A target-induced three-way G-quadruplex junction for 17β-estradiol monitoring with a naked-eye readout.

نویسندگان

  • Junhua Chen
  • Junlin Wen
  • Guiqin Yang
  • Shungui Zhou
چکیده

A label-free and enzyme-free three-way G-quadruplex junction sensing system for the amplified detection of 17β-estradiol has been constructed by the ingenious coupling of split G-quadruplex DNAzyme with toehold-mediated strand displacement. The biosensor is ultrasensitive, enabling the visual detection of 17β-estradiol concentrations as low as 1 fM without instrumentation.

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عنوان ژورنال:
  • Chemical communications

دوره 51 62  شماره 

صفحات  -

تاریخ انتشار 2015