Ultrasonic spray pyrolyzed Cr-doped NiO for non-enzymatic photoelectrochemical dopamine sensing

Key Points

• Non-enzymatic sensing shows improved performance for dopamine detection using Cr-doped NiO.
• Electrochemical performance metrics indicate a significant increase in sensitivity with signal-to-noise ratios.
• Assessment using photoelectrochemical methods reveals effective detection limits for dopamine across varying concentrations.
• Results indicate strong potential for applications in biosensors, supporting the practical utility of this approach.