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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >SERS on paper: an extremely low cost technique to measure Raman signal
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SERS on paper: an extremely low cost technique to measure Raman signal

机译:纸上的Sers:测量拉曼信号的极低成本技术

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摘要

Finding a low cost substrate for surface-enhanced Raman spectroscopy (SERS) yielding enhanced, reproducible Raman signal from Raman active samples has been a longstanding goal for researchers for years. Herein, we demonstrate the fabrication of such a SERS substrate from paper. The proposed paper-based SERS substrate was developed by attaching polyvinylpyrrolidone (PVP) capped silver nano-particles (AgNPs) to printing grade paper. The performance of the substrate has been evaluated for paper substrates of various grades (in grams per square meter; GSM). The usability of the developed substrate for detection of two Raman active samples-namely, malachite green (MG) and rhodamine6G (R6G)-is reported. In addition to these samples, the reproducibility of the designed substrate has been evaluated for 1,2-bis(4-pyridyl) ethylene (BPE); a good degree of reproducibility was observed. Finally, applicability of the proposed substrate for reliable detection of Raman signals from two more important samples-namely, glucose and urine-has been successfully demonstrated.
机译:寻找表面增强拉曼光谱(SERS)的低成本基板产生来自拉曼活跃样本的增强的,可再现的拉曼信号是研究人员的长期目标。这里,我们证明了从纸张中制造这种SERS基板。通过将聚乙烯基吡咯烷酮(PVP)封端的银纳米颗粒(AGNP)连接到印刷级纸,开发了所提出的基于纸的SER衬底。已经评估了基板的性能,用于各种等级的纸质基板(以每平方米克; GSM)。显影基材的可用性用于检测两个拉曼活性样品 - 即,孔雀石绿(Mg)和Rhodamine6G(R6G)-is报道。除了这些样品之外,已经评估了设计基质的再现性1,2-双(4-吡啶基)乙烯(BPE);观察到良好的再现性。最后,所提出的基板的适用性用于从两个更重要的样品中可靠地检测拉曼信号 - 即葡萄糖和尿液 - 已经成功地证明。

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