Microfluidic apparatus with integrated porous-substrate/sensor for real-time (bio)chemical molecule detection
    72.
    发明授权
    Microfluidic apparatus with integrated porous-substrate/sensor for real-time (bio)chemical molecule detection 有权
    具有用于实时(生物)化学分子检测的集成多孔底物/传感器的微流体装置

    公开(公告)号:US08153079B2

    公开(公告)日:2012-04-10

    申请号:US10856372

    申请日:2004-05-27

    IPC分类号: B01L3/00

    摘要: Microfluidic apparatus including integrated porous substrate/sensors that may be used for detecting targeted biological and chemical molecules and compounds. In one aspect, upper and lower microfluidic channels are defined in respective halves of a substrate, which are sandwiched around a porous membrane upon assembly. In other aspect, the upper and lower channels are formed such that a portion of the lower channel passes beneath a portion of the upper channel to form a cross-channel area, wherein the membrane is disposed between the two channels. In various embodiments, one or more porous membranes are disposed proximate to corresponding cross-channel areas defined by one or more upper and lower channels. The porous membrane may also have sensing characteristics, such that it produces a change in an optical and/or electronic characteristic. Accordingly, the apparatus may further include instrumentation or detection equipment to measure the changes, such as optic-based detectors and electronic instrumentation.

    摘要翻译: 微流体设备包括可用于检测目标生物和化学分子和化合物的综合多孔底物/传感器。 在一个方面,上和下微流体通道限定在基底的相应的两半中,其在组装时夹在多孔膜周围。 在另一方面,上通道和下通道形成为使得下通道的一部分穿过上通道的一部分以形成交叉通道区域,其中隔膜设置在两个通道之间。 在各种实施例中,一个或多个多孔膜设置在由一个或多个上部和下部通道限定的相应交叉通道区域附近。 多孔膜也可以具有感测特性,使得其产生光学和/或电子特性的变化。 因此,该装置还可以包括用于测量变化的仪器或检测设备,例如基于光学的检测器和电子仪器。

    Metal coated nanocrystalline silicon as an active surface enhanced Raman spectroscopy (SERS) substrate
    75.
    发明授权
    Metal coated nanocrystalline silicon as an active surface enhanced Raman spectroscopy (SERS) substrate 有权
    金属涂层纳米晶硅作为活性表面增强拉曼光谱(SERS)底物

    公开(公告)号:US06970239B2

    公开(公告)日:2005-11-29

    申请号:US10171357

    申请日:2002-06-12

    摘要: The methods and apparatus 300 disclosed herein concern Raman spectroscopy using metal coated nanocrystalline porous silicon substrates 240, 340. In certain embodiments of the invention, porous silicon substrates 110, 210 may be formed by anodic etching in dilute hydrofluoric acid 150. A thin coating of a Raman active metal, such as gold or silver, may be coated onto the porous silicon 110, 210 by cathodic electromigration or any known technique. The metal-coated substrate 240, 340 provides an extensive, metal rich environment for SERS, SERRS, hyper-Raman and/or CARS Raman spectroscopy. In certain embodiments of the invention, metal nanoparticles may be added to the metal-coated substrate 240, 340 to further enhance the Raman signals. Raman spectroscopy may be used to detect, identify and/or quantify a wide variety of analytes, using the disclosed methods and apparatus 300.

    摘要翻译: 本文公开的方法和装置300涉及使用金属涂覆的纳米晶体多孔硅衬底240,340的拉曼光谱。 在本发明的某些实施例中,多孔硅衬底110,210可以通过在稀氢氟酸150中的阳极蚀刻形成。 拉曼活性金属如金或银的薄涂层可以通过阴极电迁移或任何已知技术涂覆在多孔硅110,210上。 金属涂覆的基底240,340为SERS,SERRS,超拉曼和/或CARS拉曼光谱提供了广泛的金属富集环境。 在本发明的某些实施方案中,可以将金属纳米颗粒加入到金属涂覆的基底240,340中以进一步增强拉曼信号。 使用所公开的方法和装置300,可以使用拉曼光谱来检测,鉴定和/或定量各种各样的分析物。

    Method, Structure, and apparatus for Raman spectroscopy
    79.
    发明申请
    Method, Structure, and apparatus for Raman spectroscopy 有权
    用于拉曼光谱的方法,结构和装置

    公开(公告)号:US20100085565A1

    公开(公告)日:2010-04-08

    申请号:US12584898

    申请日:2009-09-14

    IPC分类号: G01J3/44

    CPC分类号: G01N21/65

    摘要: Disclosed herein are a Raman spectroscopy structure comprising a porous material substrate, and a method of performing Raman spectroscopy of a sample disposed adjacent to the structure comprising the porous material substrate. Generally, the substrate includes one or more layers of a porous material such as porous silicon, porous polysilicon, porous ceramics, porous silica, porous alumina, porous silicon-germanium, porous germanium, porous gallium arsenide, porous gallium phosphide, porous zinc oxide, and porous silicon carbide. It has been discovered that such a substrate material, when excited with near-infrared light, does not exhibit undesired background fluorescence characteristic of other known Raman spectroscopy substrates.

    摘要翻译: 本文公开了包括多孔材料基板的拉曼光谱结构以及与包括多孔材料基板的结构相邻设置的样品进行拉曼光谱学的方法。 通常,基板包括一层或多层多孔材料,例如多孔硅,多孔多晶硅,多孔陶瓷,多孔二氧化硅,多孔氧化铝,多孔硅锗,多孔锗,多孔砷化镓,多孔磷化镓,多孔氧化锌, 和多孔碳化硅。 已经发现,当用近红外光激发时,这种衬底材料不会出现其他已知的拉曼光谱基底的不期望的背景荧光特性。

    MODEL-BASED FUSION OF SCANNING PROBE MICROSCOPIC IMAGES FOR DETECTION AND IDENTIFICATION OF MOLECULAR STRUCTURES
    80.
    发明申请
    MODEL-BASED FUSION OF SCANNING PROBE MICROSCOPIC IMAGES FOR DETECTION AND IDENTIFICATION OF MOLECULAR STRUCTURES 有权
    用于探测和识别分子结构的扫描探针微观图像的基于模型的融合

    公开(公告)号:US20090262994A1

    公开(公告)日:2009-10-22

    申请号:US12359637

    申请日:2009-01-26

    IPC分类号: G06K9/00

    CPC分类号: G01Q30/04 B82Y35/00

    摘要: In certain embodiments of the invention, a plurality of images of one or more subjects may be captured using different imaging techniques, such as different modalities of scanning probe microscopy. Parameters may be estimated from the plurality of images, using one or more models of known molecular structures to provide a model-based analysis. The estimated parameters may be fused, with further input from physical models of known molecular structures. The fused parameters may be used to characterize the subjects. Such characterization may include the detection and/or identification of specific molecular structures, such as proteins, peptides and/or nucleic acids of known sequence and/or structure. In some embodiments of the invention the structural characterizations may be used to identify previously unknown properties of a subject molecule.

    摘要翻译: 在本发明的某些实施例中,可以使用不同的成像技术(例如扫描探针显微镜的不同方式)捕获一个或多个受试者的多个图像。 可以使用已知分子结构的一个或多个模型从多个图像估计参数以提供基于模型的分析。 估计的参数可以与已知分子结构的物理模型的进一步输入融合。 融合参数可用于表征受试者。 这种表征可以包括具体分子结构的检测和/或鉴定,例如已知序列和/或结构的蛋白质,肽和/或核酸。 在本发明的一些实施方案中,结构表征可用于鉴定受试者分子的先前未知的性质。