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Sensors

Breakthrough in Non-Enzymatic Glucose Sensing: Researchers Develop Cost-Effective, Point-of-Care Sensor

Strategic Insights

— 1 min read

Researchers from Old Dominion University have made a significant contribution to the field of diabetes management by developing a non-enzymatic electrochemical glucose sensor based on laser-induced graphene (LIG), functionalized with zinc oxide (ZnO) and palladium (Pd) nanostructures. The sensor exhibits a wide dynamic range, capturing hypo- and hyperglycemia conditions, and showcases selective response towards glucose in the presence of common interferents. This breakthrough has the potential to revolutionize glucose monitoring systems for clinical and point-of-care applications.

Key Takeaways:

  • The researchers developed a non-enzymatic electrochemical glucose sensor based on LIG, functionalized with ZnO and Pd nanostructures.
  • The sensor exhibited a wide dynamic range of 2-10 mM and 10-24 mM, with a limit of detection of 130 mM.
  • The sensor demonstrated a sensitivity of 25.63 A·mM[superscript]-1·cm[superscript]-2 and showed selective response towards glucose in the presence of common interferents.
  • The findings highlight the potential of the LIG/ZnO/Pd platform for integration into next-generation, non-enzymatic glucose monitoring systems.
  • The research team consisted of Reagan Aviha, Anju Joshi, and Gymama Slaughter from the Center for Bioelectronics at Old Dominion University.
  • The study's results were published in the journal Chemosensors, a publication of MDPI AG.

Statistics:

  • The sensor exhibited a dynamic range of 2-10 mM and 10-24 mM.
  • The sensor had a limit of detection of 130 mM.
  • The sensor showed a sensitivity of 25.63 A·mM[superscript]-1·cm[superscript]-2.
  • The research was conducted by a team of 3 researchers from the Center for Bioelectronics at Old Dominion University.

Sources:

  • "Fabrication of Palladium-Decorated Zinc Oxide Nanostructures for Non-Enzymatic Glucose Sensing" (Chemosensors, 2025, 13(6):201)
  • "Old Dominion University Researchers Have Provided New Data on Nanostructures (Fabrication of Palladium-Decorated Zinc Oxide Nanostructures for Non-Enzymatic Glucose Sensing)" (Life Science Weekly, July 8, 2025; p 3532)

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