Few Layer Ti₃C₂ MXene-Based Label-Free Aptasensor for Ultrasensitive Determination of Chloramphenicol in Milk.

ABSTRACT: Quantitative detection of veterinary drug residues in animal-derived food is of great significance. In this work, a simple and label-free electrochemical aptasensor for the highly sensitive detection of chloramphenicol (CAP) in milk was successfully developed based on a new biosensing method, where the single- or few-layer Ti₃C₂ MXene nanosheets functionalized via the specific aptamer by self-assembly were used as electrode modifiers for a glassy carbon electrode (aptamer/Ti₃C₂ MXene/GCE). Differential pulse voltammetry (DPV), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), scanning electron microscopy (SEM), atomic force microscope (AFM), and so on were utilized for electrochemical and morphological characterization. Under

SUBMITTER: Li F 

PROVIDER: S-EPMC10459553 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature