Yola Bahar Bankoğlu, Kotan Gül, Akyıldırım Onur, Atar Necip, Yola Mehmet Lütfi
Department of Engineering Basic Sciences, Faculty of Engineering and Natural Sciences, Gaziantep Islam Science and Technology University, Gaziantep, Turkey.
Department of Chemistry and Chemical Processing Technologies, Kars Vocational School, Kafkas University, Kars, Turkey.
Mikrochim Acta. 2024 Apr 2;191(5):230. doi: 10.1007/s00604-024-06320-5.
A novel molecularly imprinted electrochemical sensor is presented based on one-dimensional ultrathin manganese oxide nanowires/two-dimensional molybdenum titanium carbide MXene (MnONWs@MoTiC MXene) for fenitrothion (FEN) determination. After the synthesis of MnONWs@MoTiC MXene ionic nanocomposite was successfully completed with a facile hydrothermal and the pillaring methods, a new type molecular imprinted electrochemical sensor based on MnONWs@MoTiC MXene was constructed with cyclic voltammetry (CV) polymerization including pyrrole monomer and FEN target molecule. After the characterization studies including spectroscopic, electrochemical and microscopic methods, the analytical applications of the prepared sensor were performed. A linearity of 1.0×10-2.0×10 mol L was obtained and the values of the quantification limit (LOQ) and the detection limit (LOD) were 1.0×10 mol L and 3.0×10 mol L, respectively. The studies of selectivity, stability and reproducibility of the constructed sensor based on MnONWs@MoTiC nanocomposite and molecularly imprinting polymer (MIP) were carried out in detail. Finally, the developed sensor was applied to white flour samples with the values close to 100%.
提出了一种基于一维超薄氧化锰纳米线/二维钼钛碳化物MXene（MnONWs@MoTiC MXene）的新型分子印迹电化学传感器，用于杀螟硫磷（FEN）的测定。通过简便的水热法和柱撑法成功合成MnONWs@MoTiC MXene离子纳米复合材料后，采用包括吡咯单体和FEN目标分子的循环伏安法（CV）聚合，构建了一种基于MnONWs@MoTiC MXene的新型分子印迹电化学传感器。在进行包括光谱、电化学和显微镜方法在内的表征研究后，对制备的传感器进行了分析应用。获得了1.0×10 - 2.0×10 mol L的线性范围，定量限（LOQ）和检测限（LOD）分别为1.0×10 mol L和3.0×10 mol L。详细研究了基于MnONWs@MoTiC纳米复合材料和分子印迹聚合物（MIP）构建的传感器的选择性、稳定性和重现性。最后，将开发的传感器应用于白面样品，回收率接近100%。
