Abstract

MXene, a novel class of 2-dimensional transition metal carbides has evolved as a promising material for various applications owing to its outstanding characteristics such as hydrophilicity, high electrical conductivity, surface area, and attractive topological structure. MXenes can form dispersion in common solvents and constitute composite with other nanomaterials, which can be utilized as effective transducers for molecular sensing. MXene-modified support materials, thus provide an intriguing platform for immobilization of target molecules onto their surface. The literature reveals that it has been increasingly utilized in the sensing of diverse types of analytes including glucose, pharmaceuticals, metals and dyes, cancer markers, pesticides, neurotransmitters, small valuable molecules, and so on. In this review, we summarize the recent updates in the MXene modified materials for sensing. For the convenience of our audience, we have distributed the analytes into categories and discussed them comprehensively. Not only we present the synthesis approach, electrochemical properties and surface chemistry of MXenes but also discussed briefly the current challenges and an outlook for future research in the related area.

摘要

MXene 是一类新型的二维过渡金属碳化物，由于其亲水性、高导电性、表面积和有吸引力的拓扑结构等突出特性，已发展成为一种用于各种应用的有前途的材料。MXenes可以在普通溶剂中形成分散体，并与其他纳米材料构成复合材料，可作为分子传感的有效传感器。因此，MXene 修饰的支撑材料为将目标分子固定在其表面上提供了一个有趣的平台。文献表明，它已越来越多地用于检测各种类型的分析物，包括葡萄糖、药物、金属和染料、癌症标志物、杀虫剂、神经递质、有价值的小分子等。在本次审查中，我们总结了用于传感的 MXene 改性材料的最新更新。为了方便我们的听众，我们将分析物分类并全面讨论。我们不仅介绍了 MXenes 的合成方法、电化学性质和表面化学，还简要讨论了当前面临的挑战和相关领域未来研究的展望。