Latex beads, amine-modified polystyrene, are widely used in biomedical research and diagnostics due to their ability to bind biomolecules. They serve as solid supports for immobilizing proteins, antibodies, and nucleic acids, making them essential in immunoassays, cell separation, and targeted drug delivery systems. Their amine groups enable covalent attachment of biomolecules, enhancing specificity and efficiency in applications like flow cytometry, microscopy, and biosensors. Additionally, these beads are utilized in environmental monitoring for detecting pollutants and in material science for creating functionalized surfaces and coatings. Their versatility and stability make them valuable in both research and industrial settings.