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    • 5. 发明授权
    • System for visual indication of mechanical damage
    • 机械损伤视觉指示系统
    • US08846404B2
    • 2014-09-30
    • US13168166
    • 2011-06-24
    • Susan A. OdomMary M. CarusoAaron D. FinkeAaron C. JacksonJeffrey S. MooreNancy R. SottosScott R. White
    • Susan A. OdomMary M. CarusoAaron D. FinkeAaron C. JacksonJeffrey S. MooreNancy R. SottosScott R. White
    • G01N31/22G01N21/78B29C73/22
    • G01N21/78
    • A self-indicating material system may include a solid polymer matrix having a first color, a first plurality of capsules in the matrix, and a plurality of particles in the matrix. The first plurality of capsules includes a first reactant, and the plurality of particles includes a second reactant, which forms a product when in contact with the first reactant. When a crack forms in the polymer matrix, at least a portion of the first plurality of capsules is ruptured, the first and second reactants form the product in the matrix, and the portion of the polymer matrix containing the product has a second color different from the first color. A self-indicating material system may include a solid polymer matrix, a plurality of capsules in the matrix, and an activator in the matrix, where the polymer matrix includes a first polymer and has a first color, the plurality of capsules includes a polymerizer, and the activator is an activator for the polymerizer. When a crack forms in the polymer matrix, at least a portion of the plurality of capsules is ruptured, the polymerizer and the activator form a second polymer in the crack, and the second polymer has a second color different from the first color.
    • 自指示材料系统可以包括具有第一颜色的固体聚合物基质,基质中的第一多个胶囊和基质中的多个颗粒。 第一多个胶囊包括第一反应物,并且多个颗粒包括第二反应物,其在与第一反应物接触时形成产物。 当在聚合物基体中形成裂纹时,第一多个胶囊的至少一部分破裂,第一和第二反应物在基质中形成产物,并且含有产物的聚合物基质的部分具有不同于 第一种颜色。 自指示材料系统可以包括固体聚合物基质,基质中的多个胶囊和基质中的活化剂,其中聚合物基质包括第一聚合物并且具有第一颜色,所述多个胶囊包括聚合反应器, 并且活化剂是聚合反应器的活化剂。 当在聚合物基质中形成裂纹时,多个胶囊的至少一部分破裂,聚合器和活化剂在裂纹中形成第二聚合物,并且第二聚合物具有与第一颜色不同的第二颜色。
    • 8. 发明授权
    • Method and structure for microfluidic flow guiding
    • 微流体导流的方法和结构
    • US06821485B2
    • 2004-11-23
    • US10071846
    • 2002-02-08
    • David J. BeebeJeffrey S. MooreBin Zhao
    • David J. BeebeJeffrey S. MooreBin Zhao
    • B01L302
    • B82Y30/00B01L3/5027B01L3/502707B01L2300/089B01L2400/0672Y10T436/11Y10T436/117497Y10T436/118339Y10T436/2575
    • A flow of liquids is carried out on a microscale utilizing surface effects to guide the liquid on flow paths to maintain laminar flow. No sidewall confining structure is required, minimizing resistance to flow and allowing laminar flow to be maintained at high flow rates. The guiding structure has flow guiding stripes formed on one or both of facing base and cover surfaces which are wettable by a selected liquid to direct the liquid from a source location to a destination location. The regions adjacent to the guiding stripes on the base and cover surfaces are non-wettable. The smooth interface between the gas and liquid along the flowing stream allows gas-liquid reactions to take place as a function of diffusion across the interface without mixing of the gas and liquid. Liquid-liquid flows may also be guided with such structures.
    • 使用表面效应在微尺度上进行液体流动以将液体引导到流动路径上以保持层流。 不需要侧壁约束结构,使流动阻力最小化,并允许层流维持在高流速。 引导结构具有形成在一个或两个相对的基底和盖表面上的流动引导条纹,其可被选定的液体润湿以将液体从源位置引导到目的地位置。 在基部和盖表面上与引导条相邻的区域是不可润湿的。 沿着流动流动的气体和液体之间的平滑界面允许气 - 液反应作为扩散跨越界面而发生,而不会混合气体和液体。 液 - 液流也可以用这种结构引导。
    • 9. 发明授权
    • Self-regulating microfluidic device and method of using the same
    • 自调节微流体装置及其使用方法
    • US06523559B2
    • 2003-02-25
    • US09917523
    • 2001-07-27
    • David J. BeebeJeffrey S. MooreRobin LiuDavid T. Eddington
    • David J. BeebeJeffrey S. MooreRobin LiuDavid T. Eddington
    • G05D1103
    • G05D11/08G05D21/00Y10T137/0329Y10T137/2509
    • In accordance with the present invention, a microfluidic device and method of using the same is provided for self-regulating the flow of fluid therethrough. The microfluidic device includes a body defining first and second flow channels. The first flow channel has an input for receiving the fluid and an output. The second flow channel has an input for receiving a compensating fluid to modify the value of the property of the fluid and an output communicating with the first flow channel. A polymeric material is disposed in the first flow channel downstream of the output of the second flow channel. The polymeric material has a volume responsive to the value of the property of the fluid. A valve is disposed in the second flow channel and is movable in response to the volume of the material. The valve is movable between the first open position allowing the compensating fluid to flow past the valve into the first flow channel and a second closed position limiting the flow of compensating fluid therepast.
    • 根据本发明,提供了一种微流体装置及其使用方法,用于自我调节流体的流动。 微流体装置包括限定第一和第二流动通道的主体。 第一流道具有用于接收流体和输出的输入。 第二流动通道具有用于接收补偿流体以修改流体性质的值的输入和与第一流动通道连通的输出。 聚合材料设置在第二流动通道的第二流动通道的输出的下游。 聚合物材料具有响应于流体性质的值的体积。 阀设置在第二流动通道中并且可以响应于材料的体积而移动。 所述阀可在所述第一打开位置和所述第一关闭位置之间移动,所述第一打开位置允许所述补偿流体流过所述阀进入所述第一流动通道,以及限制所述补偿流体的流动的第二关闭