Concave gold nanoparticles on aluminum as surface enhanced Raman spectroscopy substrate for detection of thiram

IF 3.1 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
M. Martínez-García, J. Pichardo-Molina, N. Arzate-Plata, J. J. Alvarado-Gil
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引用次数: 0

Abstract

We report a simple preparation of surface enhanced Raman spectroscopy (SERS) substrates with gold concave nanocubes of different sizes, deposited onto aluminum slides. The SERS substrates were characterized using 4-Aminothiophenol. Resulting in that the substrate prepared with 55 nm nanocubes exhibits the higher analytical enhancement factor (AEF), 1.5 × 106. Moreover, the SERS substrates’ performance was also evaluated for thiram detection using a series of water and tomato juice samples spiked with the pesticide. Our results show that the excellent performance of the substrate allows the detection of thiram with high sensitivity. The substrates were able to detect thiram with a limit of detection of 7 ppm and 14 ppm, respectively, in water and tomato juice. Our preliminary results open the possibility of using our methodology to detect diverse pollutants of interest.
铝表面凹形金纳米粒子作为表面增强拉曼光谱基体检测硫仑
我们报道了一种简单的表面增强拉曼光谱(SERS)基底的制备方法,该基底具有不同尺寸的金凹纳米立方体,沉积在铝载玻片上。使用4-氨基硫代苯酚对SERS底物进行了表征。结果表明,用55nm纳米立方体制备的衬底显示出更高的分析增强因子(AEF),为1.5×106。此外,还使用掺有杀虫剂的一系列水和番茄汁样品对SERS底物的性能进行了评估,用于检测thiram。我们的结果表明,该基质的优异性能允许以高灵敏度检测thiram。底物能够在水和番茄汁中分别检测到7 ppm和14 ppm的thiram。我们的初步结果为使用我们的方法检测各种感兴趣的污染物开辟了可能性。
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来源期刊
Nanomaterials and Nanotechnology
Nanomaterials and Nanotechnology NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
7.20
自引率
21.60%
发文量
13
审稿时长
15 weeks
期刊介绍: Nanomaterials and Nanotechnology is a JCR ranked, peer-reviewed open access journal addressed to a cross-disciplinary readership including scientists, researchers and professionals in both academia and industry with an interest in nanoscience and nanotechnology. The scope comprises (but is not limited to) the fundamental aspects and applications of nanoscience and nanotechnology
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