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    • 5. 发明申请
    • METHODS AND SYSTEMS FOR MULTIPLEXING IR-MEDIATED HEATING ON A MICROCHIP
    • 在微波炉上复合红外介质加热的方法和系统
    • WO2004033099A2
    • 2004-04-22
    • PCT/US2003/031806
    • 2003-10-08
    • UNIVERSITY OF VIRGINIA PATENT FOUNDATIONLANDERS, James, P.
    • LANDERS, James, P.
    • B01L
    • B01L3/5027B01L7/52B01L7/54B01L2200/147B01L2300/0803B01L2300/0829B01L2300/1838B01L2300/1844B01L2300/1872B01L2400/0409G01N2035/00415
    • The present invention relates to methods and systems for rapid multiplexed heating of a plurality of small volume samples on a microchip. More specifically, the present invention relates to methods and systems for non-contact temperature cycling of the samples using infrared (IR)-mediated heating of small, micro to nanoliter, volume samples, wherein each cycle can be completed in as little as a few seconds. Depending on the system used, the present invention involves a spinning microchip or an immobile microchip having a plurality of micro-heating areas thereon. In the case of the spinning chip, the micro-heating areas are located in a circular configuration on the chip, so the micro-heating areas can be accessed by static heating source(s) by spinning the microchip. In case of the immobile microchip, fiber optics are used to direct radiation from a heating source or multiple heating sources directly to the micro-heating areas on a microchip.
    • 本发明涉及用于在微芯片上快速复用加热多个小体积样品的方法和系统。 更具体地说,本发明涉及使用红外(IR)介导的小的,微至纳升的体积样品的加热样品的非接触温度循环的方法和系统,其中每个循环可以在少至几个 秒。 根据所使用的系统,本发明涉及一种纺丝微芯片或其上具有多个微加热区域的固定微芯片。 在纺丝芯片的情况下,微加热区域位于芯片上的圆形构造中,因此通过旋转微芯片可以通过静态加热源访问微加热区域。 在不动的微芯片的情况下,光纤用于将来自加热源或多个加热源的辐射直接引导到微芯片上的微加热区域。
    • 8. 发明申请
    • THERMAL EXPANSION-INDUCED FLUID CONTROL FOR MICROFLUIDIC DEVICES
    • 微流控装置的热膨胀流体控制
    • WO99039120A1
    • 1999-08-05
    • PCT/US1999/001831
    • 1999-01-28
    • B01L3/00F16K13/10C12Q1/68
    • F16K13/10B01L3/50273B01L2300/1872
    • A new method is proposed for the precise manipulation of picoliter-nanoliter volumes in microfluidic chips. The technique relies on the thermal expansion of fluids whereby fluid pressure and flow is easily manipulated through control of the fluid temperature. Heat can be efficiently applied in a sample manner using a light/infrared source (30) (e.g., a halogen lamp) which selectively heats the fluid (36) in the chip device through absorption of the optical energy in the visible-infrared (VIS/IR) portion of the electromagnetic spectrum. Several applications for fluid control and manipulation on microfluidic chips are proposed using the VIS/IR-induced fluid pumping mechanism, including valving.
    • 本发明涉及用于精确操纵微流控芯片中的皮升 - 纳升量的新方法。 该技术涉及流体的热膨胀,压力和流体流动通过调节流体的温度而容易地被操纵。 简单地借助于光/红外光源(30)(例如卤素灯)可以有效地施加热量,该光源/光源通过吸收芯片中的光能来选择性地加热芯片中的流体(36) 电磁波谱的可见 - 红外部分(VIS / IR)。 使用VIS / IR激活流体泵机构(包括阀门)可以在微流控芯片上实现多种流体控制和流体处理应用。