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15 条记录 (耗时 0.023 秒)

    Lanthanide metal-organic frameworks and uses thereof
    13.
    发明授权
    Lanthanide metal-organic frameworks and uses thereof 有权
    镧系金属 - 有机骨架及其用途

    公开(公告)号：US08617421B2

    公开(公告)日：2013-12-31

    申请号：US12562557

    申请日：2009-09-18

    申请人： Stephane Petoud ,  Nathaniel L. Rosi ,  Kiley A. White ,  Demetra Anne Chengelis Czegan

    发明人： Stephane Petoud ,  Nathaniel L. Rosi ,  Kiley A. White ,  Demetra Anne Chengelis Czegan

    IPC分类号： C09K11/06

    CPC分类号： C07C65/28 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1022 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1074 ,  C09K2211/1088 ,  C09K2211/182

    摘要： Metal-organic frameworks (MOFs) are crystalline porous materials that include metal ions linked together into periodic structures via organic ligands. MOFs that contain lanthanide ions are a new class of visible and near-IR luminescent materials, suitable for a broad range of applications. For example, the MOF framework afforded by 2,5-dimethoxy-1,4-phenylene)di-2,1-ethenediyl]bis-carboxylate is associated with unusually long luminescence lifetimes. Thus, a complex of this ligand with a lanthanide provides a sharp emission profile, coupled with a comparatively long signal lifetime, for an unusually high luminescence. More generally, lanthanide-MOF systems exhibit several advantages that are ideal for barcoded materials, due to the photophysical attributes of lanthanide cations and the well-defined organization of the MOF structure.

    摘要翻译： 金属 - 有机骨架（MOF）是结晶多孔材料，其包括通过有机配体连接在一起成为周期结构的金属离子。 含有镧系离子的MOFs是一类新的可见光和近红外发光材料，适用于广泛的应用。 例如，由2,5-二甲氧基-1,4-亚苯基）二-2,1-亚乙基]双羧酸酯提供的MOF框架与异常长的发光寿命相关。 因此，该配体与镧系元素的络合物提供了尖锐的发射谱，并且具有相当长的信号寿命，用于异常高的发光。 更一般地，由于镧系元素阳离子的光物理属性和MOF结构的明确组织，镧系元素MOF体系表现出对条形码材料理想的几个优点。

    NANOSTRUCTURE SYSTEMS AND METHODS FOR SENSING AN ANALYTE
    14.
    发明申请
    NANOSTRUCTURE SYSTEMS AND METHODS FOR SENSING AN ANALYTE 审中-公开
    用于感测分析仪的纳米结构系统和方法

    公开(公告)号：US20110127446A1

    公开(公告)日：2011-06-02

    申请号：US12784949

    申请日：2010-05-21

    申请人： Alexander Star ,  Stephane Petoud ,  Douglas R. Kauffman ,  Chad Michael Shad ,  Hyounsoo Uh

    发明人： Alexander Star ,  Stephane Petoud ,  Douglas R. Kauffman ,  Chad Michael Shad ,  Hyounsoo Uh

    IPC分类号： G01J1/58 ,  G03C1/00

    CPC分类号： G01N21/77 ,  G01N27/4146

    摘要： A method of detecting an analyte in an environment, includes immobilizing at least one photoactive composition on nanostructures, the photoactive composition exhibiting emission that is sensitive to the analyte; applying electromagnetic radiation to the immobilized photoactive moiety for a period of time; measuring at least one response; and using the measured response to determine the presence the analyte in the environment. The nanostructures can, for example, include carbon nanostructures. In a number of embodiments, the analyte is oxygen.

    摘要翻译： 检测环境中的分析物的方法包括将至少一种光活性组合物固定在纳米结构上，所述光活性组合物显示对分析物敏感的发射; 对固定的光活性部分施加电磁辐射一段时间; 测量至少一个响应; 并使用测量的响应来确定分析物在环境中的存在。 纳米结构例如可以包括碳纳米结构。 在多个实施方案中，分析物是氧。

    Semiconductor nanocrystals as novel antennae for lanthanide cations and associated methods
    15.
    发明申请
    Semiconductor nanocrystals as novel antennae for lanthanide cations and associated methods 审中-公开
    半导体纳米晶体作为镧系元素阳离子的新型天线和相关方法

    公开(公告)号：US20060208225A1

    公开(公告)日：2006-09-21

    申请号：US11368970

    申请日：2006-03-06

    申请人： Stephane Petoud ,  Demetra Chengelis ,  Adrienne Yingling

    发明人： Stephane Petoud ,  Demetra Chengelis ,  Adrienne Yingling

    IPC分类号： C09K11/08

    CPC分类号： C09K11/883

    摘要： The present invention relates to a new composition of luminescent matter in which lanthanide cations are incorporated into semiconductor nanocrystals, and methods for making this new composition of matter. The semiconductor nanocrystal structure serves as an antenna for allowing the excited electronic states of the semiconductor nanocrystals to sensitize lanthanide cation emission. In comparison to organic antenna types, semiconductor nanocrystals are able to protect lanthanide cations from quenching solvent molecules without supplying high energy vibrations, thereby resisting non-radiative deactivation of the lanthanide cation excited states. Semiconductor nanocrystals have several advantages as species that absorb and emit photons, namely, broad absorbance bands with high epsilon values and emission wavelengths that can be easily tuned through their size, which is controlled through synthesis conditions. Lanthanide cations also have several advantages—sharp emission bands and long luminescence lifetimes.

    摘要翻译： 本发明涉及将镧系元素阳离子结合到半导体纳米晶体中的发光物质的新组合物，以及制备这种新的物质组成的方法。 半导体纳米晶体结构用作允许半导体纳米晶体的激发电子态使镧系元素阳离子发射敏化的天线。 与有机天线类型相比，半导体纳米晶体能够保护镧系元素阳离子免于猝灭溶剂分子而不提供高能量振动，从而抵抗镧系元素阳离子激发态的非辐射失活。 半导体纳米晶体作为吸收和发射光子的物质具有几个优点，即具有高ε值和发射波长的宽吸收带，其可以通过其通过合成条件控制的尺寸容易地调节。 镧系阳离子还具有几个优点 - 尖锐的发射带和长的发光寿命。