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A Microfluidic-based Electrochemical Biochip for Label-free DNA Hybridization Analysis
Journal JoVE
Bio-ingénierie
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Journal JoVE Bio-ingénierie
A Microfluidic-based Electrochemical Biochip for Label-free DNA Hybridization Analysis
DOI:

14:53 min

September 10, 2014

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Chapitres

  • 00:05Titre
  • 02:06Microfabrication of the Electrochemical Chip
  • 06:36Fabrication of the PDMS Chip
  • 08:52Assembly and Preparation of the Microfluidic Arrayed Electrochemical Device
  • 10:44DNA Hybridization Analysis
  • 12:14Validating Electrochemical Activity of the Biochip and Detection of Hybridization Events
  • 13:55Conclusion

Summary

Traduction automatique

We present a microfluidic-based electrochemical biochip for DNA hybridization detection. Following ssDNA probe functionalization, the specificity, sensitivity, and detection limit are studied with complementary and non-complementary ssDNA targets. Results illustrate the influence of the DNA hybridization events on the electrochemical system, with a detection limit of 3.8 nM.

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