The development of flexible and robust plasmonic substrates has become a hot research topic in simplifying and extending the application of surface-enhanced Raman scattering (SERS) technique for real-world analysis. In this work, a facile method to fabricate an Au@Ag nanoparticle array sandwiched between the adhesive acrylic polymer tape and polyethene terephthalate (PET) film (T/Au@Ag/PET) as a high-performance SERS chip was reported for nondestructive detection of thiram on fruit peels. For this SERS chip, the ordered Au@Ag nanoparticle array formed by the self-assembly method was closely-packed, which generated high‐density sub‐3‐nm gaps and could produce high reproducible and sensitive SERS enhancement effects. The measurement of crystal violet with the limit of detection of 7.24 × 10⁻¹⁰ M was realized by targeting Raman shift at 1177 cm⁻¹. Moreover, the excellent flexible feature of acrylic polymer tape enabled the substrate to withstand a tensile strain value of 20% for three cycles without significantly losing its SERS activity. By covering with a PET film, the SERS chip could maintain 87% SERS activity after storage for 60 days in the air environment, and could well withstand the influence of harsh conditions such as high temperature and ultrasound treatments. As a proof of the concept, the SERS tape was directly used to detect thiram on apple, tomato, and cucumber peels via a simple sampling-and-detection procedure, and the detection limit of 5 ng/cm² was achieved. The T/Au@Ag/PET SERS chip should hold a promising candidate for food safety analysis in the future.

在简化和扩展表面增强拉曼散射（SERS）技术在现实世界分析中的应用时，柔性且坚固的等离激元基体的开发已成为研究的热点。在这项工作中，报告了一种简便的方法来制造夹在丙烯酸丙烯酸聚合物胶带和聚对苯二甲酸乙二酯（PET）膜（T / Au @ Ag / PET）之间的Au @ Ag纳米颗粒阵列，作为高性能SERS芯片，用于无损检测。锡拉姆在果皮上。对于此SERS芯片，通过自组装方法形成的有序Au @ Ag纳米颗粒阵列紧密堆积，产生了3纳米以下的高密度间隙，并可以产生高再现性和灵敏的SERS增强效果。结晶紫的检测极限为7.24×10 ^-10m为在1177厘米靶向拉曼位移实现^-1。此外，丙烯酸聚合物胶带的出色柔韧性使基材在三个循环中可承受20％的拉伸应变值，而不会明显丧失其SERS活性。通过用PET膜覆盖，SERS芯片在空气中存储60天后可以保持87％的SERS活性，并且可以很好地承受恶劣条件的影响，例如高温和超声处理。作为此概念的证明，SERS磁带可通过简单的采样和检测程序直接用于检测苹果，番茄和黄瓜皮上的提拉姆，检测极限为5 ng / cm ^2。已实现。T / Au @ Ag / PET SERS芯片将在将来成为食品安全分析的有希望的候选者。