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Author Topic: Single cell injections- (Aug, 2010 bioscience headlines)  (Read 2679 times)
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Francis Umeoguaju
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« on: August 23, 2010, 08:56:04 am »


Single cell injections- (Aug, 2010 bioscience headlines)

Duke University physicists have developed a way to produce sharp fluid jets with enough precision that they can inject material into a single, living cell.

 The technique promises a way to deliver drugs to cells one at a time, which is likely to be very valuable for research involving stem cells and other cellular-level studies. The research appears in the current issue of the APS journal Physical Review Letters.

The physicists produced the jets by focusing lasers into a fluid surrounding a target cell. The lasers heated molecules of a blue dye dissolved in the fluid, which in turn created tiny bubbles to rapidly grow and collapse.

 When these sorts of bubbles are produced individually, they create shock waves that spread throughout the liquid. But producing two adjacent bubbles in rapid succession results in small, powerful jets capable of poking tiny holes, measuring only 0.2 millionths of a meter across, in cell membranes.

Accessed from <http://www.biologynews.net/archives/2010/08/09/single_cell_injections.html>

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