Latex beads, amine-modified polystyrene, are widely used in biomedical research and diagnostics. They serve as solid supports for the immobilization of proteins, antibodies, and nucleic acids, making them essential in immunoassays and molecular detection techniques. These beads are also employed in cell separation and sorting processes, such as magnetic-activated cell sorting (MACS), due to their ability to bind specific cell types. In addition, they are utilized in drug delivery systems to enhance targeted therapy and controlled release of pharmaceutical agents. Their surface modification with amine groups allows for easy conjugation with various biomolecules, making them versatile tools in biotechnology and medical applications.