synthetic or recombinant antibody screening
Maleimide Sulfhydryl groups Proteins, peptides Immunoassays, receptor ligand assays Peptide screening, synthetic or recombinant antibody screening
Species-specific
anti-immunoglobulin
Antigen-specific antibody Restricted availability antibodies Immunoassays Antibody screening, vaccine efficacy testing


To place an order or for additional information, please email info@radixbiosolutions.com.