College of Sciences , Northeastern University , Shenyang 110819 , P. R. China.
Chair of Macromolecular Chemistry, School of Science , Technische Universität Dresden , 01069 Dresden , Germany.
ACS Sens. 2020 Feb 28;5(2):303-307. doi: 10.1021/acssensors.9b02270. Epub 2020 Feb 12.
The detection of thiocyanate (SCN) is particularly important in industrial effluents and biological fluids because of the toxic nature of SCN. Herein, a metal-insulator-metal (MIM) resonator for visual detection of SCN is presented based on a poly[(2-(methacryloyloxy)ethyl) trimethylammonium chloride] (PMETAC) brush. The MIM resonator exhibits obvious color change as the concentration of SCN changes, which can be easily distinguished by the naked eyes. In addition, the as-prepared MIM resonator also shows the advantages of good anti-interference, excellent reusability, and fast response rate. Combining the above advantages, the proposed MIM resonator may provide a broad perspective for a wide variety of visible-light applications.
硫氰酸盐（SCN）的检测在工业废水中和生物流体中尤为重要，因为 SCN 具有毒性。本文基于聚[(2-(甲基丙烯酰氧)乙基)三甲基氯化铵]（PMETAC）刷，提出了一种用于 SCN 可视化检测的金属-绝缘体-金属（MIM）谐振器。随着 SCN 浓度的变化，MIM 谐振器表现出明显的颜色变化，肉眼即可轻松分辨。此外，所制备的 MIM 谐振器还具有良好的抗干扰性、优异的可重复使用性和快速的响应速率等优点。结合以上优点，所提出的 MIM 谐振器可能为各种可见光应用提供广阔的前景。
