Methods of alteration of surface affinities using non-chemical force-creating fields
    84.
    发明授权
    Methods of alteration of surface affinities using non-chemical force-creating fields 有权
    使用非化学力创造领域改变表面亲和力的方法

    公开(公告)号:US07659053B2

    公开(公告)日:2010-02-09

    申请号:US11181371

    申请日:2005-07-14

    IPC分类号: C12Q1/00 G01N33/53

    摘要: The present invention provides a series of methods, compositions, and articles for altering a property of a surface (for example, the cytophilicity and/or the hydrophilicity), by exposing at least a portion of the surface to a non-chemical, force-creating field and/or force, such as an electric field. The field/force may be created by any suitable technique. For instance, the field can be created by applying a voltage across the surface, by electrical induction, etc. In certain embodiments, the surface includes molecules attached thereto that can be detached when exposed to non-chemical, force-creating fields and/or forces, thereby altering the chemical composition of at least a portion of the surface. In one set of embodiments, the molecules attached to the surface may include molecules forming a self-assembled monolayer on the surface. In some embodiments, the molecules attached to the surface may include thiol moieties (e.g., as in an alkanethiol), by which the molecule can become attached to the surface. In certain cases, the molecules may be terminated at the unattached end with one or more hydrophilic groups, for example, unmodified ethylene glycol moieties. In some cases, the molecules attached to the surface may include one or more moieties that can bind to various entities such as proteins, peptides, nucleic acids, drugs, cells, etc. In certain embodiments, the techniques are used to enable novel assays for cell motility and/or spreading and screening tests for determining drugs and/or treatments effective in increasing or decreasing cell shape changes and/or motility on surfaces.

    摘要翻译: 本发明提供了一系列用于改变表面性质(例如,细胞毒性和/或亲水性)的方法,组合物和制品,通过将至少一部分表面暴露于非化学, 产生场和/或力,例如电场。 场/力可以通过任何合适的技术来产生。 例如,可以通过在表面上施加电压,通过电感应等来产生该场。在某些实施例中,表面包括附着于其上的分子,当暴露于非化学,力产生场和/或 从而改变表面的至少一部分的化学成分。 在一组实施方案中,连接到表面的分子可以包括在表面上形成自组装单层的分子。 在一些实施方案中,附着于表面的分子可以包括硫醇部分(例如,如在链烷硫醇中),通过该分子可以使分子附着于表面。 在某些情况下,分子可以在一个或多个亲水基团例如未改性的乙二醇部分的非附着端封端。 在一些情况下,附着于表面的分子可以包括可结合各种实体的一个或多个部分,例如蛋白质,肽,核酸,药物,细胞等。在某些实施方案中,该技术用于使新的测定方法 用于确定有效增加或减少细胞形状变化和/或表面活力的药物和/或治疗的细胞运动性和/或扩散和筛选试验。

    Adjustable solubility in sacrificial layers for microfabrication
    86.
    发明申请
    Adjustable solubility in sacrificial layers for microfabrication 有权
    用于微细加工的牺牲层中可调节的溶解度

    公开(公告)号:US20090236310A1

    公开(公告)日:2009-09-24

    申请号:US11918269

    申请日:2006-04-14

    IPC分类号: B44C1/22

    摘要: The present invention provides fabrication methods using sacrificial materials comprising polymers. In some embodiments, the polymer may be treated to alter its solubility with respect to at least one solvent (e.g., aqueous solution) used in the fabrication process. The preparation of the sacrificial materials is rapid and simple, and dissolution of the sacrificial material can be carried out in mild environments. Sacrificial materials of the present invention may be useful for surface micromachining, bulk micromachining, and other microfabrication processes in which a sacrificial layer is employed for producing a selected and corresponding physical structure.

    摘要翻译: 本发明提供了使用包含聚合物的牺牲材料的制造方法。 在一些实施方案中,可以处理聚合物以改变其相对于在制造过程中使用的至少一种溶剂(例如水溶液)的溶解度。 牺牲材料的制备是快速和简单的,牺牲材料的溶解可以在温和的环境中进行。 本发明的牺牲材料可用于表面微加工,体微加工和其它微加工工艺,其中牺牲层用于产生选定的和相应的物理结构。

    Fluid waveguide and uses thereof
    87.
    发明申请
    Fluid waveguide and uses thereof 审中-公开
    流体波导及其用途

    公开(公告)号:US20090097808A1

    公开(公告)日:2009-04-16

    申请号:US11658339

    申请日:2005-08-01

    IPC分类号: G02B6/032

    CPC分类号: G02B6/032 G02B6/10 G02B6/122

    摘要: The invention relates to methods and apparatuses for guiding and emitting electromagnetic radiation from a fluid waveguide. Various methods for changing optical properties (e.g., refractive index, absorption, and fluorescence) and/or physical properties (e.g., magnetic susceptibility, electrical conductivity, and temperature) of either the waveguide core or the cladding, or both, are provided herein. In one embodiment, electromagnetic radiation is guided and/or emitted at multiple distinct wavelengths, including emission in the form of an essentially continuous band, in some cases covering at least 150 nanometers. In another embodiment, methods for splitting a waveguide core and/or the joining of at least two waveguide cores in a waveguide are provided. In yet another embodiment, the invention includes the use of thermal gradients to generate a waveguide and/or to change the properties of waveguides. Embodiments of the waveguides may be used for optical detection or spectroscopic analysis.

    摘要翻译: 本发明涉及用于引导和发射来自流体波导的电磁辐射的方法和装置。 本文提供用于改变波导芯或包层或两者的光学性质(例如,折射率,吸收和荧光)和/或物理性质(例如磁化率,导电性和温度)的各种方法。 在一个实施例中,电磁辐射是以多个不同的波长被引导和/或发射的,包括基本连续带形式的发射,在某些情况下覆盖至少150纳米。 在另一个实施例中,提供了用于在波导中分离波导芯和/或至少两个波导芯的接合的方法。 在另一个实施例中,本发明包括使用热梯度来产生波导和/或改变波导的性质。 波导的实施例可以用于光学检测或光谱分析。