School of Chemical Engineering and Materials Science, Chung-Ang University, Dongjak-gu, Seoul 06974, Korea.
Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, Seongbuk-gu, Seoul 02841, Korea.
Sensors (Basel). 2021 Nov 8;21(21):7423. doi: 10.3390/s21217423.
Taste sensors can identify various tastes, including saltiness, bitterness, sweetness, sourness, and umami, and have been useful in the food and beverage industry. Metal-organic frameworks (MOFs) and MXenes have recently received considerable attention for the fabrication of high-performance biosensors owing to their large surface area, high ion transfer ability, adjustable chemical structure. Notably, MOFs with large surface areas, tunable chemical structures, and high stability have been explored in various applications, whereas MXenes with good conductivity, excellent ion-transport characteristics, and ease of modification have exhibited great potential in biochemical sensing. This review first outlines the importance of taste sensors, their operation mechanism, and measuring methods in sensing utilization. Then, recent studies focusing on MOFs and MXenes for the detection of different tastes are discussed. Finally, future directions for biomimetic tongues based on MOFs and MXenes are discussed.
味觉传感器可以识别各种味道，包括咸、苦、甜、酸和鲜味，在食品和饮料行业中很有用。由于具有大的比表面积、高的离子传输能力和可调的化学结构，金属有机框架（MOFs）和 MXenes 最近在高性能生物传感器的制造方面受到了相当大的关注。值得注意的是，具有大的比表面积、可调的化学结构和高稳定性的 MOFs 已经在各种应用中得到了探索，而具有良好导电性、优异的离子传输特性和易于修饰的 MXenes 在生化传感方面表现出了巨大的潜力。本综述首先概述了味觉传感器在味觉检测中的重要性、其工作机制和测量方法。然后，讨论了最近关于 MOFs 和 MXenes 用于检测不同味道的研究。最后，讨论了基于 MOFs 和 MXenes 的仿生舌的未来发展方向。
