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    • 51. 发明申请
    • Micro-Volume Liquid Ejection System
    • 微量液体喷射系统
    • US20080267828A1
    • 2008-10-30
    • US11666032
    • 2004-11-22
    • Dong WangKun ZouJianxing YeYelei SunHui ZhuXianhua WangJing Cheng
    • Dong WangKun ZouJianxing YeYelei SunHui ZhuXianhua WangJing Cheng
    • B65D83/00
    • B01L3/0265B01L2400/0487B01L2400/0666Y10T436/2575
    • The present invention relates to a micro-volume liquid ejection system, including an air pressure module, a micro-ejection unit which is connected with the air pressure module by means of pipes, and a control circuit which is connected with the air pressure module and the micro-ejection unit respectively. In the present invention, due to air is used as the pressure medium, on one hand, as the sample does not contact with the pressure regulating module, the efficiency of cleaning process is improved, on the other hand, the volume of the sample needed in the sample ejecting process is only equal to the cavity-dimension of the micro-ejection unit by not need to fill the whole pipe with liquid. During the sample ejecting process, it is not need to regulate the pressure. After the sample ejecting is finished, the sample can be put into its original place, so as to greatly save the sample. The present invention is connected with the manipulator, so as to sample from the sample plate, eject sample and clean the pipes automatically, and it can also dispense a multiplicity of samples to micro-array substrate conveniently. The present invention can be used for transferring or dispensing the micro volume liquid of nL grade and L grade widely, and all kinds of the micro-volume liquid including biological liquid.
    • 微体积液体喷射系统技术领域本发明涉及一种微体积液体喷射系统,包括空气压力模块,通过管道与空气压力模块连接的微型喷射单元,以及与气压模块连接的控制电路和 微型喷射单元。 在本发明中,由于空气被用作压力介质,一方面由于样品不与压力调节模块接触,因此提高了清洗过程的效率,另一方面,样品的体积需要 在样品喷射过程中,仅通过不需要用整个管道填充液体就等于微喷射单元的腔体尺寸。 在样品喷射过程中,不需要调节压力。 样品喷射完成后,样品可以放在原来的位置,大大节省样品。 本发明与机械手连接,从样品板上取样,自动排出样品并清洗管道,方便地将多个样品分配给微阵列基板。 本发明可广泛用于转移或分配nL级和L级微量液体,以及各种微体积液体,包括生物液体。
    • 54. 发明申请
    • Apparatuses and methods for assaying analytes using photoelectrochemical labels
    • 使用光电化学标记分析分析物的装置和方法
    • US20060148102A1
    • 2006-07-06
    • US10535905
    • 2003-05-06
    • Lianghong GuoDong DongDong ZhengFuquan WangXiqiang YangJing Cheng
    • Lianghong GuoDong DongDong ZhengFuquan WangXiqiang YangJing Cheng
    • G01N33/551
    • G01N33/582C12Q1/6816G01N2458/30C12Q2563/113C12Q2523/313
    • The present invention provides apparatus, kits and methods for assaying analytes using photoelectrochemical molecules as labels. Specifically, the present invention provides a method for assaying an analyte, comprising: a) contacting a sample suspected of containing an analyte with a reactant capable of binding and/or reacting with the analyte under suitable conditions to allow binding of analyte, if present in the sample, to the reactant; and b) assessing binding and/or reacting between the analyte and the reactant to determine presence and/or amount of analyte in the sample, wherein the reactant, analyte, or additional reactant or additional analyte or analyte analog is labeled with a photoelectrochemically active molecule. The assessing step also comprises converting the photoelectrochemically active molecule with light to an excited state in the presence of an electrode, and assessing an electric current generated by an electron transfer between the excited photoelectrochemically active molecule and the electrode.
    • 本发明提供了使用光电化学分子作为标记来测定分析物的装置,试剂盒和方法。 具体地,本发明提供了一种用于分析分析物的方法,其包括:a)在合适的条件下将疑似含有分析物的样品与能够与分析物结合和/或反应的反应物接触,以使分析物(如果存在于 样品,反应物; 和b)评估分析物和反应物之间的结合和/或反应以确定样品中分析物的存在和/或量,其中反应物,分析物或附加反应物或其他分析物或分析物类似物用光电化学活性分子标记 。 评估步骤还包括在电极存在下将光电化学活性分子与光转化为激发态,并评估由激发的光电化学活性分子和电极之间的电子转移产生的电流。
    • 57. 发明授权
    • Methods and compositions for identifying nucleic acid molecules using nucleolytic activities and hybridization
    • 用核酸分解活性和杂交鉴定核酸分子的方法和组合物
    • US06900013B1
    • 2005-05-31
    • US09648081
    • 2000-08-25
    • Guoqing WangLei WuXiaobo WangJing ChengWeiPing Yang
    • Guoqing WangLei WuXiaobo WangJing ChengWeiPing Yang
    • C07H21/02C07H21/04C12M1/34C12P19/34C12Q1/68
    • C12Q1/6816C07H21/04C12Q1/6827C12Q1/6837C12Q2521/101C12Q2533/101C12Q2563/107C12Q2521/327C12Q2537/143C12Q2565/501
    • The present invention recognizes that identifying genes expressed during developmental processes, stress responses, and disease states can advance understanding of these biological functions, and can contribute to identifying targets for therapeutic drugs. In addition, the present invention recognizes that rapid and reliable profiling of genetic variations, such as mutations and SNPs, is of increasing importance to diagnostics, prognostics, forensics, heredity determinations, and pharmacogenetics. One aspect of the present invention provides a method of identifying one or more nucleic acid molecules that are expressed under a given set of conditions based on their complementarity to known sequences, or one or more mutations or SNPs in a population of nucleic acid molecules. The method includes: contacting at least one probe nucleic acid molecule with a survey population of nucleic acid molecules under conditions that promote nucleic acid hybridization to generate a probe-survey population mixture of nucleic acid molecules, treating the probe-survey population mixture of nucleic acid molecules with a nucleolytic activity, such that nucleolytic activity-sensitive nucleic acid molecules are digested, and contacting the resulting mixture of nucleolytic activity-protected nucleic acid molecules with a solid support comprising one or more attached nucleic acid molecules to generate attached nucleic acid molecule/nucleolytic activity-protected nucleic acid molecule complexes, and identifying one or more of the attached nucleic acid molecules or one or more of the nucleolytic activity-protected nucleic acid molecules in one or more attached nucleic acid molecule/nucleolytic activity-protected nucleic acid molecule complexes.
    • 本发明认识到,在发育过程,应激反应和疾病状态期间表达的鉴定基因可以促进对这些生物功能的理解,并且可以有助于鉴定治疗药物的靶标。 此外,本发明认识到,遗传变异的快速和可靠的分析,例如突变和SNP,对于诊断,预后,取证,遗传测定和药物遗传学是越来越重要的。 本发明的一个方面提供了鉴定一种或多种核酸分子的方法,所述核酸分子基于它们与已知序列的互补性或核酸分子群体中的一个或多个突变或SNP在给定条件下表达。 该方法包括:在促进核酸杂交以产生核酸分子的探针 - 调查群体混合物的条件下使至少一个探针核酸分子与核酸分子的调查群体接触,处理核酸的探针 - 调查群体混合物 具有核分解活性的分子,使得消解活性敏感的核酸核酸分子,并使得到的核分解活性保护的核酸分子的混合物与包含一个或多个连接的核酸分子的固体支持物接触,以产生附着的核酸分子/ 核分解活性保护的核酸分子复合物,以及鉴定一个或多个连接的核酸分子/核酸分解活性保护的核酸分子复合物中所附连的核酸分子或一个或多个核裂解活性保护的核酸分子 。