Photo-Swichable Surfaces with Controllable Physico-Chemical Properties
    1.
    发明申请
    Photo-Swichable Surfaces with Controllable Physico-Chemical Properties 审中-公开
    具有可控物理化学性质的可光照表面

    公开(公告)号:US20080261323A1

    公开(公告)日:2008-10-23

    申请号:US12065667

    申请日:2006-09-06

    IPC分类号: G01N21/77

    CPC分类号: G01N33/583 G01N33/6839

    摘要: Photochromic materials, such as spiropyran dyes, are disclosed that can be used for high-density optical storage and molecular switches. According to the disclosure these compounds can be used as transducers in optical sensors. When the spiropyran dye absorbs UV light it switches to the merocyanine form, and this structure has an active binding site for cations. When cations bind to the site, the resulting colored complex has a new absorption band in the visible spectrum. By shining white or green light on the colored complex, the dye is reverted to the closed spiropyran form, and the cation is released. The disclosure optimizes the immobilization of the spiropyran dye onto a polymer substrate via long chain alkyl groups. These long chain alkyl linkers enable the dye to reversibly form the preferred merocyanine (2):(1) cation sandwich complex.

    摘要翻译: 公开了可用于高密度光学存储和分子开关的光致变色材料,例如螺吡喃染料。 根据公开内容,这些化合物可用作光学传感器中的换能器。 当吡咯啉染料吸收UV光时,它转变为部花青形式,并且该结构具有阳离子的活性结合位点。 当阳离子与该位点结合时,所得到的有色复合物在可见光谱中具有新的吸收带。 通过在有色复合物上照射白色或绿色光,染料被还原成封闭的螺吡喃形式,阳离子被释放。 本发明优化了通过长链烷基将螺吡喃染料固定在聚合物底物上。 这些长链烷基接头使得染料可逆地形成优选的部花青(2):(1)阳离子三明治复合物。

    Ion-selective electrodes
    2.
    发明授权
    Ion-selective electrodes 失效
    离子选择电极

    公开(公告)号:US5132345A

    公开(公告)日:1992-07-21

    申请号:US624623

    申请日:1990-12-10

    IPC分类号: G01N27/333

    CPC分类号: G01N27/333

    摘要: An ion-selective polymeric membrane for an electrochemical sensor for use in analytical chemistry, comprisinga) a supporting matrix e.g. of PVC, andb) an ionophore selected from calixarene or oxacalixarene derivatives of the formula IV ##STR1## wherein n+m=3-8;m=0-8;n=0-8;a, which may be the same or different on each aryl group, is 0 or 1;R.sup.2 is alkyl, aryl, alkaryl, alkoxy, alkoxyalkoxy, aryloxy, alkaryloxy, alicyclic, alkylthio, arylthio, alkarylthio, or a substituted derivative thereof;R.sup.3 is --H, alkyl or alkenyl;X is --OH or a group containing an acrylate or methacrylate functional group;provided that when X is --OH, n is at least 1/2(n+m);and provided that when m=0, n=4, a=0 and R.sup.3 is alkyl or allyl, R.sup.2 is not alkoxy having 4 or more carbon atoms in the alkyl group;and provided that when m=0, n=4, a=0 and R.sup.3 is t-butyl, R.sup.2 is not methoxy or ethoxy;or of the formula V ##STR2## wherein R.sup.4 is alkyl; or polymers of those compounds of the formula IV in which X is a group containing an acrylate or methacrylate group.New compounds in which R.sup.2 is --SCH.sub.2 CH.sub.3 are described.Selectivity coefficients and slope measurements are given for the ionophores in PVC electrodes which are selective for sodium, potassium and caesium.

    摘要翻译: 一种用于分析化学中的用于电化学传感器的离子选择性聚合物膜,包括:a) 的PVC,和b)选自式IV的杯芳烃或氧杂七环芳烃衍生物的离子载体,其中n + m = 3-8; m = 0-8; n = 0-8; a在每个芳基上可以相同或不同,为0或1; R2是烷基,芳基,烷芳基,烷氧基,烷氧基烷氧基,芳氧基,烷氧基,脂环族,烷硫基,芳硫基,烷芳硫基或其取代衍生物。 R3是-H,烷基或烯基; X是-OH或含有丙烯酸酯或甲基丙烯酸酯官能团的基团; 条件是当X为-OH时,n为至少1/2(n + m); 并且条件是当m = 0时,n = 4,a = 0和R3是烷基或烯丙基,R2不是烷基中具有4个或更多个碳原子的烷氧基; 并且条件是当m = 0时,n = 4,a = 0和R3是叔丁基,R 2不是甲氧基或乙氧基; 或其中R 4是烷基的式V V 或其中X为含丙烯酸酯或甲基丙烯酸酯基团的式Ⅳ化合物的聚合物。 描述了其中R2是-SCH2CH3的新化合物。 对于对钠,钾和铯有选择性的PVC电极中的离子载体,给出了选择性系数和斜率测量。

    Photoresponsive ionogel
    3.
    发明授权
    Photoresponsive ionogel 有权
    光响应性离子凝胶

    公开(公告)号:US08163834B2

    公开(公告)日:2012-04-24

    申请号:US12406249

    申请日:2009-03-18

    IPC分类号: C08F222/36

    摘要: A photoresponsive ionogel comprising a photo-responsive polymer polymerised within an ionic liquid matrix is described. This solid-state electrolyte material maintains its ionic liquid characteristics but these characteristics can be altered upon irradiation of the gel with light of a particular wavelength. By suitably configuring the ionogel through the incorporation of specific ions within the gel it is possible to cause dramatic changes in properties of the ionogel such as viscosity, conductivity, acidity, basicity and polarity using light as the stimulus.

    摘要翻译: 描述了包含在离子液体基质内聚合的光响应聚合物的光响应性离子凝胶。 这种固态电解质材料保持其离子液体特性,但是在用特定波长的光照射凝胶时可以改变这些特性。 通过将凝胶中的特定离子结合适当地配置离子凝胶,可以使用光作为刺激,引起离子凝胶的性质的显着变化,例如粘度,电导率,酸度,碱度和极性。

    Multi-way LED-based chemochromic sensor
    4.
    发明授权
    Multi-way LED-based chemochromic sensor 失效
    基于LED的化学荧光传感器

    公开(公告)号:US07008795B2

    公开(公告)日:2006-03-07

    申请号:US10251251

    申请日:2002-09-20

    IPC分类号: G01N21/78

    CPC分类号: G01N21/78

    摘要: A chemochromic sensor includes multiple bi-directional LEDs, each optically aligned with one or more test areas. Each LED is used as both a light emitter when driven in forward bias, and as a light detector when driven in reverse bias. By alternating the bias on the LEDs, multi-way light measurements of the test area can be obtained.

    摘要翻译: 化学传感器包括多个双向LED,每个LED与一个或多个测试区域光学对准。 每个LED用作正向偏压驱动时的发光体,以及作为反向偏压驱动时的光检测器。 通过交替LED上的偏置,可以获得测试区域的多路光测量。

    Chromoionophores, optical sensors containing them and a method for
determining the presence of alkali metal cations or of a base
    7.
    发明授权
    Chromoionophores, optical sensors containing them and a method for determining the presence of alkali metal cations or of a base 失效
    含铬荧光体,含有它们的光学传感器和用于测定碱金属阳离子或碱的存在的方法

    公开(公告)号:US5599913A

    公开(公告)日:1997-02-04

    申请号:US381912

    申请日:1995-03-28

    摘要: New chromoionophores of the formula IV ##STR1## wherein a=0-3, b=0 or 1, c =0 or 1, x=0 or 1, y=0 or 1, z=0 or 1,R', which may be the same or different in each aryl group, is H, halogen, hydrocarbyl, aryl, hydrocarbylaryl or a substituted derivative thereof;R, which may be the same or different, is hydrocarbyl, aryl, hydrocarbylaryl, or a substituted derivative thereofare useful in optical sensors or colourmetric reagents for clinical use particularly for lithium, When complexed with lithium, the chromoionophores of the invention and other calixarene derivatives can be used for detecting amines, particularly trimethylamine, as an indicator of fish spoilage.

    摘要翻译: PCT No.PCT / IE93 / 00046 Sec。 371日期:1995年3月28日 102(e)1995年3月28日PCT PCT 1993年8月6日PCT公布。 公开号WO94 / 04483 日期1994年3月3日公式IV的新的铬离子荧光素其中a = 0-3,b = 0或1,c = 0或1,x = 0或1,y = 0或1,z = 0或1,R'在每个芳基中可以相同或不同,为H,卤素,烃基,芳基,烃基芳基或其取代的衍生物; R可以相同或不同,是烃基,芳基,烃基芳基或其取代的衍生物,可用于特别用于锂的临床用光学传感器或色度试剂中。当与锂络合时,本发明的染色体和其他杯芳烃 衍生物可用于检测胺,特别是三甲胺,作为鱼类腐败的指标。