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    • 1. 发明申请
    • ELASTOMERIC STENCILS FOR MICROPATTERNING CELLS
    • 微型细胞的弹性模板
    • WO03062920A2
    • 2003-07-31
    • PCT/US0226003
    • 2002-08-15
    • GEN HOSPITAL CORPUNIV ILLINOISTONER MEHMETFOLCH ALBERTBEEBE DAVID J
    • TONER MEHMETFOLCH ALBERTBEEBE DAVID J
    • G06T7/00G03F
    • B01L3/5085B01L2200/12B01L2300/069B01L2300/0819B01L2300/0829B01L2300/0887B01L2300/0893B01L2300/123C12M23/12
    • The present invention provides new fabrication methods and techniques for making and using stencils to micropattern cells. These techniques may allow the fabrication of thinner stencils. The invention provides a system for selectively applying cells to predetermined regions on a substrate. A stencil is positioned adjacent to a substrate to cover some portions of the substrate, while allowing other portions of the substrate to remain uncovered. The stencil may have one or more channels passing through the stencil, and in certain cases, the channels may have a cross-sectional dimension of less than 1 mm. The stencil may be applied to a cell culture substrate in such a way as to form a microscopic cellular pattern on the substrate, and the stencil may form a seal or other watertight contact with the substrate in some cases. In one embodiment, the stencil may be applied to a substrate before seeding. Cells are applied to the uncovered portions of the surface, then the stencil may be removed if desired. The stencil may be fabricated, for example, by injecting an elastomeric precursor into a mold, or by curing an elastomeric precursor while applying pressure. In some embodiments, the surface of the stencil may also be oxidized, or it may be treated in such a way as to render the surface of the stencil more hydrophilic, for example, by treating the surface using oxygen-plasma treatment.
    • 本发明提供了制造和使用模板到微图案单元的新制造方法和技术。 这些技术可以允许制造更薄的模板。 本发明提供了一种用于选择性地将细胞施加到基底上的预定区域的系统。 将模版定位在衬底附近以覆盖衬底的一些部分,同时允许衬底的其他部分保持未被覆盖。 模板可具有一个或多个穿过模板的通道,并且在某些情况下,通道可具有小于1mm的横截面尺寸。 模板可以以在基底上形成微观细胞图案的方式施加到细胞培养基底上,并且在某些情况下,模板可以与基底形成密封或其他水密接触。 在一个实施例中,可以在播种之前将模板施加到基底上。 将细胞施加到表面的未覆盖部分,然后如果需要可以去除模板。 模板可以例如通过将弹性体前体注入模具中或通过在施加压力的同时固化弹性体前体来制造。 在一些实施例中,模板的表面也可以被氧化,或者可以以使得模板的表面更亲水的方式处理,例如通过使用氧等离子体处理来处理表面。