Ultrasensitive detection of thrombin using surface plasmon resonance and quartz crystal microbalance sensors by aptamer-based rolling circle amplification and nanoparticle signal enhancement.

نویسندگان

  • Peng He
  • Lijun Liu
  • Wenping Qiao
  • Shusheng Zhang
چکیده

The surface plasmon resonance (SPR) and quartz crystal microbalance (QCM) aptasensors combined with rolling circle amplification and bio-bar-coded AuNP enhancement have been applied to detect the human α-thrombin for the first time. The assay platform exhibited excellent selectivity and sensitivity with detection limit as low as 0.78 aM.

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عنوان ژورنال:
  • Chemical communications

دوره 50 12  شماره 

صفحات  -

تاریخ انتشار 2014