pH-dependent rGO/Cu–Cu <sub>2</sub> O electrodes with a porous PVA/PEO film for high-sensitivity non-enzymatic glucose sensing: a COMSOL multiphysics study
Farag M. A. AltalbawyDepartment of Chemistry, University College of Duba, University of Tabuk, Tabuk, Saudi ArabiaQusay Abdulsattar MohammedCollege of Dentistry, University of Al Maarif, Al Anbar, 31001, IraqHuda Kadhim JaafarCollege of Applied Sciences, University of Technology-Baghdad, Baghdad, IraqNormurot FayzullaevDepartment of Polymer Chemistry and Chemical Technology, Samarkand State University, Samarkand, 140101, UzbekistanManoj VoraDepartment of Chemistry, Faculty of Science, Gokul Global University, Sidhpur, Gujarat, IndiaSubbulakshmi GanesanDepartment of Chemistry and Biochemistry, School of Sciences, JAIN (Deemed to be University), Bangalore, Karnataka, IndiaRenu SharmaDepartment of Chemistry, University Institute of Sciences, Chandigarh University, Mohali, Punjab, IndiaGeeta DurgaDepartment of Chemistry and Biochemistry, Sharda School of Engineering & Sciences, Sharda University, Greater Noida, IndiaPallavi SharmaCentre for Research Impact & Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura, Punjab, 140401, IndiaShayan AmiriYoung Researchers and Elite Club, Tehran Branch, Islamic Azad University, Tehran, Iran
ABI
Abstract
dramatically enhance both sensitivity and response speed by improving ion accessibility and electron-transfer efficiency. Model predictions are rigorously validated against experimental electrochemical impedance spectroscopy data (RMSE = 0.08), confirming predictive accuracy. The work elucidates fundamental pH-structure-performance relationships and provides quantitative design guidelines for robust, cost-effective, enzyme-free glucose sensors suitable for diabetes monitoring and wearable diagnostic platforms.
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