METHODS AND APPARATUS FOR MEASURING ANALYTES USING LARGE SCALE FET ARRAYS
    21.
    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:US20100197507A1

    公开(公告)日:2010-08-05

    申请号:US12721458

    申请日:2010-03-10

    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。

    Method for identifying a nucleic acid sequence
    24.
    发明授权
    Method for identifying a nucleic acid sequence 失效
    识别核酸序列的方法

    公开(公告)号:US06190868B1

    公开(公告)日:2001-02-20

    申请号:US09381779

    申请日:1999-09-23

    Abstract: The present invention discloses a methodology which is directed to providing positive confirmation that nucleic acids, possessing putatively identified sequence predicted to generate observed GeneCalling™ signals, are actually present within the sample from which the signal was originally derived. The putatively identified nucleic acid fragment within the sample possesses 3′- and 5′-ends with known terminal subsequences, said method comprising; contacting said nucleic acid fragments in said sample in amplifying conditions with (i) a nucleic acid polymerase; (ii) “regular” primer oligonucleotides having sequences comprising hybridizable portions of said known terminal subsequences; and (iii) a “poisoning” oligonucleotide primer, said poisoning primer having a sequence comprising a first subsequence that is a portion of the sequence of one of said known terminal subsequences and a second subsequence that is a hybridizable portion of said putatively unidentified sequence which is adjacent to said one known terminal subsequence, wherein nucleic acids amplified with said poisoning primer are distinguishable upon detection from nucleic acids amplified with said nucleic acids amplified only with said regular primers; separating the products of the contacting step; and the detecting sequence is confirmed if the nucleic acids amplified with said poisoning primer are detected.

    Abstract translation: 本发明公开了一种旨在提供肯定确认的方法,核酸具有预测产生观察到的GeneCalling TM信号的推定鉴定序列实际上存在于最初得到信号的样本内。 样品中推测鉴定的核酸片段具有已知末端子序列的3'-和5'-末端,所述方法包括: 在扩增条件下使所述样品中的所述核酸片段与(i)核酸聚合酶接触; (ii)具有包含所述已知末端子序列的可杂交部分的序列的“规则”引物寡核苷酸; 所述中毒引物具有包含作为所述已知末端子序列之一序列的一部分的第一子序列和作为所述假定未鉴定序列的可杂交部分的第二子序列的序列, 与所述一个已知末端子序列相邻,其中用所述中毒引物扩增的核酸在从用所述常规引物扩增的所述核酸扩增的核酸检测时是可区分的; 分离接触步骤的产物; 如果检测到用所述中毒引物扩增的核酸,则确认检测序列。

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