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Ultrasonic technique provides gentle cell manipulation

Gary Boas

Contactless three-dimensional trapping and manipulation of cells can be useful for various biological studies. Such manipulation is typically performed using dielectrophoresis – in which a nonuniform electric field exerts force on the cell – or using optical trapping. However, commercially available dielectrophoresis systems can damage cells after about 30 minutes, so their use is limited if long-term, gentle cell handling with high precision is required, such as for calcium signaling or protein trafficking studies. Optical trapping has similar limitations. Researchers at Royal Institute...Read full article

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    Published: October 2008
    biologicalBiophotonicsdielectrophoresisMicroscopyOptical trappingResearch & Technology

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