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Counterflow centrifugation elutriation : ウィキペディア英語版 | Counterflow centrifugation elutriation
Counterflow Centrifugation Elutriation (CCE) is a cell separating technique. This method enables scientists to separate different cells with different sizes. Since cell size is correlated with cell cycle stages this method also allows the separation of cells at different stages of the cell cycle. ==Principle== The key concept is that larger cells tend to stay within the flowing buffer solution while smaller cells will be washed away follow the buffer solution (different sedimentation property within the buffer solution), and cells will have different sedimentation properties in different cell cycle stages. The basic principle of separating the cells inside CCE is the balance between centrifugal force and the counter flow drag force. When the cells enter the elutriation chamber, all the cells will stay at the outer edge of the chamber due to centrifugal force. Then when we increase the flow rate of the buffer solution, due to the special design of the CCE, the solution tends to push the cells towards the middle of the CCE: we call this counter flow drag force. As the flow rate of the buffer solution increase, when the counter flow drag force outweigh the centrifugal force the smaller cells will be driven by the net force and leave the chamber first. In contrast the larger cells will stay within the elutriation chamber. So the cells escape from the elutriation chamber can be collected in the exit of the system.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Counterflow centrifugation elutriation」の詳細全文を読む
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