Methods and apparatus for quantification of nucleic acid amplification by monitoring impedances
申请人:Aydemir Nihan
公开号:US10167501B2
公开(公告)日:2019-01-01
The present invention relates to methods and apparatuses for amplifying, detecting, and optionally quantifying, nucleic acids. In one aspect the method comprises (a) providing a reaction volume comprising (i) a first electrode comprising an electrochemically-active conducting polymer, a first single-stranded nucleic acid molecule capable of hybridizing to a target nucleic acid, wherein the first nucleic acid molecule is covalently attached to the electrochemically-active conducting polymer, and (ii) a second electrode, (b) providing a reaction mixture to the reaction volume, the reaction mixture comprising a target nucleic acid, a nucleic acid polymerase, a redox couple, and nucleic acid amplification reagents, (c) amplifying the nucleic acid, and (d) measuring the impedance of the first electrode at least once during the nucleic acid amplification reaction.
本发明涉及用于扩增、检测和可选量化核酸的方法和装置。在一个方面,该方法包括:(a) 提供一个反应容积,该反应容积包括(i) 第一电极,该第一电极包含电化学活性导电聚合物、能够与目标核酸杂交的第一单链核酸分子,其中第一核酸分子共价连接到电化学活性导电聚合物上;(ii) 第二电极;(b) 向反应容积提供反应混合物,该反应混合物能够与目标核酸杂交,其中第一核酸分子共价连接到电化学活性导电聚合物上、和 (ii) 第二电极,(b) 向反应容积提供反应混合物,反应混合物包括目标核酸、核酸聚合酶、氧化还原偶联剂和核酸扩增试剂,(c) 扩增核酸,和 (d) 在核酸扩增反应期间至少测量一次第一电极的阻抗。