Karakuş, SelcanÖzbas, FatihBaytemir, GülsenTaşaltın, Nevin2024-07-122024-07-1220230308-81461873-707210.1016/j.foodchem.2023.1359182-s2.0-85150248519https://doi.org/10.1016/j.foodchem.2023.135918https://hdl.handle.net/20.500.12415/6868Ascorbic acid (AA) is a highly water-soluble organic chemical compound and plays a significant role in human metabolism. For the purpose of food quality monitoring, this study focuses on the development of a smartphone-integrated colorimetric and non-enzymatic electrochemical Corylus Colurna (CC) extract-Cu2O nanoparticles (Cu2O NPs) biosensor to detect AA in real food samples. The characterization of the CC-Cu2O NPs was deter-mined using SEM, SEM/EDX, HRTEM, XRD, FTIR, XPS, TGA, and DSC. The CC-Cu2O NPs are cubic in shape with an approximate size of 10 nm. According to electrochemical results, the oxidation of AA at the modified electrode exhibited a LOD of 27.92 nmolL-1 in a wide concentration range of 0.55-22 mmolL-1. The fabricated digital CC-Cu2O NPs sensor successfully detected AA in food samples. This strategy provides a nanoplatform to determine the detection of AA in food samples.eninfo:eu-repo/semantics/closedAccessAscorbic AcidFood QualitySmartphone SensorArticle36940511Q1417WOS:000959521700001N/A