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    • 11. 发明申请
    • VIBRATING TIP SURFACE ENHANCED RAMAN SPECTROSCOPY
    • 振动提示表面增强拉曼光谱
    • US20110188035A1
    • 2011-08-04
    • US12697156
    • 2010-01-29
    • Huei Pei KuoMichael J. StukeMin HuFung Suong OuShih-Yuan (SY) WangAlexandre M. BratkovskiWei WuZhiyong Li
    • Huei Pei KuoMichael J. StukeMin HuFung Suong OuShih-Yuan (SY) WangAlexandre M. BratkovskiWei WuZhiyong Li
    • G01J3/44
    • G01J3/44
    • A vibrating tip surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a nano-needle configured to vibrate. The apparatus includes the nano-needle with a substantially sharp tip at a free end opposite an end attached to a substrate. The tip is configured to adsorb an analyte. The apparatus further includes a vibration source configured to provide an alternating current (AC) electric field that induces a vibration of the free end and the tip of the nano-needle. Vibration of the nano-needle under the influence of the AC electric field facilitates detection of a Raman scattering signal from the analyte adsorbed on the nano-needle tip. The system further includes a synchronous detector configured to be gated cooperatively with the vibration of the nano-needle. The method includes inducing the vibration, illuminating the vibrating tip to produce a Raman signal, and detecting the Raman signal using the detector.
    • 振动尖端表面增强拉曼光谱(SERS)装置,系统和方法采用配置为振动的纳米针。 该装置包括在与连接到基底的端相对的自由端处具有基本尖锐的尖端的纳米针。 尖端构造成吸附分析物。 该装置还包括一个被配置为提供交流(AC)电场的振动源,其引起自由端和纳米针的尖端的振动。 在AC电场的影响下,纳米针的振动有助于检测吸附在纳米针尖上的分析物的拉曼散射信号。 该系统还包括配置为与纳米针的振动协同地选通的同步检测器。 该方法包括引起振动,照亮振动尖端以产生拉曼信号,并使用检测器检测拉曼信号。
    • 15. 发明授权
    • Hydrodynamic spinning of polymer fiber in coaxial laminar flows
    • 聚合物纤维在同轴层流中的流体动力学纺丝
    • US08834780B2
    • 2014-09-16
    • US12920066
    • 2009-03-02
    • Jackie Y. YingMin HuRensheng DengKarl SchumacherMotoichi Kurisawa
    • Jackie Y. YingMin HuRensheng DengKarl SchumacherMotoichi Kurisawa
    • B29C63/06D01D5/24A61L27/52D01D5/38D01D5/28
    • D01D5/28A61L27/52D01D5/24D01D5/38
    • A polymer fiber is formed by hydrodynamic spinning. Fluids are forced to flow through a conduit to form a laminar flow comprising three or more layers of generally coaxial fluid flows, at respective flow rates selected to define a cross-section of a tubular middle layer of the fluid flows. The middle layer comprises a cross-linkable polymer precursor. Another layer of the fluid flows comprise a cross-linking agent. The polymer precursor, cross-linking agent and fluids are selected to prevent substantial diffusion of the polymer precursor away from the middle layer, and to allow a portion of the cross-linking agent to diffuse from the another layer into the middle layer to facilitate cross-linking of the polymer precursor in the middle layer to form a tubular polymer layer in a polymer fiber. The polymer layer thus has a cross-section generally corresponding to the cross-section of the middle layer.
    • 聚合物纤维通过流体动力纺丝形成。 流体被迫流过导管以形成包含三层或更多层大体上同轴的流体流的层流,其各自的流速被选择为限定流体流的管状中间层的横截面。 中间层包含可交联的聚合物前体。 流体流的另一层包含交联剂。 选择聚合物前体,交联剂和流体以防止聚合物前体远离中间层的实质性扩散,并且允许一部分交联剂从另一层扩散到中间层以促进交叉 在中间层中连接聚合物前体以在聚合物纤维中形成管状聚合物层。 聚合物层因此具有一般对应于中间层的横截面的横截面。
    • 17. 发明授权
    • Apparatus for performing SERS
    • 用于执行SERS的装置
    • US08462333B2
    • 2013-06-11
    • US12905891
    • 2010-10-15
    • Wei WuZhiyong LiShih-Yuan WangMichael Josef StukeLars Helge ThylenFung Suong OuMin Hu
    • Wei WuZhiyong LiShih-Yuan WangMichael Josef StukeLars Helge ThylenFung Suong OuMin Hu
    • G01J3/44
    • G01N21/658
    • An apparatus for performing SERS includes a substrate and flexible nano-fingers, each of the nano-fingers having a first end attached to the substrate, a free second end, and a body portion extending between the first end and the second end, in which the nano-fingers are arranged in an array on the substrate. The apparatus also includes an active material layer disposed on each of the second ends of the plurality of nano-fingers, in which the nano-fingers are to be in a substantially collapsed state in which the active layers on at least two of the nano-fingers contact each other under dominant attractive forces between the plurality of nano-fingers and in which the active material layers are to repel each other when the active material layers are electrostatically charged.
    • 用于执行SERS的装置包括基底和柔性纳米指,每个纳米指具有连接到基底的第一端,自由的第二端和在第一端和第二端之间延伸的主体部分,其中 纳米手指以阵列排列在基板上。 该装置还包括设置在多个纳米手指的每个第二端上的活性材料层,其中纳米指状物将处于基本上塌陷的状态,其中在至少两个纳米手指上的活性层, 手指在多个纳米手指之间的主导吸引力下彼此接触,并且当活性材料层被静电充电时,活性材料层将彼此排斥。