Latex beads, amine-modified polystyrene, are widely used in biomedical research and diagnostics. They serve as excellent carriers for immobilizing biomolecules such as antibodies, proteins, and nucleic acids due to their amine functional groups, which enable covalent bonding. These beads are commonly employed in immunoassays, flow cytometry, and cell sorting applications, where their uniform size and surface properties ensure consistent and reliable results. Additionally, they are utilized in drug delivery systems to encapsulate and target therapeutic agents. Their biocompatibility and customizable surface chemistry make them valuable in studying cell interactions, protein binding, and diagnostic testing.