Gao Qian, Zhao Aiwu, Chen Xucheng, Guo Hongyan, Li Zhenxin, Li Lei, Sun Henghui, Wang Dapeng
J Nanosci Nanotechnol. 2017 Jan;17(1):690-95. doi: 10.1166/jnn.2017.12544.
The homogeneous surface-enhanced Raman scattering (SERS) active hot spots on a SERS substrate is the most crucial factor in ensuring their application as reproducible and ultrasensitive sensing platforms. In this paper, we report on a simply shaking-assisted liquid–liquid (water-chloroform) interfacial assembly process for fabricating aligned Ag nanowire (AgNW) bilayer films on solid substrates. A scalable fabrication process can be easily realized by using a large size of container. These AgNW bilayer films can be used as ideal SERS active substrates for chemical and biomolecular detection with highly sensitivity and excellent reproducibility. Significantly, sensitive and quantitative detection of carbaryl with a detection limit of 0.1 ppm using these SERS substrates to demonstrate potential applications for environmental pollutant analysis.
表面增强拉曼散射（SERS）基底上的均匀SERS活性热点是确保其作为可重现且超灵敏传感平台应用的最关键因素。在本文中，我们报道了一种简单的振荡辅助液-液（水-氯仿）界面组装工艺，用于在固体基底上制备排列整齐的银纳米线（AgNW）双层膜。通过使用大尺寸容器可以轻松实现可扩展的制造工艺。这些AgNW双层膜可作为理想的SERS活性基底，用于化学和生物分子检测，具有高灵敏度和出色的重现性。值得注意的是，使用这些SERS基底对西维因进行了灵敏且定量的检测，检测限为0.1 ppm，以证明其在环境污染物分析中的潜在应用。
