CHEMICALLY-SENSITIVE SENSOR ARRAY CALIBRATION CIRCUITRY

    公开(公告)号:US20200132622A1

    公开(公告)日:2020-04-30

    申请号:US16677666

    申请日:2019-11-08

    Abstract: Methods and apparatus relating to very large scale FET arrays for analyte measurements. ChemFET (e.g., ISFET) arrays may be fabricated using conventional CMOS processing techniques based on improved FET pixel and array designs that increase measurement sensitivity and accuracy, and at the same time facilitate significantly small pixel sizes and dense arrays. Improved array control techniques provide for rapid data acquisition from large and dense arrays. Such arrays may be employed to detect a presence and/or concentration changes of various analyte types in a wide variety of chemical and/or biological processes. In one example, chemFET arrays facilitate DNA sequencing techniques based on monitoring changes in hydrogen ion concentration (pH), changes in other analyte concentration, and/or binding events associated with chemical processes relating to DNA synthesis.

    CHEMICALLY-SENSITIVE SENSOR ARRAY CALIBRATION CIRCUITRY

    公开(公告)号:US20190017959A1

    公开(公告)日:2019-01-17

    申请号:US15993544

    申请日:2018-05-30

    Abstract: Methods and apparatus relating to very large scale FET arrays for analyte measurements. ChemFET (e.g., ISFET) arrays may be fabricated using conventional CMOS processing techniques based on improved FET pixel and array designs that increase measurement sensitivity and accuracy, and at the same time facilitate significantly small pixel sizes and dense arrays. Improved array control techniques provide for rapid data acquisition from large and dense arrays. Such arrays may be employed to detect a presence and/or concentration changes of various analyte types in a wide variety of chemical and/or biological processes. In one example, chemFET arrays facilitate DNA sequencing techniques based on monitoring changes in hydrogen ion concentration (pH), changes in other analyte concentration, and/or binding events associated with chemical processes relating to DNA synthesis.

    MODIFIED PROTEINS AND METHODS OF MAKING AND USING SAME
    24.
    发明申请
    MODIFIED PROTEINS AND METHODS OF MAKING AND USING SAME 有权
    改良蛋白质及其制备方法和使用方法

    公开(公告)号:US20150260680A1

    公开(公告)日:2015-09-17

    申请号:US14724354

    申请日:2015-05-28

    CPC classification number: C12Q1/6869 C12N9/1252 C12Y207/07007 G01N27/4145

    Abstract: Methods, compositions, systems, apparatuses and kits comprising modified proteins, particularly modified nucleic acid-binding proteins with altered buffering properties are provided. For example, in some embodiments, methods of forming modified proteins including one or more amino acid modifications to achieve desired pKa values are described. Furthermore, the invention provides methods for using such modified proteins in ion-producing reactions, such as ion-based nucleic acid sequencing reactions.

    Abstract translation: 提供了包含修饰的蛋白质,特别是具有改变的缓冲性质的经修饰的核酸结合蛋白质的方法,组合物,系统,装置和试剂盒。 例如,在一些实施方案中,描述了形成包含一个或多个氨基酸修饰以获得所需pKa值的修饰蛋白质的方法。 此外,本发明提供了在离子产生反应中使用这些修饰蛋白质的方法,例如基于离子的核酸测序反应。

    NUCLEIC ACID AMPLIFICATION
    26.
    发明申请
    NUCLEIC ACID AMPLIFICATION 有权
    核酸放大

    公开(公告)号:US20140080717A1

    公开(公告)日:2014-03-20

    申请号:US14023361

    申请日:2013-09-10

    Abstract: In some embodiments, the present teachings provide methods for nucleic acid amplification, comprising forming a reaction mixture, and subjecting the reaction mixture to conditions suitable for nucleic acid amplification. In some embodiments, methods for nucleic acid amplification include subjecting the nucleic acid to be amplified to partially denaturing conditions. In some embodiments, methods for nucleic acid amplification include amplifying without fully denaturing the nucleic acid that is amplified. In some embodiments, the methods for nucleic acid amplification employ an enzyme that catalyzes homologous recombination and a polymerase. In some embodiments, methods for nucleic acid amplification can be conducted in a single reaction vessel. In some embodiments, methods for nucleic acid amplification can be conducted in a single continuous liquid phase of a reaction mixture, without need for compartmentalization of the reaction mixture or immobilization of reaction components. In some embodiments, methods for nucleic acid amplification comprise a amplifying at least one polynucleotide onto a surface under isothermal amplification conditions, optionally in the presence of a polymer. The polymer can include a sieving agent and/or a diffusion-reducing agent.

    Abstract translation: 在一些实施方案中,本教导提供核酸扩增方法,包括形成反应混合物,并使反应混合物经受适合于核酸扩增的条件。 在一些实施方案中,用于核酸扩增的方法包括将待扩增的核酸进行部分变性的条件。 在一些实施方案中,用于核酸扩增的方法包括扩增而不完全变性扩增的核酸。 在一些实施方案中,用于核酸扩增的方法使用催化同源重组的酶和聚合酶。 在一些实施方案中,用于核酸扩增的方法可以在单个反应容器中进行。 在一些实施方案中,用于核酸扩增的方法可以在反应混合物的单个连续液相中进行,而不需要分隔反应混合物或固定反应组分。 在一些实施方案中,用于核酸扩增的方法包括在等温扩增条件下任选地在聚合物存在下在表面上扩增至少一种多核苷酸。 聚合物可以包括筛分剂和/或扩散还原剂。

    NUCLEIC ACID AMPLIFICATION
    27.
    发明申请
    NUCLEIC ACID AMPLIFICATION 有权
    核酸放大

    公开(公告)号:US20130225421A1

    公开(公告)日:2013-08-29

    申请号:US13842296

    申请日:2013-03-15

    Abstract: In some embodiments, the present teachings provide methods for nucleic acid amplification, comprising forming a reaction mixture, and subjecting the reaction mixture to conditions suitable for nucleic acid amplification. In some embodiments, methods for nucleic acid amplification include subjecting the nucleic acid to be amplified to partially denaturing conditions. In some embodiments, methods for nucleic acid amplification include amplifying without fully denaturing the nucleic acid that is amplified. In some embodiments, the methods for nucleic acid amplification employ an enzyme that catalyzes homologous recombination and a polymerase. In some embodiments, methods for nucleic acid amplification can be conducted in a single reaction vessel. In some embodiments, methods for nucleic acid amplification can be conducted in a single continuous liquid phase of a reaction mixture, without need for compartmentalization of the reaction mixture or immobilization of reaction components. In some embodiments, methods for nucleic acid amplification comprise a amplifying at least one polynucleotide onto a surface under isothermal amplification conditions, optionally in the presence of a polymer. The polymer can include a sieving agent and/or a diffusion-reducing agent.

    Abstract translation: 在一些实施方案中,本教导提供核酸扩增方法,包括形成反应混合物,并使反应混合物经受适合于核酸扩增的条件。 在一些实施方案中,用于核酸扩增的方法包括将待扩增的核酸进行部分变性的条件。 在一些实施方案中,用于核酸扩增的方法包括扩增而不完全变性扩增的核酸。 在一些实施方案中,用于核酸扩增的方法使用催化同源重组的酶和聚合酶。 在一些实施方案中,用于核酸扩增的方法可以在单个反应容器中进行。 在一些实施方案中,用于核酸扩增的方法可以在反应混合物的单个连续液相中进行,而不需要分隔反应混合物或固定反应组分。 在一些实施方案中,用于核酸扩增的方法包括在等温扩增条件下任选地在聚合物存在下在表面上扩增至少一种多核苷酸。 聚合物可以包括筛分剂和/或扩散还原剂。

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