Disposable DNA Amplification Chips with Integrated Low-Cost Heaters

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Abstract

Fast point-of-use detection of, for example, early-stage zoonoses, e.g., Q-fever, bovine tuberculosis, or the Covid-19 coronavirus, is beneficial for both humans and animal husbandry as it can save lives and livestock. The latter prevents farmers from going bankrupt after a zoonoses outbreak. This paper describes the development of a fabrication process and the proof-of-principle of a disposable DNA amplification chip with an integrated heater. Based on the analysis of the milling process, metal adhesion studies, and COMSOL MultiPhysics heat transfer simulations, the first batch of chips has been fabricated and successful multiple displacement amplification reactions are performed inside these chips. This research is the first step towards the development of an early-stage zoonoses detection device. Tests with real zoonoses and DNA specific amplification reactions still need to be done.
Original languageEnglish
Article number238
Number of pages28
JournalMicromachines
Volume11
Issue number3
DOIs
Publication statusPublished - 25 Feb 2020

Keywords

  • Early-stage disease detection
  • Multiple displacement amplification
  • On-chip DNA amplification
  • Integrated heaters
  • Cyclic olefin copolymer
  • Polymer-based disposable microfluidic chips
  • Zoonoses

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