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Nonenzymatic electrochemical lactic acid sensor using CuO nanocomposite

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journal contribution
submitted on 2023-11-05, 06:53 and posted on 2023-11-05, 07:36 authored by M.S. Sajna, John-John Cabibihan, Rayaz A. Malik, Kishor Kumar Sadasivuni, Mithra Geetha, Johaina Khalid Alahmad, Dima Anwar Hijazi, Fatimatulzahraa Alsaedi

The detection of biochemical performance and health parameters using wearable sensors have gained more attention. Lactic acid (LA) sensor was developed using the simple facile method for electrochemical detection in artificial sweat. The non-enzymatic LA sensing characteristics were assessed using cyclic voltammetry and amperometry response with a three-electrode system. The CuO nanoparticles were applied to a glassy carbon electrode (GCE) as a single-step modification using the Nafion matrix. In order to examine the CuO material used to modify the glassy carbon electrode, various analytical methods were used such as Fourier transform infrared spectroscopy (FTIR), ultraviolet–visible spectroscopy (UV–Visible), and X-ray powder diffraction (XRD). The minimum detectable concentration for lactic acid was found to be 0.05 × 103 mol/l. The present investigation provides an excellent pathway for the specific detection of LA biomolecule for medical purposes by a non-enzymatic approach.

Other Information

Published in: Materials Science and Engineering: B
License: http://creativecommons.org/licenses/by/4.0/
See article on publisher's website: https://dx.doi.org/10.1016/j.mseb.2022.116217

Funding

Open Access funding provided by the Qatar National Library

History

Language

  • English

Publisher

Elsevier

Publication Year

  • 2023

License statement

This Item is licensed under the Creative Commons Attribution 4.0 International License

Institution affiliated with

  • Qatar University
  • Center for Advanced Materials - QU
  • College of Engineering - QU
  • Weill Cornell Medicine - Qatar

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