Technical University of Denmark , Department of Micro- and Nano Technology, Kgs. Lyngby, 2800, Denmark.
ACS Sens. 2017 Oct 27;2(10):1400-1404. doi: 10.1021/acssensors.7b00499. Epub 2017 Sep 29.
We present a simple, robust, and automated molecule extraction technique based on a centrifugal microfluidic platform. Fast and facile extraction of a food adulterant (melamine) from a complex sample medium (milk) on a SERS substrate is demonstrated. The unique characteristic of the detection method is the obtained "filter paper/chromatographic" effect which combines centrifugal force and wetting properties of the SERS substrate. The work addresses issues related to SERS-based detection of analytes in complex media, which is important for realizing next generation SERS platforms applicable for a broad variety of real-life applications.
我们提出了一种简单、鲁棒且自动化的基于离心微流控平台的分子提取技术。在 SERS 基底上，从复杂的样品介质（牛奶）中快速简便地提取食品污染物（三聚氰胺）得到了证明。该检测方法的独特特点是获得了“滤纸/色谱”效应，该效应结合了离心力和 SERS 基底的润湿性。这项工作解决了与复杂介质中基于 SERS 的分析物检测相关的问题，这对于实现下一代适用于各种实际应用的 SERS 平台非常重要。
