利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

585 records (took 0.033 seconds)

    Methods and systems employing electrothermally induced flow for mixing and cleaning in microsystems
    71.
    发明授权
    Methods and systems employing electrothermally induced flow for mixing and cleaning in microsystems 有权
    在微系统中采用电热诱导流混合和清洗的方法和系统

    公开(公告)号：US07189578B1

    公开(公告)日：2007-03-13

    申请号：US10307907

    申请日：2002-12-02

    Applicant: Jianjun Feng ,  Sivaramakrishnan Krishnamoorthy ,  Vinod Bhagwan Makhijani

    Inventor： Jianjun Feng ,  Sivaramakrishnan Krishnamoorthy ,  Vinod Bhagwan Makhijani

    IPC: G01N1/00 ,  G01N1/10 ,  G01N35/00 ,  H05F3/00 ,  B01D57/02

    CPC classification number: B08B9/00 ,  B01F13/0079 ,  B01F13/0081 ,  B01L3/5027 ,  B01L99/00 ,  B01L2300/1833 ,  B01L2400/0415 ,  B01L2400/0442 ,  B01L2400/0493 ,  B08B7/0064 ,  F04B19/006 ,  F04B19/24 ,  Y10T29/49 ,  Y10T29/49002 ,  Y10T436/11 ,  Y10T436/25 ,  Y10T436/2575

    Abstract: A method and system for controlling flow motion in a channel/cavity in a microfluidic system includes positioning at least one pair of electrodes in and/or proximate to the channel/cavity. A buffer solution is placed in the channel/cavity, the buffer solution having at least one dielectric property that varies in response to changes in temperature of the solution. An AC/DC voltage is applied to the electrodes to generate an electric field in the channel/cavity; the AC voltage having a known magnitude and frequency and the DC voltage having a known magnitude. The magnitude of the AC/DC voltage is adjusted to cause Joule heating of the buffer solution in the channel/cavity. The geometry and position of the electrodes is adjusted to generate a temperature gradient in the buffer solution, thereby causing a non-uniform distribution of the dielectric property within the solution in the channel/cavity. The dielectric non-uniformity produces a body force and flow in the solution. Also, the frequency of the AC voltage is adjusted to generate flow of the buffer solution in the channel/cavity in response to the non-uniform distribution of the dielectric property.

    Abstract translation: 用于控制微流体系统中的通道/空腔中的流动的方法和系统包括将至少一对电极定位在通道/空腔中和/或接近通道/空腔。 将缓冲溶液放置在通道/空腔中，缓冲溶液具有响应于溶液温度变化而变化的至少一种介电特性。 AC / DC电压施加到电极以在通道/空腔中产生电场; AC电压具有已知的幅度和频率，并且DC电压具有已知的幅度。 调整AC / DC电压的大小，使通道/腔中的缓冲溶液焦耳加热。 调节电极的几何形状和位置以在缓冲溶液中产生温度梯度，从而导致溶液中的介电性质在通道/空腔中的不均匀分布。 电介质非均匀性会在溶液中产生体力和流动。 此外，响应于介电性质的不均匀分布，调节AC电压的频率以产生通道/空腔中的缓冲溶液的流动。

    Method for the detection and/or identification of bacteria present in a sample
    73.
    发明申请
    Method for the detection and/or identification of bacteria present in a sample 有权
    用于检测和/或鉴定样品中存在的细菌的方法

    公开(公告)号：US20070020720A1

    公开(公告)日：2007-01-25

    申请号：US10551989

    申请日：2004-04-02

    Applicant: Bruno Colin ,  Vincent Atrache ,  Josep Mercader Badia

    Inventor： Bruno Colin ,  Vincent Atrache ,  Josep Mercader Badia

    IPC: C12Q1/04

    CPC classification number: C12Q1/04 ,  B01L3/502 ,  B01L2300/0636 ,  B01L2300/0663 ,  B01L2300/0832 ,  B01L2300/18 ,  B01L2400/0442 ,  Y10S436/809

    Abstract: The present invention relates to a method for detecting and/or identifying bacteria present in a liquid or solid sample, characterized in that: a. the sample that may contain said bacteria is placed in a liquid culture medium, in a first container, b. a second container comprising at least one system for detecting said bacteria is provided, c. a means of transfer between the first container and the second container is provided, d. a temperature T1 is applied inside the second container, then e. a temperature T2 is applied inside the second container, f. the temperature T1 is higher than the temperature T2 such that a defined volume of culture medium is transferred from the first container to the second container, g. the presence or absence of bacteria is determined and/or the bacteria are identified within the detection system.

    Abstract translation: 本发明涉及一种用于检测和/或识别存在于液体或固体样品中的细菌的方法，其特征在于：a。 将含有所述细菌的样品置于第一容器中的液体培养基中，b。 提供了包含至少一个用于检测所述细菌的系统的第二容器，c。 提供了在第一容器和第二容器之间的转移装置，d。 在第二容器内施加温度T 1， 在第二容器内施加温度T 2，f。 温度T 1高于温度T 2，使得限定体积的培养基从第一容器转移到第二容器，g。 确定细菌的存在或不存在和/或在检测系统内识别细菌。

    Droplet transport systems and methods
    74.
    发明申请
    Droplet transport systems and methods 失效
    液滴运输系统和方法

    公开(公告)号：US20060246224A1

    公开(公告)日：2006-11-02

    申请号：US11414824

    申请日：2006-05-01

    Applicant: G. Neitzel

    Inventor： G. Neitzel

    IPC: B05D3/02 ,  B05C5/00

    CPC classification number: B01L3/502792 ,  B01J2219/00387 ,  B01J2219/00722 ,  B01L3/502784 ,  B01L2200/0626 ,  B01L2200/0673 ,  B01L2400/0406 ,  B01L2400/0442 ,  B01L2400/0448

    Abstract: Embodiments of droplet transport systems and methods are disclosed for levitating and transporting single or encapsulated droplets using thermocapillary convection. One method embodiment, among others comprises providing a droplet of a first liquid; and applying thermocapillary convection to the droplet to levitate and move the droplet.

    Abstract translation: 公开了液滴输送系统和方法的实施例，用于使用热毛细对流来悬浮和输送单个或包封的液滴。 一个方法实施例，其中包括提供第一液体的液滴; 并且将液滴的热毛细对流施加到液滴上以悬浮和移动液滴。

    Controlled flow assay device and method
    75.
    发明申请
    Controlled flow assay device and method 审中-公开
    控制流量测定装置及方法

    公开(公告)号：US20060239859A1

    公开(公告)日：2006-10-26

    申请号：US10560214

    申请日：2005-05-26

    Applicant: Per Ohman ,  Ib Mendel-Hartvig

    Inventor： Per Ohman ,  Ib Mendel-Hartvig

    IPC: B01L3/00

    CPC classification number: B01L3/502746 ,  B01L2300/0816 ,  B01L2300/0864 ,  B01L2400/0406 ,  B01L2400/0415 ,  B01L2400/0433 ,  B01L2400/0442 ,  B01L2400/086 ,  Y10T436/2575

    Abstract: A device for handling liquid samples, comprising a flow path with at least one zone for receiving the sample, and a transport or incubation zone, said zones connected by or comprising an area having projections substantially vertical to its surface, said device provided with a sink with a capacity of receiving said liquid sample, said sink comprising an area having projections substantially vertical to its surface, and said sink being adapted to respond to an external influence regulating its capacity to receive said liquid sample.

    Abstract translation: 一种用于处理液体样品的装置，包括具有用于接收样品的至少一个区域的流动路径，以及运输或孵化区域，所述区域由具有基本上垂直于其表面的突起的区域连接或包括具有突出部的区域，所述装置设置有水槽 具有接收所述液体样品的能力，所述水槽包括具有基本上垂直于其表面的突起的区域，并且所述水槽适于响应于调节其接收所述液体样品的能力的外部影响。

Patent Agency Ranking