Broad spectrum optically addressed sensor
    27.
    发明申请
    Broad spectrum optically addressed sensor 失效
    广谱光学传感器

    公开(公告)号:US20040058455A1

    公开(公告)日:2004-03-25

    申请号:US10428785

    申请日:2003-05-05

    IPC分类号: C12M001/34 G01N033/543

    摘要: The present invention relates to a sensor for detecting chemical, biological, biochemical or other environmental stimuli, and includes a plurality of colloidal particles having chemical receptors bound to each particle's surface, wherein when a target stimulus is directed to the bound chemical receptor, the gelled matrix contracts or expands, which changes the lattice constant, thereby changing the pattern of diffracted light in a measurable manner so that the target stimulus' presence can be detected by a spectrometer. The plurality of colloidal particles are composed of a material having a first dielectric constant, and the gel and surrounding medium have a second dielectric constant. The colloidal particles can be assembled using holographic optical tweezers and polymerized to create an integrated sensor array, which diffracts light in a detectable characteristic manner.

    摘要翻译: 本发明涉及一种用于检测化学,生物,生物化学或其他环境刺激的传感器,并且包括具有结合到每个颗粒表面的化学受体的多个胶体颗粒,其中当靶刺激指向结合的化学受体时,胶凝 矩阵收缩或扩展,其改变晶格常数,从而以可测量的方式改变衍射光的图案,使得目标刺激的存在可以由光谱仪检测。 多个胶体颗粒由具有第一介电常数的材料构成,凝胶和周围介质具有第二介电常数。 可以使用全息光学镊子组装胶体颗粒并进行聚合以产生集成的传感器阵列,其以可检测的特征方式衍射光。

    Optical diffraction biosensor
    28.
    发明授权
    Optical diffraction biosensor 有权
    光学衍射生物传感器

    公开(公告)号:US06436651B1

    公开(公告)日:2002-08-20

    申请号:US09503554

    申请日:2000-02-11

    IPC分类号: G01N3353

    摘要: The present invention provides an inexpensive and sensitive device and method for detecting and quantifying analytes present in a medium. The device comprises a metalized film upon which is printed a specific, predetermined pattern of analyte-specific receptors. Upon attachment of a target analyte to select areas of the plastic film upon which the receptor is printed, diffraction of transmitted and/or reflected light occurs via the physical dimensions and defined, precise placement of the analyte. A diffraction image is produced which can be easily seen with the eye or, optionally, with a sensing device.

    摘要翻译: 本发明提供了用于检测和定量存在于介质中的分析物的廉价且敏感的装置和方法。 该装置包括金属化膜,在其上印刷特定的预定图案的分析物特异性受体。 在将目标分析物附着到选择受体的塑料薄膜的选择区域时,透射和/或反射光的衍射通过分析物的物理尺寸和定义的精确放置而发生。 产生可以用眼睛或可选地用感测装置容易地看到的衍射图像。

    Method of Production of a Holographic Sensor
    30.
    发明申请
    Method of Production of a Holographic Sensor 有权
    全息传感器的制作方法

    公开(公告)号:US20140110886A1

    公开(公告)日:2014-04-24

    申请号:US14143921

    申请日:2013-12-30

    IPC分类号: G03H1/04

    摘要: A method for the production of a holographic sensor which comprises a support medium supporting a reflection hologram wherein the support medium interacts with its physical or chemical environment to create an optical response which is a change in one or more optical properties of the hologram, the method comprising the steps of: a) introducing a colloidal dispersion of a recording material into the support medium; and b) ablating the colloidal particles of the recording material using a pulsed laser to form the holographic element in the support medium. The method of production can be used to introduce a reflection holographic grating into a hydrophobic support medium, in particular, polydimethylsiloxane (PDMS), which possesses an extraordinary ability to swell in the presence of both liquid and/or gaseous low molecular weight hydrocarbons and organic solvents and thus has many applications as a holographic sensor.

    摘要翻译: 一种用于生产全息传感器的方法,其包括支撑反射全息图的支撑介质,其中支撑介质与其物理或化学环境相互作用以产生作为全息图的一个或多个光学特性变化的光学响应,该方法 包括以下步骤:a)将记录材料的胶体分散体引入载体介质中; 和b)使用脉冲激光烧蚀记录材料的胶体颗粒,以在支撑介质中形成全息元件。 生产方法可用于将反射全息光栅引入到疏水性支持介质,特别是聚二甲基硅氧烷(PDMS)中,聚二甲基硅氧烷(PDMS)在液态和/或气态低分子量烃和有机物存在下具有非凡的溶胀能力 溶剂,因此作为全息传感器具有许多应用。