Attomolar quantitation of Mycobacterium tuberculosis by asymmetric helicase-dependent isothermal DNA-amplification and electrochemical detection.
本文报道了一种高灵敏度且稳健的特异性DNA序列定量方法,将非对称解旋酶依赖DNA扩增(asymmetric helicase-dependent amplification, aHDA)与电化学检测相结合。该方法先将扩增得到的单链DNA捕获到磁性微球上,再进行扩增后杂交,以提高特异性。作为概念验证,作者在65 °C下扩增一段84 b...