Advanced Research Material and Solutions (ARMS), Technology Business Incubator, IISER, Mohali, India.
Department of Biotechnology, University Institute of Engineering Technology (UIET), Panjab University, Chandigarh, India.
Biosens Bioelectron. 2022 Apr 15;202:113995. doi: 10.1016/j.bios.2022.113995. Epub 2022 Jan 13.
Over the last decade MXenes have become a hotspot of materials science as one of the newest 2-dimensional (2D) materials. Upon the recognition of their distinctive features (e.g., superior optical characteristics, large surface area, excellent hydrophilicity, biocompatibility, ease of surface functionalization, and high conductivity), their potential in biosensing applications has also gained considerable attention. With versatility in MXene synthesis methods and suitable etching, MXenes can be easily transformed into quantum dots, nanosheets, and MXenes composites. As such, during the last decade optical biosensing platforms-based on MXenes have emerged along with electrochemical sensors and wearable sensors built from MXenes. Herein, we present a broad perspective on the optical properties of MXenes alongside recent findings on their biosensing applications, which are based on different optical transduction principles (e.g., photoluminescence, colorimetry, surface plasmon resonance, surface-enhanced Raman scattering, and electro chemiluminescence). Furthermore, the future perspective and challenges concerning MXenes-based optical sensing techniques are discussed.
在过去的十年中，MXenes 作为最新的二维（2D）材料之一，成为材料科学的热点。由于其独特的特性（例如，优越的光学特性、大的表面积、出色的亲水性、生物相容性、易于表面功能化和高导电性），它们在生物传感应用中的潜力也引起了相当大的关注。通过 MXenes 合成方法的多功能性和适当的刻蚀，可以将 MXenes 轻松转化为量子点、纳米片和 MXenes 复合材料。因此，在过去的十年中，基于 MXenes 的光学生物传感平台与基于 MXenes 的电化学传感器和可穿戴传感器一起出现。在此，我们全面介绍了 MXenes 的光学性质以及基于不同光学转换原理（例如光致发光、比色法、表面等离子体共振、表面增强拉曼散射和电致化学发光）的生物传感应用的最新发现。此外，还讨论了基于 MXenes 的光学传感技术的未来展望和挑战。
