Culture medium for long-term culture of hepatocytes
    24.
    发明申请
    Culture medium for long-term culture of hepatocytes 审中-公开
    长期培养肝细胞的培养基

    公开(公告)号:US20040229355A1

    公开(公告)日:2004-11-18

    申请号:US10437627

    申请日:2003-05-14

    Abstract: A culture medium, which is capable of sustaining long-term cultures of hepatocytes and liver cells. In this medium, mammalian primary hepatocytes retain highly replicative capacity and hepatic gene expression activity. The liver cells from genetically defined sources may be reproducibly immortalized without the delivery of foreign genes, such as viral oncogenes. The immortalized hepatocytes are non-tumorigenic, making them suitable for clinical and therapeutic purposes.

    Abstract translation: 一种能够维持肝细胞和肝细胞长期培养的培养基。 在该培养基中,哺乳动物原代肝细胞具有高度复制能力和肝基因表达活性。 来自遗传定义的来源的肝细胞可以可再现地永生化,而不会输送外源基因,如病毒癌基因。 永生化肝细胞是非致瘤性的,使其适合临床和治疗目的。

    FUNCTIONALIZED POLYOLEFIN CAPILLARIES FOR OPEN TUBULAR ION CHROMATOGRAPHY

    公开(公告)号:US20210016266A1

    公开(公告)日:2021-01-21

    申请号:US17022304

    申请日:2020-09-16

    Abstract: Open tubular capillary columns for liquid and ion chromatography, based upon an ionically impermeable polyolefin capillary having a bore with a sulfonate-group- or amine-group-functionalized internal surface. The capillary columns may include a coating of ion exchanging nanoparticles electrostatically bound to the functionalized internal surface. The capillary columns may be made by exposing the interior surface to a sulfonating reagent comprising chlorosulfonic acid (CISO3H), preferably from 85 wt % to 95 wt % chlorosulfonic acid at a process temperature of 20 to 25° C. The interior surface may be subsequently exposed to an asymmetrical diamine to form a sulfonic mid-linkage to the diamine, i.e., to form a sulfonamide-linked, amine-group-functionalized internal surface. The coating may be provided by subsequently exposing the interior surface to an aqueous suspension of ion exchanging nanoparticles to electrostatically bond the ion exchanging nanoparticles to the functionalized internal surface.

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