R & D Resourses

The basic principle of flow cytometry is the passage of cells in single file in front of a laser so they can be detected, counted and sorted.Cell components are fluorescently labelled and then excited by the laser to emit light at varying wavelengths.The fluorescence can then be measured to determine the amount and type of cells present in a sample.Up to thousands of particles per second can be analysed as they pass through the liquid stream.A beam of laser light is directed at a hydrodynamically-focused stream of fluid that carries the cells. Several detectors are carefully placed around the stream, at the point where the fluid passes through the light beam. The detectors therefore pick up a combination of scattered and fluorescent light. This data is then analyzed by a computer that is attached to the flow cytometer using special software.