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    Microelectro-mechanical chemical sensor
    1.
    发明申请
    Microelectro-mechanical chemical sensor 有权
    微电子机械化学传感器

    公开(公告)号：US20050276726A1

    公开(公告)日：2005-12-15

    申请号：US11136763

    申请日：2005-05-25

    申请人： Robert McGill ,  Ioana Voiculescu ,  Gary Fedder

    发明人： Robert McGill ,  Ioana Voiculescu ,  Gary Fedder

    IPC分类号： G01N27/00 ,  G01N27/16

    CPC分类号： G01N29/036 ,  G01N2291/0256 ,  G01N2291/0257

    摘要： A microelectro-mechanical chemical sensor includes an active cantilever beam having a chemically selective material layer disposed thereon and at least one, preferably two, resistors with the resistance corresponding to the cantilever beam deflection. The sensor also has at least two, and preferably four, auxiliary cantilever beams adjacent to the active cantilever and attached to the same substrate, each having a piezoresistor disposed thereon. The piezoresistors are elements of a Wheatstone bridge, and the Wheatstone bridge output indicates the amount of a predetermined target chemical sorbed by the chemically selective material layer. The sensor is electrostatically actuated in order to monitor the resonant frequency.

    摘要翻译： 微电子机械化学传感器包括具有设置在其上的化学选择性材料层的主动悬臂梁和至少一个，优选两个电阻器，其电阻对应于悬臂梁偏转。 传感器还具有与主动悬臂相邻并附接到相同基板的至少两个，优选为四个辅助悬臂梁，每个悬臂梁上设置有压电电阻器。 压电电阻是惠斯通电桥的元件，惠斯通电桥输出表示由化学选择性材料层吸收的预定目标化学物质的量。 为了监测谐振频率，传感器被静电驱动。

    Carbosilane polymers and methods for use in analytical and purification applications
    2.
    发明申请
    Carbosilane polymers and methods for use in analytical and purification applications 有权

    公开(公告)号：US20070043195A1

    公开(公告)日：2007-02-22

    申请号：US11589734

    申请日：2006-10-31

    申请人： Robert McGill ,  Eric Houser

    发明人： Robert McGill ,  Eric Houser

    IPC分类号： C08G77/48

    CPC分类号： C08G77/60 ,  Y10T436/163333 ,  Y10T436/17

    摘要： This invention relates generally to a new class of chemoselective polymer materials. In particular, the invention relates to linear polycarbosilane compounds for use in various analytical applications involving sorbent polymer materials, including chromatography, chemical trapping, analyte collection, and chemical sensor applications. These polymers have pendant and terminal aryl, alkyl, alkenyl, and alkynyl groups that are functionalized with halogen substituted alcohol or phenol groups, having the general structure: wherein n is an integer greater than 1; wherein at least one of R1 and R2 is a pendant group having at least one aryl group independently selected from the group consisting of a phenol, a halogen substituted phenol, and an aryl hydrocarbon with a halogen substituted alcohol substitutent, or combinations thereof; wherein any said R1 and R2 aryl groups are attached to said [Si—X—]n either directly or through a short hydrocarbon chain; wherein any remaining said R1 or R2 group is a hydrocarbon or carbosilane group; wherein X is a polymer component selected from the group consisting of alkylene, alkenylene, alkynylene, arylene groups, and combinations thereof; and wherein Z1 and Z2 are end groups independently selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, alkyl silanes, aryl silanes, hydroxyl, silicon hydride, alkoxides, phenols, halogen substituted alcohols, halogen substituted phenols, organosilyl, and combinations thereof. These polymeric materials are primarily designed to sorb hydrogen bond basic analytes such as organophosphonate esters (nerve agents and precursors) and nitro-substituted compounds (explosives).

    Chemoselective dendrimeric compounds for use in chemical sensors
    4.
    发明授权
    Chemoselective dendrimeric compounds for use in chemical sensors 失效
    用于化学传感器的化学选择性树枝状化合物

    公开(公告)号：US06617040B2

    公开(公告)日：2003-09-09

    申请号：US10046298

    申请日：2002-01-16

    申请人： Eric Houser ,  Robert McGill

    发明人： Eric Houser ,  Robert McGill

    IPC分类号： B32B904

    CPC分类号： C08G83/003 ,  C08G77/60 ,  Y10T428/31663

    摘要： The present invention provides a device for selective molecular recognition, the device comprising a sensing portion, wherein said sensing portion includes a substrate having coated thereon a layer comprising a dendrimeric compound having: (1) a core portion; (2) at least one unsaturated arms extending radially from the core portion; and (3) at least one halogen substituted alcohol substituted at the terminus, the interior, or both of each; The device is used to detect the molecules of a hydrogen bond accepting vapor such as organophosphorus or nitroaromatic species.

    摘要翻译： 本发明提供了一种用于选择性分子识别的装置，该装置包括感测部分，其中所述感测部分包括其上涂覆有包含树枝状大分子化合物的层的基底，所述树枝状大分子化合物具有：（1）核心部分;（2）至少一种不饱和 臂从芯部径向延伸; 和（3）至少一个在末端，内部或两者取代的卤素取代的醇;该装置用于检测氢键接受蒸气的分子，例如有机磷或硝基芳族物质。

    LINEAR CHEMOSELECTIVE CARBOSILANE POLYMERS AND METHODS FOR USE IN ANALYTICAL AND PURIFICATION APPLICATIONS
    5.
    发明申请
    LINEAR CHEMOSELECTIVE CARBOSILANE POLYMERS AND METHODS FOR USE IN ANALYTICAL AND PURIFICATION APPLICATIONS 有权

    公开(公告)号：US20070003440A1

    公开(公告)日：2007-01-04

    申请号：US10683316

    申请日：2003-10-10

    申请人： Robert McGill ,  Eric Houser

    发明人： Robert McGill ,  Eric Houser

    IPC分类号： G01N7/02 ,  B32B9/04

    CPC分类号： C08G77/60 ,  Y10T436/163333 ,  Y10T436/17

    摘要： This invention relates generally to a new class of chemoselective polymer materials. In particular, the invention relates to linear polycarbosilane compounds for use in various analytical applications involving sorbent polymer materials, including chromatoghraphy, chemical trapping, analyte collection, and chemical sensor applications. These polymers have pendant and terminal aryl, alkyl, alkenyl, and alkynyl groups that are functionalized with halogen substituted alcohol or phenol groups, having the general structure: wherein n is an integer greater than 1; wherein at least one of R1 and R2 is a linear or branched arm having at least one group independently selected from the group consisting of alkyl, alkenyl, alkynyl, and aryl groups, or combinations thereof, and having at least one halogen substituted alcohol or phenol groups attached thereto; wherein any said R1 and R2 aryl groups are attached to said [Si—X-]n either directly or through a short hydrocarbon chain; wherein any remaining said R1 or R2 group is a hydrocarbon or carbosilane group; wherein X is a polymer component selected from the group consisting of alkylene, alkenylene, alkynylene, arylene groups, and combinations thereof; and wherein Z1 and Z2 are end groups independently selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, alkyl silanes, aryl silanes, hydroxyl, silicon hydride, alkoxides, phenols, halogen substituted alcohols, halogen substituted phenols, organosilyl, and combinations thereof. These polymeric materials are primarily designed to sorb hydrogen bond basic analytes such as organophosphonate esters (nerve agents and precursors) and nitro-substituted compounds (explosives).

    Micro scale flow through sorbent plate collection device
    6.
    发明申请
    Micro scale flow through sorbent plate collection device 审中-公开
    微量流过吸附板收集装置

    公开(公告)号：US20050226778A1

    公开(公告)日：2005-10-13

    申请号：US10868445

    申请日：2004-06-10

    申请人： Eric Houser ,  Robert McGill ,  David Nagel

    发明人： Eric Houser ,  Robert McGill ,  David Nagel

    IPC分类号： B01L3/00 ,  G01N1/02 ,  G01N1/22 ,  G01N1/40 ,  G01N30/06 ,  G01N30/08 ,  G01N30/12 ,  G01N33/00

    CPC分类号： B01L7/00 ,  B01L3/502753 ,  B01L2200/10 ,  B01L2300/069 ,  B01L2300/1827 ,  B82Y30/00 ,  G01N1/02 ,  G01N1/2214 ,  G01N1/2273 ,  G01N1/40 ,  G01N1/405 ,  G01N30/08 ,  G01N33/0011 ,  G01N2001/022 ,  G01N2030/062 ,  G01N2030/121 ,  Y10T436/25 ,  Y10T436/255

    摘要： In the invention, a collection device includes a first micro scale plate having a sorbent surface and a through hole. The through hole provides for the passage of an analyte fluid flow through the plate, and it has a volume and geometry to provide contact between the fluid and the sorbent surface in an amount effective to absorb a sufficient amount of analyte for subsequent detection of the analyte. The sorbent surface can be provided by a sorbent coating such as an active sensing film, e.g. a conducting or optically active material, examples of which include conducting polymers, polymer/carbon composites, carbon nanotubes, and dye-containing materials. The analyte collection device preferably includes a heating source, e.g. a heating element formed from a resistive trace, or a plurality of resistive traces, on or within the first microscale plate, for effecting a thermal release of collected analyte from the plate.

    摘要翻译： 在本发明中，收集装置包括具有吸附剂表面和通孔的第一微尺度板。 通孔提供分析物流体通过板的通道，并且其具有体积和几何形状以提供流体和吸附剂表面之间的接触，其量有效地吸收足够量的分析物以便随后检测分析物 。 吸附剂表面可以由吸附剂涂层提供，例如主动感测膜，例如， 导电或光学活性材料，其实例包括导电聚合物，聚合物/碳复合材料，碳纳米管和含染料的材料。 分析物收集装置优选地包括加热源，例如， 由第一微量平板上或第一微米板上的电阻迹线或多个电阻迹线形成的加热元件，用于实现从板上的收集的分析物的热释放。