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Related Experiment Video

Updated: May 1, 2026

NiO Nanoflowers for Non-Enzymatic Amperometric Detection of Glucose
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Published on: December 30, 2025

273

Glucose sensor based on copper oxide nanostructures.

Suzan A Khayyat, S G Ansari, Ahmad Umar

    Journal of Nanoscience and Nanotechnology
    |April 17, 2014
    PubMed
    Summary
    This summary is machine-generated.

    Copper oxide (CuO) nanobrick spheres were synthesized for a highly sensitive, non-enzymatic glucose sensor. These nanomaterials act as efficient electron mediators, offering rapid detection of glucose levels.

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    Area of Science:

    • Materials Science
    • Electrochemistry
    • Nanotechnology

    Background:

    • Non-enzymatic glucose sensors offer an alternative to enzyme-based systems, avoiding issues with enzyme stability and cost.
    • Developing efficient and sensitive electrode materials is crucial for advancing non-enzymatic glucose sensing technology.

    Purpose of the Study:

    • To synthesize copper oxide (CuO) spheres composed of nanobricks using a facile hydrothermal method.
    • To investigate the morphological, compositional, and structural properties of the synthesized CuO nanomaterials.
    • To fabricate and evaluate a highly sensitive non-enzymatic glucose sensor utilizing CuO spheres as electron mediators.

    Main Methods:

    • Hydrothermal synthesis of CuO spheres at low temperature (-30°C).
    • Characterization using techniques to determine morphology (spherical shapes, nanobricks), composition, and crystal structure (monoclinic, nanocrystalline).
    • Fabrication of a non-enzymatic glucose sensor with CuO spheres as the active material.

    Main Results:

    • Successfully synthesized CuO spheres with a morphology of finely arranged nanobricks.
    • Confirmed nanocrystalline nature and monoclinic structure of the CuO spheres.
    • The fabricated sensor demonstrated high sensitivity (-164.2523 µA mM⁻¹ cm⁻²), a low detection limit (-39 µM), and a rapid response time (-10.0 s).

    Conclusions:

    • Easily prepared CuO nanomaterials are effective electron mediators for glucose sensing.
    • The developed CuO-based non-enzymatic glucose sensor exhibits excellent performance characteristics.
    • This work highlights the potential of CuO nanostructures in electrochemical sensing applications.