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    • 4. 发明授权
    • Microfluidic methods
    • 微流控方法
    • US08672532B2
    • 2014-03-18
    • US12642665
    • 2009-12-18
    • Stevan B. JovanovichWilliam D. NielsenMichael Van Nguyen
    • Stevan B. JovanovichWilliam D. NielsenMichael Van Nguyen
    • B01F5/06
    • B01F5/06B01F11/0045B01F13/0059F16K99/0001F16K99/0015F16K99/0036F16K99/0046F16K99/0059Y10T137/0318Y10T137/87153Y10T137/877
    • This invention provides microfluidic devices that comprise a fluidics layer having microfluidic channels and one or more regulating layers that regulate the movement of fluid in the channels. The microfluidic devices can be used to mix one or more fluids. At least a portion of the fluidics layer can be isolated from the regulating layer, for example in the form of a shelf. Such isolated portions can be used as areas in which the temperature of liquids is controlled. Also provided are instruments including thermal control devices into which the microfluidic device is engaged so that the thermal control device controls temperature in the isolated portion, and a movable magnetic assembly including magnets with shields so that a focused magnetic field can be applied to or withdrawn from the isolated portion or any other portion of the microfluidic device. Also provided are methods of mixing fluids. The methods include stacking a plurality of alternating boluses of different liquids in a microfluidic channel, and moving the stacked boluses through the channel. In another method, the boluses are moved into a diaphragm valve having a volume able to accommodate several boluses, and then pumping the liquids out of the valve.
    • 本发明提供了微流体装置,其包括具有微流体通道的流体层和调节通道中的流体运动的一个或多个调节层。 微流体装置可以用于混合一种或多种流体。 流体层的至少一部分可以与调节层隔离,例如以搁板的形式。 这种隔离部分可以用作控制液体温度的区域。 还提供了包括热控制装置的仪器,其中微流体装置被接合到其中,使得热控制装置控制隔离部分中的温度,以及可移动磁性组件,其包括具有屏蔽的磁体,使得可以将聚焦磁场施加到或从 微流体装置的隔离部分或任何其它部分。 还提供了混合流体的方法。 这些方法包括在微流体通道中堆叠多个不同液体的交替喷射,并且通过通道移动堆叠的推注。 在另一种方法中,将大团块移动到具有能够容纳多次喷射的体积的隔膜阀中,然后将液体泵出阀。