利用透明胶带和涂覆银纳米棒的表面增强拉曼散射检测农药残留。
Surface-Enhanced Raman Scattering Detection of Pesticide Residues Using Transparent Adhesive Tapes and Coated Silver Nanorods.
机构信息
Institute of Materials , China Academy of Engineering Physics , P.O. Box 9-11, Huafengxincun, Jiangyou , Sichuan 621908 , P. R. China.
Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering , Tsinghua University , Beijing 100084 , P. R. China.
出版信息
ACS Appl Mater Interfaces. 2018 Mar 14;10(10):9129-9135. doi: 10.1021/acsami.7b18039. Epub 2018 Mar 5.
The efficient extraction of analytes from complex and severe environments is significant for promoting the surface-enhanced Raman scattering (SERS) technique to actual applications. In this paper, a proof-of-concept strategy is proposed for the rapid detection of pesticide residues by utilizing the flexible, transparent, and adhesive properties of commercial tapes and SERS performance of AlO-coated silver nanorod (AgNR@AlO) arrays. The function of tapes is to rapidly transfer the analytes from the actual surface to the SERS substrate. The novel "tape-wrapped SERS (T-SERS)" approach was constructed by a simple "paste, peel off, and paste again" procedure. The easily obtained but clearly distinguished SERS signals allow us to quickly determine the constituents of complex surfaces, such as tetramethylthiuram disulfide and thiabendazole pesticides from fruits and vegetables, which may be practically applied to food safety, environmental monitoring, and industrial production process controlling.
从复杂和恶劣的环境中高效提取分析物对于推动表面增强拉曼散射（SERS）技术实际应用具有重要意义。本文提出了一种利用商业胶带的柔韧性、透明性和粘性以及 AlO 涂层银纳米棒（AgNR@AlO）阵列的 SERS 性能来快速检测农药残留的概念验证策略。胶带的作用是将分析物从实际表面快速转移到 SERS 基底上。通过简单的“粘贴、剥离和再次粘贴”过程构建了新颖的“胶带包裹 SERS（T-SERS）”方法。通过这种方法可以很容易地获得明显的 SERS 信号，使我们能够快速确定复杂表面的成分，例如水果和蔬菜中的四甲基秋兰姆二硫化物和噻菌灵等农药，这可能在食品安全、环境监测和工业生产过程控制中得到实际应用。
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