Latex beads, amine-modified polystyrene, are widely used in biomedical research and diagnostics due to their unique surface properties. The amine groups on the surface allow for easy conjugation with biomolecules such as antibodies, proteins, or nucleic acids, making them ideal for applications like immunoassays, cell sorting, and targeted drug delivery. They are also employed in flow cytometry as calibration standards or for capturing specific cell types. In addition, these beads are utilized in the development of biosensors, where they enhance sensitivity and specificity by immobilizing recognition elements. Their uniform size and surface functionality make them valuable tools in nanotechnology and material science for creating structured composites or coatings.