Cell separation is a laboratory technique used to isolate specific types of cells from a mixed population. This process is essential for various applications, including research, diagnostics, and therapeutic development. Techniques such as flow cytometry and magnetic-activated cell sorting (MACS) are commonly employed to achieve precise separation based on cell size, surface markers, or other characteristics. The ability to separate cells allows scientists to study their functions, behaviors, and interactions in detail. It also plays a crucial role in medical treatments, such as stem cell therapy and cancer immunotherapy, where specific cell types are needed for effective outcomes.