AbstractThe authors describe a three-dimensional (3D) flexible interconnected porous nanocomposite membrane for use in surface-enhanced Raman scattering (SERS). It was obtained via in -situ deposition of gold nanoparticles (AuNPs, ca. 10 nm) on eggshell membranes (ESM). The AuNP/ESM nanocomposites were used as a SERS substrate for detection of the pesticide thiabendazole (TBZ) with prominent Raman bands at 1180, 1280, and 1580 cm−1. The abundant “hot spots” are generated by the closely arranged AuNPs in the 3D geometry of the ESM networks. This makes the SERS substrate highly sensitive because of remarkable signal amplification. The substrates were applied to the rapid detection of TBZ in Oolong tea. The limit of detection for TBZ is 0.1 ppm. Graphical abstractSchematic presentation of a three-dimensional flexible interconnected porous nanocomposite membrane as surface-enhanced Raman scattering (SERS) substrate for detection of thiabendazole (TBZ) in tea.

中文翻译：

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蛋壳膜模板化金纳米粒子作为柔性 SERS 底物用于检测噻菌灵

摘要作者描述了一种用于表面增强拉曼散射 (SERS) 的三维 (3D) 柔性互连多孔纳米复合膜。它是通过在蛋壳膜 (ESM) 上原位沉积金纳米粒子 (AuNPs，约 10 nm) 获得的。AuNP/ESM 纳米复合材料用作 SERS 底物，用于检测农药噻苯达唑 (TBZ)，在 1180、1280 和 1580 cm-1 处具有显着的拉曼谱带。大量的“热点”是由 ESM 网络的 3D 几何结构中紧密排列的 AuNP 产生的。由于显着的信号放大，这使得 SERS 底物高度敏感。将该底物应用于乌龙茶中TBZ的快速检测。TBZ 的检测限为 0.1 ppm。