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Sensitive and specific DNA biomarker detection is critical for accurately diagnosing a broad range of clinical conditions. However, the incorporation of such biosensing structures in integrated microfluidic devices is often complicated by the need for an additional labelling step to be implemented on the device. In this review we focused on presenting recent advances in label-free DNA biosensor technology, with a particular focus on microfluidic integrated devices. The key biosensing approaches miniaturized in flow-cell structures were presented, followed by more sophisticated microfluidic devices and higher integration examples in the literature. The option of full DNA sequencing on microfluidic chips via nanopore technology was highlighted, along with current developments in the commercialization of microfluidic, label-free DNA detection devices.

Original languageEnglish
Article number43
Number of pages20
Issue number4
Publication statusPublished - 1 Dec 2018


  • Biosensor
  • DNA
  • Lab-on-Chip
  • Label-free
  • Microfluidics

ASJC Scopus subject areas

  • Analytical Chemistry
  • Physical and Theoretical Chemistry


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