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    • 6. 发明授权
    • Determining DNA sequences by mass spectrometry
    • 通过质谱法测定DNA序列
    • US5003059A
    • 1991-03-26
    • US209247
    • 1988-06-20
    • Thomas M. Brennan
    • Thomas M. Brennan
    • G01N27/62C07H21/00C12Q1/68G01N33/60
    • C12Q1/6872C07H21/00
    • This invention relates to the methods, apparatus, reagents and mixtures of reagents for sequencing natural or recombinant DNA and other polynucleotides. In particular, this invention relates to a method for sequencing polynucleotides based on mass spectrometry to determine which of the four bases (adenine, guanine, cytosine or thymine) is a component of the terminal nucleotide. In particular, the present invention relates to identifying the individual nucleotides by the mass of stable nuclide markers contained within either the dideoxynucleotides, the DNA primer, or the deoxynucleotide added to the primer. This invention is particularly useful in identifying specific DNA sequences in very small quantities in biological products produced by fermentation or other genetic engineering techniques. The invention is therefore useful in evaluating safety and other health concerns related to the presence of DNA in products resulting from genetic engineering techniques.
    • 本发明涉及用于测序天然或重组DNA和其他多核苷酸的试剂的方法,装置,试剂和混合物。 特别地,本发明涉及基于质谱法测定多核苷酸的方法,以确定四个碱基(腺嘌呤,鸟嘌呤,胞嘧啶或胸腺嘧啶)中的哪一个是末端核苷酸的组分。 特别地,本发明涉及通过添加到引物中的双脱氧核苷酸,DNA引物或脱氧核苷酸中所含的稳定核素标记的质量鉴定单个核苷酸。 本发明特别可用于鉴定通过发酵或其他遗传工程技术生产的生物产品中非常少的特定DNA序列。 因此,本发明可用于评估与遗传工程技术产生的产品中DNA存在相关的安全性和其他健康问题。
    • 10. 发明授权
    • Apparatus and method for polymer synthesis using arrays
    • 使用阵列进行聚合物合成的装置和方法
    • US08084245B2
    • 2011-12-27
    • US12950335
    • 2010-11-19
    • Thomas M. Brennan
    • Thomas M. Brennan
    • C12M1/00B01L3/02
    • C07H21/00B01J19/0046B01J2219/00286B01J2219/0031B01J2219/00313B01J2219/00315B01J2219/00328B01J2219/00364B01J2219/00369B01J2219/00414B01J2219/00416B01J2219/00418B01J2219/00423B01J2219/00454B01J2219/00459B01J2219/005B01J2219/00585B01J2219/0059B01J2219/00596B01J2219/00686B01J2219/00689B01J2219/00695B01J2219/0072B01J2219/00722B01J2219/00725C07B2200/11C07K1/04C07K1/045C40B40/06C40B40/10C40B50/14C40B60/14G01N35/1072
    • A polymer synthesis apparatus (20) for building a polymer chain including a head assembly (21) having an array of nozzles (22) with each nozzle coupled to a reservoir (23) of liquid reagent (24), and a base assembly (25) having an array of reaction wells (26). A transport mechanism (27) aligns the reaction wells (26) and selected nozzles (22) for deposition of the liquid reagent (24) into selected reaction wells (26). A sliding seal (30) is positioned between the head assembly (21) and the base assembly (25) to form a common chamber (31) enclosing both the reaction well (26) and the nozzles (22) therein. A gas inlet (70) into the common chamber (31), upstream from the nozzles (22), and a gas outlet (71) out of the common chamber (31), downstream from the nozzles (22), sweeps the common chamber (31) of toxic fumes emitted by the reagents. Each reaction well (26) includes an orifice (74) extending into the well (26) which is of a size and dimension to form a capillary liquid seal to retain the reagent solution (76) in the well (26) for polymer chain growth therein. A pressure regulating device (82) is provided for controlling a pressure differential, between a first gas pressure exerted on the reaction well (26) and a second gas pressure exerted on an exit (80) of the orifice, such that upon the pressure differential exceeding a predetermined amount, the reagent solution (76) is expelled from the well (26) through the orifice (74). A method of synthesis of a polymer chain in a synthesis apparatus (20) is also included.
    • 一种用于构建聚合物链的聚合物合成设备(20),其包括具有喷嘴阵列(22)的头组件(21),每个喷嘴连接到液体试剂(24)的容器(23),以及基座组件 )具有反应孔阵列(26)。 输送机构(27)对准反应孔(26)和选定的喷嘴(22),用于将液体试剂(24)沉积到选定的反应孔(26)中。 滑动密封件(30)定位在头部组件(21)和基座组件(25)之间,以形成在其中包围反应井(26)和喷嘴(22)的公共腔室(31)。 从喷嘴(22)的上游进入公共室(31)的气体入口(70)和在公共室(31)之外的喷嘴(22)的下游的气体出口(71)扫过公共室 (31)试剂发出的有毒烟雾。 每个反应井(26)包括延伸到井(26)中的孔(74),其具有尺寸和尺寸以形成毛细管液体密封,以将试剂溶液(76)保持在井(26)中用于聚合物链增长 其中。 提供压力调节装置(82),用于控制施加在反应井(26)上的第一气体压力和施加在孔口出口(80)上的第二气体压力之间的压力差,使得在压差 超过预定量的试剂溶液(76)通过孔口(74)从孔26排出。 也包括在合成装置(20)中合成聚合物链的方法。