公开(公告)号：US06660472B1

公开(公告)日：2003-12-09

申请号：US09509006

申请日：2000-07-17

申请人： Lise Santoro ,  Sophie Lopez ,  Bruno Colin ,  Corinne Jay ,  Cécile Paris ,  Kathleen Ann Clark Dickey

发明人： Lise Santoro ,  Sophie Lopez ,  Bruno Colin ,  Corinne Jay ,  Cécile Paris ,  Kathleen Ann Clark Dickey

IPC分类号： C12Q168

CPC分类号： C12N1/066 ,  Y10T436/143333

摘要： The invention concerns a lysis method for a biological sample comprising at least one micro-organism of the bacteria type, for releasing a nucleic material of interest belonging to said micro-organism, which consists in: providing in a container a biological sample in liquid medium; providing in said container at least one particulate material, relatively hard, and substantially inert with respect to the nucleic material; submitting the biological sample and particulate material mixture to a movement. The invention is characterised in that in combination, the selected movement is of the vortex type, and satisfies the following conditions: the particulate material consists of beads with diameter between 90 and 150 &mgr;m; and the apparent volume of the beads (Vb) and the volume of the liquid sample (Ve) are linked by the relationship Ve=&agr;. Vb, with &agr; ranging between 1.4 and 10 when the container is tubular in shape, and &agr; is not more than 2.1 when the container is in the shape of a disk; under such conditions, without any addition of reagent and/or additional process, the method consists in releasing directly into the liquid medium the nucleic material in native state and accessible to any reagent in a subsequent process.

摘要翻译： 本发明涉及包含至少一种细菌类微生物的生物样品的裂解方法，用于释放属于所述微生物的感兴趣的核酸，其包括：在容器中提供液体培养基中的生物样品 ; 在所述容器中提供相对于所述核材料相对较硬且基本上惰性的至少一种颗粒材料; 将生物样品和颗粒物质混合物提交到运动中。 本发明的特征在于，所选择的运动是涡流型的，并且满足以下条件：颗粒材料由直径在90至150μm之间的珠粒组成; 并且珠子（Vb）的表观体积和液体样品（Ve）的体积通过关系Ve =α连接。 Vb，当容器为管状形状时，α范围在1.4和10之间，当容器为盘形时，α不大于2.1; 在这种条件下，没有任何添加试剂和/或另外的方法，该方法包括将天然状态的核酸材料直接释放到液体介质中，并在随后的方法中可用于任何试剂。