National Research Council Canada, Measurement Science and Standards, Ottawa, ON K1A0R6, Canada.
National Research Council Canada, Measurement Science and Standards, Ottawa, ON K1A0R6, Canada.
Spectrochim Acta A Mol Biomol Spectrosc. 2018 May 5;196:222-228. doi: 10.1016/j.saa.2018.01.030. Epub 2018 Jan 12.
Self-assembled multi-layered vertically aligned gold nanorod (AuNR) arrays have been fabricated by a simple preparation process that requires a balance between the particle concentration and the ionic strength of the solvent. An experimentally determined critical AuNR concentration of 2.0nM and 50mM NaCl produces well-ordered vertically aligned hexagonally close-packed AuNR arrays. We demonstrate surface treatment via UV Ozone cleaning of such samples to allow introduction of analyte molecules (benzenethiol and cannabinol) for effective surface enhanced Raman scattering detection. This is the first demonstration of the SERS analysis of cannabinol. This approach demonstrates a cost-effective, high-yield and simple fabrication route to SERS sensors with application in the screening for the cannabinoids.
自组装多层垂直排列的金纳米棒（AuNR）阵列已通过一种简单的制备工艺制备，该工艺需要平衡颗粒浓度和溶剂的离子强度。实验确定的临界 AuNR 浓度为 2.0nM 和 50mM NaCl 可产生有序的垂直排列的六边形密排 AuNR 阵列。我们通过 UV 臭氧清洁对这些样品进行表面处理，以允许引入分析物分子（苯硫醇和大麻醇），从而进行有效的表面增强拉曼散射检测。这是对大麻醇进行 SERS 分析的首次证明。该方法展示了一种具有成本效益，高产率和简单制造路线的 SERS 传感器，可用于筛选大麻素。
