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首页> 外文期刊>Advanced Optical Materials >Hot-Spot Engineering Through Soft Actuators for Surface-Enhanced Raman Spectroscopy (SERS) Applications
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Hot-Spot Engineering Through Soft Actuators for Surface-Enhanced Raman Spectroscopy (SERS) Applications

机译:用于表面增强拉曼光谱(SERS)应用的软致动器的热点工程

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摘要

Surface-enhanced Raman spectroscopy (SERS) is a powerful analytical tool to detect molecular species at ultralow concentrations. However, considering current approaches, controlling and tuning plasmonic hot-spot formations where the Raman signal enhancements maximize are still challenging due to high process cost, complexity, and inability of large-area fabrication. To address these problems, a strategy is demonstrated based on the controlled folding of polymeric materials, which is a new perspective in the field of SERS. Manipulation of hot-spot formations through controlled polymer folding enables a Raman signal enhancement up to 70 folds for the probe methylene blue molecule. Furthermore, sample collection and analysis have been successfully implemented through the magnetic field control of the platform motion and folding manipulation. The results demonstrate that soft actuator platforms can bring new modalities in sensing applications.
机译:表面增强拉曼光谱(SERS)是一种强大的分析工具,用于检测超级浓度的分子种。 然而,考虑到当前的方法,控制和调谐等离子体热点形成,其中拉曼信号增强最大化由于高的过程成本,复杂性和大面积制造的高度仍然挑战。 为了解决这些问题,基于聚合物材料的受控折叠证明了一种策略,这是SERS领域的一种新的视角。 通过受控聚合物折叠操纵热点形成使拉曼信号增强可用于探针亚甲基蓝色分子的70倍。 此外,通过平台运动和折叠操作的磁场控制成功地实现了样品收集和分析。 结果表明,软执行器平台可以带来传感应用中的新模式。

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