Simple, effective, and rapid detection of chemically relevant hazards is a highly desirable research goal, which can provide early-warning information to improve the patient-care outcomes for public health. Here, we introduce a microdroplet-captured tape toward rapid SERS screening of food contaminants. The dominant sensing unit lies on functionalized microwell in conductive carbon tapes, which is simply prepared by physical punching, magnetron sputtering and electrochemical deposition of Au nanodendrites. The tape-based sensors not only possess highly branched Au nanodendrites in microwell for promoting SERS activity, but also enable anchoring the microdroplets via direct dip-pulling from pristine analytes solutions upon sticky incorporated on a glove. Early-warning SERS detection of food contaminants including Sudan-1, thiram, and thiabendazole from the real samples can be achieved by such simple sampling method. These tape-based sensors with a facile operation module and accessible signal read-out represent an innovative point-of-care testing (POCT) device for forensic, military, consumer protection, environmental monitoring, and food safety applications.

中文翻译：

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捕获微滴的胶带，用于食品污染物的快速采样和SERS检测。

简单，有效和快速地检测与化学有关的危害是一项非常可取的研究目标，它可以提供预警信息，以改善公共卫生的患者护理结果。在这里，我们介绍了一种捕获微滴的胶带，用于快速SERS筛分食品污染物。占主导地位的传感单元位于导电碳带中的功能化微孔上，该孔可以通过物理冲压，磁控溅射和Au纳米枝晶的电化学沉积简单地制备。基于带的传感器不仅在微孔中具有高度分支的Au纳米树枝状晶体，以促进SERS活性，而且还可以通过粘在手套上的原始分析物溶液的直接浸入拉动来锚定微滴。早期SERS检测食品污染物，包括Sudan-1，thiram，通过这种简单的采样方法可以从真实样品中获得噻菌灵。这些基于磁带的传感器具有便捷的操作模块和可访问的信号读数，代表了一种创新的即时检验（POCT）设备，适用于法医，军事，消费者保护，环境监测和食品安全应用。