Widely used in diagnostic assays and bioanalytical applications due to their strong binding affinity for biotinylated molecules. These non-magnetic microspheres serve as solid supports in immunoassays, enabling efficient capture and detection of target analytes when combined with biotin-labeled antibodies or probes. Commonly employed in lateral flow tests, flow cytometry, and separation workflows, they enhance signal detection and assay sensitivity. Their uniform surface allows consistent conjugation and reproducible performance in automated platforms. Frequently used in point-of-care testing and high-throughput screening where reliable biomolecule immobilization is critical.