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    • 1. 发明申请
    • Nanoporous Metal Multiple Electrode Array and Method of Making Same
    • 纳米多孔金属多电极阵列及其制作方法
    • US20130245416A1
    • 2013-09-19
    • US13822747
    • 2011-09-13
    • Martin L. YarmushErkin SekerYevgeny Berdichevsky
    • Martin L. YarmushErkin SekerYevgeny Berdichevsky
    • H01B7/30
    • H01B7/30A61B5/04001A61B5/0492G01N33/4836
    • A method is disclosed for fabricating a low-impedance nanoporous metal multiple electrode array for measuring electrophysiology activity. A patterned photoresist is applied to a substrate, in which the patterned photoresist corresponds to a pattern of the nanoporous metal multiple electrode array. A metal alloy including a sacrificial alloying element is deposited in the pattern of the nanoporous metal electrode array. The patterned photoresist is removed to expose the metal alloy as deposited. At least part of the sacrificial alloying element is removed from the metal alloy to create nanoporous metal electrode tips thereby forming the nanoporous metal multiple electrode array. The resultant nanoporous metal multiple electrode array has improved impedance characteristics in comparison to conventional multiple electrode arrays.
    • 公开了一种用于制造用于测量电生理活性的低阻抗纳米多孔金属多电极阵列的方法。 将图案化的光致抗蚀剂施加到基底,其中图案化的光致抗蚀剂对应于纳米多孔金属多电极阵列的图案。 包括牺牲合金元素的金属合金以纳米多孔金属电极阵列的图案沉积。 去除图案化的光致抗蚀剂以露出沉积的金属合金。 牺牲合金元素的至少一部分从金属合金去除以产生纳米多孔金属电极末端,从而形成纳米多孔金属多电极阵列。 与常规多电极阵列相比,所得纳米多孔金属多电极阵列具有改进的阻抗特性。
    • 2. 发明授权
    • Nanoporous metal multiple electrode array and method of making same
    • 纳米多孔金属多电极阵列及其制作方法
    • US09070492B2
    • 2015-06-30
    • US13822747
    • 2011-09-13
    • Martin L. YarmushErkin SekerYevgeny Berdichevsky
    • Martin L. YarmushErkin SekerYevgeny Berdichevsky
    • A61B5/0492H01B7/30A61B5/04G01N33/483
    • H01B7/30A61B5/04001A61B5/0492G01N33/4836
    • A method is disclosed for fabricating a low-impedance nanoporous metal multiple electrode array for measuring electrophysiology activity. A patterned photoresist is applied to a substrate, in which the patterned photoresist corresponds to a pattern of the nanoporous metal multiple electrode array. A metal alloy including a sacrificial alloying element is deposited in the pattern of the nanoporous metal electrode array. The patterned photoresist is removed to expose the metal alloy as deposited. At least part of the sacrificial alloying element is removed from the metal alloy to create nanoporous metal electrode tips thereby forming the nanoporous metal multiple electrode array. The resultant nanoporous metal multiple electrode array has improved impedance characteristics in comparison to conventional multiple electrode arrays.
    • 公开了一种用于制造用于测量电生理活性的低阻抗纳米多孔金属多电极阵列的方法。 将图案化的光致抗蚀剂施加到基底上,其中图案化的光致抗蚀剂对应于纳米多孔金属多电极阵列的图案。 包括牺牲合金元素的金属合金以纳米多孔金属电极阵列的图案沉积。 去除图案化的光致抗蚀剂以露出沉积的金属合金。 牺牲合金元素的至少一部分从金属合金去除以产生纳米多孔金属电极末端,从而形成纳米多孔金属多电极阵列。 与常规多电极阵列相比,所得纳米多孔金属多电极阵列具有改进的阻抗特性。
    • 8. 发明申请
    • HOMOGENEOUS DIFFERENTIATION OF HEPATOCYTE-LIKE CELLS FROM EMBRYONIC STEM CELLS
    • 来自胚胎干细胞的肝细胞样细胞的均质分化
    • US20100143313A1
    • 2010-06-10
    • US12634983
    • 2009-12-10
    • Martin L. YarmushCheul H. ChoArno W. Tilles
    • Martin L. YarmushCheul H. ChoArno W. Tilles
    • A61K35/407C12N5/074A61P1/16
    • A61K35/407C12N5/067C12N2500/30C12N2500/62C12N2501/23C12N2501/385C12N2501/39C12N2502/14C12N2506/02
    • One of the major hurdles of cellular therapies for the treatment of liver failure is the low availability of functional human hepatocytes. Although embryonic stem (ES) cells represent a potential cell source for therapy, current methods for differentiation result in mixed cell populations or low yields of the cells of interest. The present invention provides for a rapid, direct differentiation method that yields a homogeneous population of endoderm-like cells with 95% purity. In one embodiment, mouse ES cells cultured on top of collagen-sandwiched hepatocytes differentiate and proliferate into a uniform and homogeneous cell population of endoderm-like cells. The endoderm-like cell population was positive for Foxa2, Sox17 and AFP, and could further differentiate into hepatocyte-like cells that demonstrate hepatic morphology, functionality, and gene and protein expression. Incorporating the hepatocyte-like cells into a bioartificial liver device to treat fulminant hepatic failure improved animal survival, thereby underscoring the therapeutic potential of these cells.
    • 用于治疗肝衰竭的细胞疗法的主要障碍之一是功能性人肝细胞的可用性低。 尽管胚胎干细胞(ES)细胞代表治疗的潜在细胞来源,但目前的分化方法导致混合细胞群体或感兴趣细胞的低产量。 本发明提供快速,直接的分化方法,其产生具有95%纯度的内胚层样细胞的均匀群体。 在一个实施方案中,在胶原夹心的肝细胞上培养的小鼠ES细胞分化并增殖成内胚层样细胞的均匀且均匀的细胞群。 内皮样细胞群对Foxa2,Sox17和AFP呈阳性,可进一步分化为肝细胞样细胞,其表现出肝脏形态,功能,基因和蛋白质表达。 将肝细胞样细胞结合到生物人工肝脏装置中以治疗暴发性肝衰竭改善了动物存活,从而强调了这些细胞的治疗潜力。