METHODS AND APPARATUS FOR MEASURING ANALYTES USING LARGE SCALE FET ARRAYS
    26.
    发明申请
    METHODS AND APPARATUS FOR MEASURING ANALYTES USING LARGE SCALE FET ARRAYS 有权
    使用大规模FET阵列测量分析仪的方法和装置

    公开(公告)号:US20120247977A1

    公开(公告)日:2012-10-04

    申请号:US13193128

    申请日:2011-07-28

    IPC分类号: G01N27/414 G01N33/50

    摘要: 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 the concentration of inorganic pyrophosphate (PPi), hydrogen ions, and nucleotide triphosphates.

    摘要翻译: 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。 在一个示例中,chemFET阵列基于监测无机焦磷酸盐(PPi),氢离子和核苷酸三磷酸盐的浓度变化来促进DNA测序技术。

    Particle Population and Methods of Making and Using
    27.
    发明申请
    Particle Population and Methods of Making and Using 审中-公开
    粒子群体及其使用方法

    公开(公告)号:US20120094871A1

    公开(公告)日:2012-04-19

    申请号:US13027355

    申请日:2011-02-15

    IPC分类号: C40B40/06

    摘要: 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.

    摘要翻译: 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。