Utilization of Inexpensive Carbon-Based Substrates as Platforms for Sensing.
Utilization of Inexpensive Carbon-Based Substrates as Platforms for Sensing.
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DOI：
10.3390/s18082444
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发表时间：
2018-07-27
期刊：
影响因子：
--
通讯作者：
Padalkar S
中科院分区：
文献类型：
--
作者：
Tran M;Fallatah A;Whale A;Padalkar S
金(Au)具有等离子体性质、稳定性和生物相容性，被广泛用作表面增强拉曼光谱(SERS)材料。传统上，对于SERS应用，Au被沉积在诸如玻璃或硅的刚性衬底上。刚性的底物严重限制了分析物的收集效率和便携性。在这里，研究了碳布和碳纸等柔性衬底作为SERS应用的潜在衬底。通过电沉积的方法在柔性衬底上涂覆了Au纳米结构。模型分析物罗丹明6G被用来演示柔性SERS底物的性能。此外，在柔性SERS底物以及苹果果实等实际样品上也检测到了农药对氧磷。
Gold (Au) has been widely used as a material for Surface Enhanced Raman Spectroscopy (SERS) due to its plasmonic properties, stability and biocompatibility. Conventionally for SERS application, Au is deposited on a rigid substrate such as glass or silicon. The rigid substrates severely limit analyte collection efficiency as well as portability. Here, flexible substrates like carbon cloth and carbon paper were investigated as potential substrate candidates for SERS application. The flexible substrates were coated with Au nanostructures by electrodeposition. Model analyte, Rhodamine 6G was utilized to demonstrate the capabilities of the flexible SERS substrates. Additionally, the pesticide paraoxon was also detected on the flexible SERS substrates as well as on a real sample like the apple fruit.
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