INTEGRATED SENSOR ARRAYS FOR BIOLOGICAL AND CHEMICAL ANALYSIS
    31.
    发明申请
    INTEGRATED SENSOR ARRAYS FOR BIOLOGICAL AND CHEMICAL ANALYSIS 审中-公开
    用于生物和化学分析的集成传感器阵列

    公开(公告)号:US20150160154A1

    公开(公告)日:2015-06-11

    申请号:US14569372

    申请日:2015-01-21

    Abstract: The invention is directed to apparatus and chips comprising a large scale chemical field effect transistor arrays that include an array of sample-retaining regions capable of retaining a chemical or biological sample from a sample fluid for analysis. In one aspect such transistor arrays have a pitch of 10 μm or less and each sample-retaining region is positioned on at least one chemical field effect transistor which is configured to generate at least one output signal related to a characteristic of a chemical or biological sample in such sample-retaining region. In one embodiment, the characteristic of said chemical or biological sample is a concentration of a charged species and wherein each of said chemical field effect transistors is an ion-sensitive field effect transistor having a floating gate with a dielectric layer on a surface thereof, the dielectric layer contacting said sample fluid and being capable of accumulating charge in proportion to a concentration of the charged species in said sample fluid. In one embodiment such charged species is a hydrogen ion such that the sensors measure changes in pH of the sample fluid in or adjacent to the sample-retaining region thereof. Apparatus and chips of the invention may be adapted for large scale pH-based DNA sequencing and other bioscience and biomedical applications.

    Abstract translation: 本发明涉及包括大规模化学场效应晶体管阵列的装置和芯片,其包括能够保留来自样品流体的化学或生物样品用于分析的样品保持区阵列。 在一个方面,这种晶体管阵列具有10μm或更小的间距,并且每个采样保持区域位于至少一个化学场效应晶体管上,该晶体管被配置为产生与化学或生物样品的特性相关的至少一个输出信号 在这样的样品保留区域中。 在一个实施方案中,所述化学或生物样品的特征是带电物质的浓度,并且其中每个所述化学场效应晶体管是离子敏感场效应晶体管,其具有在其表面上具有介电层的浮置栅极, 电介质层与所述样品流体接触并且能够与所述样品流体中的带电物质的浓度成比例地积累电荷。 在一个实施方案中,这种带电物质是氢离子,使得传感器测量样品流体在其样品保持区域中或其附近的pH值的变化。 本发明的装置和芯片可适用于大规模的基于pH的DNA测序和其他生物科学和生物医学应用。

    CHEMICALLY-SENSITIVE SAMPLE AND HOLD SENSORS
    32.
    发明申请
    CHEMICALLY-SENSITIVE SAMPLE AND HOLD SENSORS 有权
    化学敏感样品和保持传感器

    公开(公告)号:US20130292743A1

    公开(公告)日:2013-11-07

    申请号:US13923282

    申请日:2013-06-20

    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.

    Abstract translation: 与用于分析物测量的非常大规模的FET阵列相关的方法和装置。 可以使用基于提高测量灵敏度和精度的改进的FET像素和阵列设计的传统CMOS处理技术来制造ChemFET(例如,ISFET)阵列,并且同时促进显着小的像素尺寸和致密阵列。 改进的阵列控制技术提供了从大型和密集阵列的快速数据采集。 可以使用这样的阵列来检测各种化学和/或生物过程中各种分析物类型的存在和/或浓度变化。 在一个实例中,chemFET阵列基于监测氢离子浓度(pH),其他分析物浓度变化和/或与DNA合成相关的化学过程相关联的结合事件的变化来促进DNA测序技术。

    CHEMICALLY-SENSITIVE SENSOR ARRAY CALIBRATION CIRCUITRY

    公开(公告)号:US20210109060A1

    公开(公告)日:2021-04-15

    申请号:US17067538

    申请日:2020-10-09

    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.

    Chemical Sensor Array Having Multiple Sensors Per Well
    35.
    发明申请
    Chemical Sensor Array Having Multiple Sensors Per Well 审中-公开
    每孔多个传感器的化学传感器阵列

    公开(公告)号:US20140364320A1

    公开(公告)日:2014-12-11

    申请号:US14293247

    申请日:2014-06-02

    CPC classification number: G01N27/4145 C12Q1/6874 G01N27/414 H01L29/66825

    Abstract: In one embodiment, a device is described. The device includes a material defining a reaction region. The device also includes a plurality of chemically-sensitive field effect transistors have a common floating gate in communication with the reaction region. The device also includes a circuit to obtain respective output signals from the chemically-sensitive field effect transistors indicating an analyte within the reaction region.

    Abstract translation: 在一个实施例中,描述了一种装置。 该装置包括限定反应区域的材料。 该器件还包括多个化学敏感的场效应晶体管,其具有与反应区域连通的公共浮动栅极。 该装置还包括电路,以从化学敏感的场效应晶体管获得指示反应区域内的分析物的相应输出信号。

    SCAFFOLDED NUCLEIC ACID POLYMER PARTICLES AND METHODS OF MAKING AND USING
    36.
    发明申请
    SCAFFOLDED NUCLEIC ACID POLYMER PARTICLES AND METHODS OF MAKING AND USING 审中-公开
    SCAFFEDED核酸聚合物颗粒及其制备和使用方法

    公开(公告)号:US20140128269A1

    公开(公告)日:2014-05-08

    申请号:US14044712

    申请日:2013-10-02

    Abstract: The invention provides particle compositions having applications in nucleic acid analysis. Nucleic acid polymer particles of the invention allow polynucleotides to be attached throughout their volumes for higher loading capacities than those achievable solely with surface attachment. In one aspect, nucleic acid polymer particles of the invention comprise polyacrylamide particles with uniform size distributions having low coefficients of variations, which result in reduced particle-to-particle variation in analytical assays. Such particle compositions are used in various amplification reactions to make amplicon libraries from nucleic acid fragment libraries.

    Abstract translation: 本发明提供了在核酸分析中具有应用的颗粒组合物。 本发明的核酸聚合物颗粒允许多核苷酸在其整个体积中被连接,以便比仅通过表面附着可实现的更高的负载能力。 在一个方面,本发明的核酸聚合物颗粒包含具有低变异系数的具有均匀尺寸分布的聚丙烯酰胺颗粒,这导致分析测定中粒子与粒子变化的减少。 这种颗粒组合物用于各种扩增反应以制备来自核酸片段文库的扩增子文库。

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