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67 条记录 (耗时 0.046 秒)

    Semiconductor nanocrystals for inventory control
    31.
    发明授权
    Semiconductor nanocrystals for inventory control 有权
    半导体纳米晶体库存控制

    公开(公告)号：US06602671B1

    公开(公告)日：2003-08-05

    申请号：US09397432

    申请日：1999-09-17

    申请人： Moungi G. Bawendi ,  Klavs F. Jensen

    发明人： Moungi G. Bawendi ,  Klavs F. Jensen

    IPC分类号： H01L2904

    CPC分类号： G06K19/06046 ,  B82Y15/00 ,  G01N33/532 ,  G01N33/533 ,  G01N33/588 ,  Y10S420/903

    摘要： A novel encoding system, compositions for use therein and methods for determining the source, location and/or identity of a particular item or component of interest is provided. In particular, the present invention utilizes a collection of one or more sizes of populations of semiconductor nanocrystals having characteristic spectral emissions, to “track” the source or location of an item of interest or to identify a particular item of interest. The semiconductor nanocrystals used in the inventive compositions can be selected to emit a desired wavelength to produce a characteristic spectral emission in narrow spectral widths, and with a symmetric, nearly Gaussian line shape, by changing the composition and size of the semiconductor nanocrystal. Additionally, the intensity of the emission at a particular characteristic wavelength can also be varied, thus enabling the use of binary or higher order encoding schemes.

    摘要翻译： 提供了一种新颖的编码系统，用于其中的组合物和用于确定感兴趣的特定物品或组分的来源，位置和/或身份的方法。 特别地，本发明利用具有特征光谱发射的一个或多个尺寸的半导体纳米晶体群体的集合来“跟踪”感兴趣的物体的源或位置或识别感兴趣的特定物品。 本发明组合物中使用的半导体纳米晶体可以通过改变半导体纳米晶体的组成和尺寸来选择发射所需的波长以产生窄光谱宽度和对称的几乎高斯线形的特征光谱发射。 此外，特定特征波长处的发射强度也可以变化，从而能够使用二进制或更高阶编码方案。

    SYSTEMS AND METHODS FOR MICROFLUIDIC CRYSTALLIZATION
    35.
    发明申请
    SYSTEMS AND METHODS FOR MICROFLUIDIC CRYSTALLIZATION 审中-公开
    微流化结晶的系统和方法

    公开(公告)号：US20100298602A1

    公开(公告)日：2010-11-25

    申请号：US12468365

    申请日：2009-05-19

    申请人： Mahmooda Sultana ,  Klavs F. Jensen

    发明人： Mahmooda Sultana ,  Klavs F. Jensen

    IPC分类号： C07C229/08 ,  G01N15/00 ,  C07C229/06

    CPC分类号： C07C227/42 ,  C07C229/08

    摘要： Systems and methods for crystallization in microfluidic systems are generally described. Many applications require the collection of time-resolved data to determine advantageous conditions for crystallization. The present invention provides tools and related techniques which address this need, as well as a platform for the growth of crystals within microfluidic channels. The systems and methods described herein provide, in one aspect, tools that allow for controlled, stable crystallization of organic materials in microfluidic channels. The invention can interface not only with microfluidic/microscale equipment, but with macroscale equipment to allow for the easy injection of fluids (e.g., fluids containing crystal precursor), extraction of crystals, determination of one or more crystal properties (e.g., crystal size, size distribution among multiple crystals, morphology, etc.), etc.

    摘要翻译： 通常描述微流体系统中用于结晶的系统和方法。 许多应用需要收集时间分辨数据来确定结晶的有利条件。 本发明提供了解决这一需求的工具和相关技术，以及用于在微流体通道内生长晶体的平台。 本文所述的系统和方法在一个方面提供允许有机材料在微流体通道中受控的稳定结晶的工具。 本发明不仅可以与微流体/微型设备接口，而且可以与宏观设备相接合，以便容易地注入流体（例如，含有晶体前体的流体），提取晶体，确定一种或多种晶体性质（例如晶体尺寸， 多晶体的大小分布，形态等）等

    PUMPING AND FLOW CONTROL IN SYSTEMS INCLUDING MICROFLUIDIC SYSTEMS
    36.
    发明申请
    PUMPING AND FLOW CONTROL IN SYSTEMS INCLUDING MICROFLUIDIC SYSTEMS 有权
    系统中的泵送和流量控制，包括微流体系统

    公开(公告)号：US20100170572A1

    公开(公告)日：2010-07-08

    申请号：US12312348

    申请日：2007-11-06

    申请人： Hemantkumar R. Sahoo ,  Klavs F. Jensen

    发明人： Hemantkumar R. Sahoo ,  Klavs F. Jensen

    IPC分类号： F17D1/16 ,  G05D7/00 ,  B81B3/00 ,  G05D11/02

    CPC分类号： B01L3/50273 ,  B01L2200/146 ,  B01L2300/0816 ,  B01L2300/14 ,  B01L2400/0487 ,  Y10T137/0396 ,  Y10T137/86485

    摘要： The present invention generally relates to devices and methods for affecting the flow rate of fluid using pressure. The invention generally provides for controlled application of pressure to flowing fluids to control pressure and flow rates of those fluids, independent of location of the fluids relative to various devices. For example, in a series of devices, each connected to another via a conduit, pressure control units can be provided between devices to raise or lower pressure and/or flow rate of fluid flowing from one device to the next. In this way, a series of interconnected devices can be arranged such that inlet fluid pressure or flow rate of any individual device can be set independently of every other device.

    摘要翻译： 本发明一般涉及使用压力影响流体流速的装置和方法。 本发明通常提供对流动流体的压力的受控应用，以控制这些流体的压力和流速，而与流体相对于各种装置的位置无关。 例如，在一系列装置中，每个装置通过管道连接到另一个装置，压力控制单元可以设置在装置之间以提高或降低从一个装置流向下一个装置的流体的压力和/或流速。 以这种方式，可以布置一系列互连的装置，使得任何单独装置的入口流体压力或流量可以独立于每个其他装置设定。

    SMALL-SCALE METHOD AND APPARATUS FOR SEPARATING MIXTURES
    37.
    发明申请
    SMALL-SCALE METHOD AND APPARATUS FOR SEPARATING MIXTURES 有权
    用于分离混合物的小尺寸方法和装置

    公开(公告)号：US20100122899A1

    公开(公告)日：2010-05-20

    申请号：US12617984

    申请日：2009-11-13

    申请人： Ryan L. Hartman ,  Hemantkumar R. Sahoo ,  Klavs F. Jensen

    发明人： Ryan L. Hartman ,  Hemantkumar R. Sahoo ,  Klavs F. Jensen

    IPC分类号： B01D3/00 ,  B01D11/00 ,  B01D17/00 ,  B81B7/00 ,  B01D19/00 ,  B01D47/00

    CPC分类号： B01J19/0093 ,  B01D1/0088 ,  B01D1/14 ,  B01J2219/00783 ,  B01J2219/00822 ,  B01J2219/00824 ,  B01J2219/00831 ,  B01J2219/00833 ,  B01J2219/00837 ,  B01J2219/0086 ,  B01J2219/00867 ,  B01J2219/00873 ,  B01J2219/00891 ,  B01J2219/00932

    摘要： The present invention generally relates to the small-scale separation of a mixture of two or more components with different boiling points into enriched fractions. In some embodiments, a first and second fluid (e.g., a liquid and a gas, a liquid and a liquid, etc.) are passed through a channel. The first fluid may comprise at least two components, each with a unique boiling point. Upon contacting the first and second fluids within the channel, at least a portion of the most volatile of the components in the first fluid (i.e., the component with the lowest boiling point) may be transferred from the first fluid to the second fluid. In some instances, the transfer of the volatile component(s) from the first fluid to the second fluid may be expedited by heating, in some cases above the boiling point(s) of the component(s) to be transferred from the first fluid to the second fluid. Contact between the first and second fluids may be maintained, for example, via segmented flow, bubbling flow, etc. In some instances, separation between the first and second fluids may be maintained in a channel that is essentially free of interior microchannel surface irregularities.

    摘要翻译： 本发明一般涉及将具有不同沸点的两种或多种组分的混合物小规模分离成富集级分。 在一些实施例中，第一和第二流体（例如液体和气体，液体和液体等）通过通道。 第一流体可以包括至少两个组分，每个组分具有独特的沸点。 在通道内接触第一和第二流体时，第一流体（即，具有最低沸点的组分）中最易挥发的组分的至少一部分可以从第一流体转移到第二流体。 在一些情况下，挥发性组分从第一流体转移到第二流体可以通过加热，在一些情况下高于要从第一流体转移的组分的沸点 到第二流体。 第一和第二流体之间的接触可以例如通过分段流动，起泡流等维持。在一些情况下，第一和第二流体之间的分离可以保持在基本上没有内部微通道表面不规则的通道中。

    METHOD AND APPARATUS FOR MICROFLUIDIC INJECTION
    38.
    发明申请
    METHOD AND APPARATUS FOR MICROFLUIDIC INJECTION 审中-公开
    微流体注射的方法和装置

    公开(公告)号：US20090209039A1

    公开(公告)日：2009-08-20

    申请号：US12370146

    申请日：2009-02-12

    申请人： Andrea Adamo ,  Luigi Adamo ,  Klavs F. Jensen

    发明人： Andrea Adamo ,  Luigi Adamo ,  Klavs F. Jensen

    IPC分类号： C12N15/00 ,  C12M1/26 ,  C12N5/06

    CPC分类号： C12M35/02

    摘要： A method and apparatus for producing a jet or droplet of liquid. An injector device may include a reservoir in fluid communication with a nozzle, and a pressure gradient may be produced in the reservoir (e.g., by a piezoelectric element in an initial direction that is transverse to the emission direction of the jet or droplet) to produce a jet of liquid from the nozzle. The jet or droplet of liquid may be introduced through a cell membrane and into the cell interior in such a way that damage to the cell membrane that would cause cell death is avoided. An electrode may be formed adjacent a fluid channel by conducting a liquid material, such as solder, from a reservoir and into an electrode portion of an electrode channel to a location adjacent the fluid channel. A passageway between the electrode channel and the fluid channel may prevent flow of the liquid electrode material into the fluid channel during electrode formation.

    摘要翻译： 一种用于生产液体的射流或液滴的方法和装置。 注射器装置可以包括与喷嘴流体连通的储存器，并且可以在储存器中产生压力梯度（例如，通过横向于射流或液滴的排放方向的初始方向的压电元件）产生压力梯度，以产生 来自喷嘴的液体喷射。 液体的射流或液滴可以通过细胞膜引入细胞内部，从而避免细胞膜对细胞死亡的破坏。 可以通过将诸如焊料的液体材料从储存器引导到电极通道的电极部分到与流体通道相邻的位置而邻近流体通道形成电极。 在电极形成期间，电极通道和流体通道之间的通道可以防止液体电极材料流入流体通道。