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Advances in MXenes-based optical biosensors: A review
Biosensors and Bioelectronics ( IF 10.7 ) Pub Date : 2022-01-13 , DOI: 10.1016/j.bios.2022.113995
Sanjeev K Bhardwaj 1 , Harpreet Singh 2 , Madhu Khatri 2 , Ki-Hyun Kim 3 , Neha Bhardwaj 2
Affiliation  

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.



中文翻译:

基于 MXenes 的光学生物传感器的进展:综述

在过去的十年中,MXenes 作为最新的二维 (2D) 材料之一,已成为材料科学的热点。在认识到它们的独特特征(例如,优异的光学特性、大表面积、优异的亲水性、生物相容性、易于表面功能化和高导电性)后,它们在生物传感应用中的潜力也引起了相当大的关注。凭借 MXene 合成方法的多功能性和适当的蚀刻,MXene 可以轻松地转化为量子点、纳米片和 MXenes 复合材料。因此,在过去十年中,出现了基于 MXenes 的光学生物传感平台,以及由 MXenes 构建的电化学传感器和可穿戴传感器。在此处,我们提出了关于 MXenes 光学特性的广泛观点以及最近关于其生物传感应用的发现,这些发现基于不同的光学转导原理(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化学发光)。此外,还讨论了基于 MXenes 的光学传感技术的未来前景和挑战。

更新日期:2022-01-19
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