Recently, there has been increasing concern over the widespread use of the herbicide atrazine which has been reported to have problematic side effects on local ecosystems. This has highlighted the need for rapid and accurate point-of-need assessment tools for analytical determination of herbicides in ground and surface waters. Surface enhanced Raman spectroscopy (SERS) is a sensitive vibrational spectroscopy technique which has recently been employed for the analysis of a variety of analytes in water, ranging from pharmaceuticals to pesticides. In this work, SERS sensors constructed using gold nanorod (AuNR) arrays are optimized and then utilized for the rapid and sensitive detection of atrazine. In this study, the effect of relative humidity on the self-assembly of gold nanorods into arrays was explored, and the SERS performance was assessed using para-aminothiophenol as a SERS probe. Once the SERS performance of the substrates was deemed optimal, the detection of atrazine was highlighted. This work represents the first time that relative humidity has been explored as an optimization strategy for controlled alignment of gold nanorods for SERS analysis of atrazine.

中文翻译：

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用于表面增强拉曼光谱（SERS）检测阿特拉津的金纳米棒阵列的优化

最近，人们越来越关注除草剂r去津的广泛使用，据报道这种除草剂at去津对当地生态系统产生了不良的副作用。这突出了需要快速准确的现场评估工具来分析测定地下水和地表水中的除草剂。表面增强拉曼光谱（SERS）是一种敏感的振动光谱技术，最近已用于分析水中的各种分析物，从药物到农药。在这项工作中，使用金纳米棒（AuNR）阵列构建的SERS传感器经过优化，然后用于快速灵敏地检测阿特拉津。在这项研究中，研究了相对湿度对金纳米棒自组装成阵列的影响，对氨基硫酚作为SERS探针。一旦认为底物的SERS性能最佳，就突出了of去津的检测。这项工作代表了首次将相对湿度作为一种优化策略，用于对阿特拉津进行SERS分析的金纳米棒的可控排列。