Particle manipulation system with cytometric confirmation
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United States of America Patent
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Oct 27, 2015
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app pub date -
Dec 12, 2013
filing date -
Aug 1, 2012
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Abstract
A MEMS-based particle manipulation system which uses a particle manipulation stage and a plurality of laser interrogation regions. The laser interrogation regions may be used to assess the effectiveness or accuracy of the particle manipulation stage. In one exemplary embodiment, the particle manipulation stage is a microfabricated valve, which sorts a target particle from non-target particles in a fluid stream. The laser interrogation stages are disposed in the microfabricated fluid channels at the input and output of the valve. By reversing the flow from output to input, the same laser interrogation region may be used to perform the cytometry. The cytometry may be performed throughout the sorting process to optimize or control the sorting, or may be performed afterward to allow a multi-pass, sequential sort to be performed on the same sample.
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