METHOD FOR REDUCING NUCLEIC ACID AND ADSORBING FILTER

    公开(公告)号:US20230082473A1

    公开(公告)日:2023-03-16

    申请号:US17801715

    申请日:2021-02-19

    Abstract: The objective of the present invention is to provide a method for effectively and easily reducing an amount of a specific impurity in a liquid. The method for reducing an amount of a nucleic acid in a liquid according to the present invention is characterized in comprising the steps of contacting the liquid with a water-insoluble magnesium compound to adsorb at least a part of the nucleic acid on the water-insoluble magnesium compound. Also, the objective of the present invention is to provide an adsorbing filter useful for purifying a useful substance, such as an antibody and an antibody-like molecule, used as a purification material for effectively removing an impurity with easily maintaining the yield of the target substance due to excellent adsorption ability to a nucleic acid and low adsorption ability to an antibody, an antibody-like molecule or the like. The adsorbing filter is characterized in comprising the layer comprising a water-insoluble magnesium compound.

    Method of removing DNA from biotechnological products

    公开(公告)号:US10301588B2

    公开(公告)日:2019-05-28

    申请号:US15533432

    申请日:2015-12-09

    Applicant: BASF SE

    Abstract: The present invention relates to a method for degrading DNA in a sample obtained by microbial fermentation or biotransformation, comprising treating the sample with a combination of increased temperature and low pH. It also relates to a method for releasing DNA from a microbial cell, comprising incubating the microbial cell at a temperature of 45° C. to 55° C. for two to ten hours. Finally, the present invention provides a method for producing a product, comprising a step of releasing DNA from a microbial cell and degrading said DNA.

    Method of isolating pure mitochondrial DNA

    公开(公告)号:US09868946B2

    公开(公告)日:2018-01-16

    申请号:US14440694

    申请日:2013-11-01

    Applicant: GIRIHLET INC.

    CPC classification number: C12N15/1006 C12N9/16 C12N15/1003 C12Y301/11005

    Abstract: A method for preparing circular double stranded mitochondrial DNA (mtDNA) substantially free of genomic DNA (gDNA) comprising the steps of: providing a cellular lysate free of protein and RNA contaminants, precipitating cellular debris and proteins out of said lysate and obtaining a solution comprising purified circular double stranded mitochondrial DNA (mtDNA) and genomic DNA (gDNA), incubating said solution with an amount of Hind Exonuclease V for a time and at a temperature effective to cleave non-circular DNA and obtain circular double stranded mtDNA, incubating said circular double stranded mtDNA with an amount of Ampure beads effective to bind said circular double stranded mtDNA, washing said beads with ethanol, and eluting said mtDNA from said beads, wherein said method is free of ultra-centrifugation.

    System and method for laser dissection
    9.
    发明授权
    System and method for laser dissection 失效
    激光切割的系统和方法

    公开(公告)号:US08744163B2

    公开(公告)日:2014-06-03

    申请号:US13023416

    申请日:2011-02-08

    Applicant: Scott Morris

    Inventor: Scott Morris

    Abstract: Systems, devices, and methods for removing areas of tissue are described. A programmable laser may remove precise areas of tissue while the tissue remains substantially frozen. The laser is programmed in part by analyzing a reference image of a representative tissue section. A software program may receive digital images of test slices. Areas of interest in the image may be selected by a user. The software program can then create and send cut instructions to the programmable laser. The laser may be configured to make perforated cuts to remove the area of interest without melting the removed section.

    Abstract translation: 描述了用于去除组织区域的系统,装置和方法。 可编程激光器可以在组织保持基本上冷冻的同时去除组织的精确区域。 通过分析代表性组织切片的参考图像来部分地对激光进行编程。 软件程序可以接收测试片的数字图像。 图像中的感兴趣区域可以由用户选择。 软件程序可以创建并发送剪切指令给可编程激光器。 激光器可以被配置为制造穿孔切口以去除感兴趣的区域而不熔化除去的部分。

    System and method for isolation of samples
    10.
    发明授权
    System and method for isolation of samples 有权
    用于分离样品的系统和方法

    公开(公告)号:US08669096B2

    公开(公告)日:2014-03-11

    申请号:US13461487

    申请日:2012-05-01

    Applicant: Ye Zhang Honglu Wu

    Inventor: Ye Zhang Honglu Wu

    Abstract: Systems and methods for isolating samples are provided. The system comprises a first membrane and a second membrane disposed within an enclosure. First and second reservoirs can also be disposed within the enclosure and adapted to contain one or more reagents therein. A first valve can be disposed within the enclosure and in fluid communication with the first reservoir, the second reservoir, or both. The first valve can also be in fluid communication with the first or second membranes or both. The first valve can be adapted to selectively regulate the flow of the reagents from the first reservoir, through at least one of the first and second membranes, and into the second reservoir.

    Abstract translation: 提供了分离样品的系统和方法。 该系统包括设置在外壳内的第一膜和第二膜。 第一和第二储存器也可以设置在外壳内并适于在其中容纳一种或多种试剂。 第一阀可以设置在外壳内并且与第一储存器,第二储存器或两者流体连通。 第一阀也可以与第一或第二膜或两者流体连通。 第一阀可以适于选择性地调节来自第一储存器的试剂的流动,通过第一和第二膜中的至少一个进入第二储存器。

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