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    • 3. 发明公开
    • 입자 조작 및/또는 검출을 위한 방법 및 장치
    • 用于操作和/或检测颗粒的方法和装置
    • KR1020080059146A
    • 2008-06-26
    • KR1020087003997
    • 2006-07-19
    • 메나리니 실리콘 바이오시스템스 에스.피.에이.
    • 메도로,지아니마나레시,니콜로
    • B03C5/02G01N27/403
    • G01N27/44756B03C5/026B03C2201/24G01N15/1031G01N15/1459
    • Method and apparatus for the manipulation and/or control of the position of particles by means of time-variable fields of force. The fields of force can be of dielectrophoresis (positive or negative) , electrophoresis, electrohydrodynamic or electrowetting on dielectric, characterized by a set of stable points of equilibrium for the particles. In a first embodiment of the method, each point of equilibrium in a homogeneous array of elements can contain a particle or a group of particles. Each of said points of equilibrium can be joined without distinction to any of the adjacent points of equilibrium, allowing the entrapped particles to share the basin of attraction thereof. This control is made by acting exclusively on the signals shared by all the elements belonging to the same row or column, used for distributing the voltages necessary for the generation of the forces so as to guide said particles along paths each of which can be broken down into a succession of elementary steps, from an initial position to a final destination. Practical implementations of the method provide apparatuses for the manipulation of particles in a two-dimensional space. In a second embodiment of the method, the control is made by acting exclusively on the digital signals used for controlling a deviator associated to each element of an array, through which to distribute the voltages necessary for the generation of the forces by means of an apparatus constituted by n+m digital signals. In a further embodiment of the method, each point of equilibrium in a non-homogeneous array of elements can be dedicated to containing a particle or a group of particles (parking cells) or else to conveying particles in pre-set directions (lanes or conveyors). According to the present invention each path can be broken down into the succession of elementary steps constituted by entrance to, or exit from, a pre-set conveying region, thus allowing each particle to be guided from an initial position to any final destination. In a further embodiment of the method, the points of equilibrium are constrained, in groups, to move in a synchronous way, along certain lanes. Points of exchange between the groups enable the particles to pass from one group to another, i.e., to change lane. The subject of the present invention is moreover a device that advantageously implements some of the aforesaid methods. The subject of the present invention is finally a family of apparatuses for the identification and/or quantification and/or characterization of particles by means of impedance meter and/or optical sensors.
    • 用于通过时变场力来操纵和/或控制颗粒位置的方法和装置。 力场可以是介电电泳(正或负),电泳,电动力学或电介质上的电润湿,其特征在于一组稳定的颗粒平衡点。 在该方法的第一实施方案中,均匀元素阵列中的每个平衡点可以包含颗粒或一组颗粒。 所述平衡点中的每一个可以连接而不区分任何相邻的平衡点,从而允许包裹的颗粒共享其吸引盆。 该控制通过仅对属于同一行或列的所有元件共享的信号进行,用于分配产生力所必需的电压,以便沿着可以被分解的路径引导所述粒子 成为从初始位置到最终目的地的一系列基本步骤。 该方法的实际实现提供了用于在二维空间中操纵粒子的装置。 在该方法的第二实施例中,通过仅对用于控制与阵列的每个元件相关联的偏移器的数字信号进行控制来进行控制,通过该数字信号通过装置分配产生力所需的电压 由n + m数字信号构成。 在该方法的另一实施例中,非均匀阵列元件中的每个平衡点可以专用于容纳颗粒或一组颗粒(停车单元),或者将颗粒输送到预先设定的方向(车道或输送机 )。 根据本发明,每个路径可以分解成由预设输送区域的入口或出口构成的基本步骤的连续,从而允许每个粒子从初始位置被引导到任何最终目的地。 在该方法的另一实施例中,平衡点被约束成群,沿同一条车道以同步的方式移动。 各组之间的交换点使得粒子能够从一个组传递到另一个组,即改变车道。 本发明的主题还是有利地实现上述一些方法的装置。 本发明的主题最后是用于通过阻抗计和/或光学传感器识别和/或定量和/或表征颗粒的装置系列。