Palladium Nanoneedles on Carbon Fiber: Highly Sensitive Peroxide Detection for Biomedical and Wearable Sensor Applications

Aaron McConville, Ashish Mathur, J Davis

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Abstract

The development of a single carbon fiber electrode has been investigated as a potential non-enzymatic sensor capable of quantifying peroxide. Electrodeposition of palladium is shown to create nanostructured deposits with a nanoneedle and nano-rod like morphology. The electrode modification is shown to be facile, and the resulting sensors exhibit a high sensitivity toward the oxidation (388μA · mM-· cm -2 ) and the reduction of peroxide. Interference from uric acid has been investigated, and the use of Nafion shown to greatly reduce its influence without unduly compromising the sensitivity of the sensors toward peroxide.

Original languageEnglish
Article number8478226
Pages (from-to)34-38
Number of pages5
JournalIEEE Sensors
Volume19
Issue number1
Early online date1 Oct 2018
DOIs
Publication statusPublished - 1 Jan 2019

Keywords

  • Carbon Fibre
  • Palladium
  • Sensor
  • Wearable
  • Peroxide
  • uric
  • urine
  • nanoneedle
  • nano-rod
  • electrode
  • palladium
  • sensor
  • Carbon fiber

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