COLORIMETRIC DETECTION OF METALLIC IONS IN AQUEOUS MEDIA USING FUNCTIONALIZED NANOPARTICLES
    2.
    发明申请
    COLORIMETRIC DETECTION OF METALLIC IONS IN AQUEOUS MEDIA USING FUNCTIONALIZED NANOPARTICLES 审中-公开
    使用功能化纳米粒子在水性介质中金属离子的颜色检测

    公开(公告)号:US20100068817A1

    公开(公告)日:2010-03-18

    申请号:US12513246

    申请日:2007-11-08

    IPC分类号: G01N33/20

    摘要: Disclosed herein are methods of detecting metal ions in a sample using functionalized nanoparticles. More specifically, functionalized nanoparticles are used to selectively detect metal ions in a sample using changes in melting temperature of hybridized oligonucleotides on functionalized nanoparticles. The melting temperature can be detected using absorbance, color change, or both. In some cases, the concentration of the metal ion in the sample can be determined. Concentrations of metal ion of as little as 20 ppb (about 100 nM) can be detected using the disclosed methods.

    摘要翻译: 本文公开了使用官能化纳米颗粒检测样品中的金属离子的方法。 更具体地,官能化纳米粒子被用于使用官能化纳米粒子上的杂交寡核苷酸的解链温度的变化来选择性地检测样品中的金属离子。 可以使用吸光度,颜色变化或两者来检测熔解温度。 在某些情况下,可以确定样品中金属离子的浓度。 使用所公开的方法可以检测到少至20ppb(约100nM)的金属离子浓度。

    REAL-TIME COLORIMETRIC SCREENING INHIBITORS OF ENDONUCLEASE WITH GOLD NANOPARTICLE SUBSTRATE
    6.
    发明申请
    REAL-TIME COLORIMETRIC SCREENING INHIBITORS OF ENDONUCLEASE WITH GOLD NANOPARTICLE SUBSTRATE 审中-公开
    具有金纳米晶基质的内切酶的实时彩色荧光筛选抑制剂

    公开(公告)号:US20090155785A1

    公开(公告)日:2009-06-18

    申请号:US12020506

    申请日:2008-01-25

    IPC分类号: C12Q1/68

    摘要: The invention provides methods for screening a compound for its effect on endonuclease activity. The methods comprise providing a compound to be screened utilizing a gold nanoparticle aggregate as the substrate for the endonuclease. The gold nanoparticle aggregate is formed by the hybridization of oligonucleotides attached to the nanoparticles, with or without the presence of a third linker oligonucleotide. The hybridized oligonucleotide duplex serves as a substrate for the endonuclease. A detectable change is brought about in the presence of the endonuclease activity. A decrease in the detectable change reflects the reduced levels of endonuclease activities as a result of the effects of endonuclease inhibitors. The present invention also provides kits for screening an endonuclease inhibitor.

    摘要翻译: 本发明提供了筛选化合物对其对核酸内切酶活性的影响的方法。 所述方法包括使用金纳米颗粒聚集体作为内切核酸酶的底物提供待筛选的化合物。 金纳米颗粒聚集体通过与或不与第三接头寡核苷酸的存在连接到纳米颗粒上的寡核苷酸的杂交形成。 杂交的寡核苷酸双链体用作内切核酸酶的底物。 在存在核酸内切酶活性的情况下可以发现可检测的变化。 可检测变化的降低反映了由于内切核酸酶抑制剂的作用而导致的内切核酸酶活性的降低。 本发明还提供了用于筛选内切核酸酶抑制剂的试剂盒。

    Composite particles
    7.
    发明授权
    Composite particles 失效
    复合颗粒

    公开(公告)号:US08512946B2

    公开(公告)日:2013-08-20

    申请号:US12063206

    申请日:2006-08-10

    IPC分类号: C12Q1/68 C07H21/04 C12M1/00

    摘要: Composite particles and methods of synthesizing a composite particle are disclosed, in particular, methods of synthesizing a composite particle comprising a dielectric component, a magnetic component, and a gold shell are disclosed. Further disclosed herein are methods of detecting a target compound using the composite particles of the present invention. Also disclosed are photonic crystals that can be manipulated with an external magnetic field comprising the composite particles of the present invention.

    摘要翻译: 公开了复合颗粒和合成复合颗粒的方法,特别是公开了合成包含介电组分,磁性组分和金壳的复合颗粒的方法。 本文进一步公开的是使用本发明的复合颗粒检测目标化合物的方法。 还公开了可以用包含本发明的复合颗粒的外部磁场操纵的光子晶体。

    Generation of combinatorial patterns by deliberate tilting of a polymer-pen array
    10.
    发明授权
    Generation of combinatorial patterns by deliberate tilting of a polymer-pen array 有权
    通过聚合物笔阵列的有意倾斜来产生组合图案

    公开(公告)号:US08753813B2

    公开(公告)日:2014-06-17

    申请号:US13513618

    申请日:2010-12-02

    摘要: The disclosure relates to a method of forming a pattern having pattern elements with a plurality of sizes on a substrate surface with a tilted pen array that includes choosing a tilt geometry for a pen array with respect to a substrate, inducing the tilt geometry between the pen array and the substrate surface, and forming a pattern having pattern elements on the substrate surface with the titled pen array, whereby the size of the formed pattern elements varies across the substrate surface along the tilted axis or axes. For example, the tilt geometry is in reference to the substrate surface and comprises a first angle with respect to a first axis of the substrate and a second angle with respect to a second axis of the substrate, the second axis being perpendicular to the first axis, and at least one of the first and second angles being non-zero.

    摘要翻译: 本公开涉及一种在衬底表面上形成具有多个尺寸的图案元件的图案的方法,该倾斜笔阵列包括相对于衬底选择笔阵列的倾斜几何形状,从而引起笔之间的倾斜几何形状 阵列和衬底表面,并且用标称笔阵列在衬底表面上形成具有图形元素的图案,由此形成的图案元素的尺寸沿着倾斜的轴线或轴线跨越衬底表面变化。 例如,倾斜几何形状参考衬底表面并且包括相对于衬底的第一轴线的第一角度和相对于衬底的第二轴线的第二角度,第二轴线垂直于第一轴线 并且第一和第二角度中的至少一个是非零。