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首页> 外文期刊>Nanotechnology >The preparation of silver nanoparticle decorated silica nanowires on fused quartz as reusable versatile nanostructured surface-enhanced Raman scattering substrates
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The preparation of silver nanoparticle decorated silica nanowires on fused quartz as reusable versatile nanostructured surface-enhanced Raman scattering substrates

机译：在熔融石英上制备银纳米粒子修饰的二氧化硅纳米线，作为可重复使用的多功能纳米结构表面增强拉曼散射基板

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摘要

We introduce a platform, comprised of silver nanoparticle decorated silica nanowires (SiONWs) dispersed on fused quartz substrates, for high sensitivity surface-enhanced Raman scattering (SERS) measurements using both frontal (through the analytes) and back-face (through the transparent substrate) excitation. Quasi-quantitative SERS performances on the specialized substrate, vis-a-vis a silver deposited bare fused quartz plate, showed: (i) the suitability of the Ag modified SiONW substrate for frontal as well as back-face excitation; (ii) a wider detection range with high sensitivity to Rhodamine 6G; and (iii) good underwater metal-oxide adhesion of the specialized substrates. Capable of surviving ultrasonic cleaning, the substrate introduced is one of the few reusable low-cost Ag-based nanostructured SERS substrates, requiring only a simple silver reload process (the silver mirror reaction).
机译：我们引入了一个平台，该平台由分散在熔融石英基板上的由银纳米粒子装饰的二氧化硅纳米线（SiONWs）组成，可使用正面（通过分析物）和背面（通过透明基板）进行高灵敏度的表面增强拉曼散射（SERS）测量）激发。相对于银沉积的裸熔石英板，在专用基底上的准定量SERS性能表明：（i）Ag改性的SiONW基底适合正面和背面激发; （ii）对罗丹明6G的灵敏度更高的检测范围更广; （iii）特殊基材的水下金属氧化物粘附性好。能够经受超声波清洗，引入的基板是为数不多的可重复使用的低成本基于银的纳米结构SERS基板之一，仅需要简单的银重新加载过程（银镜反应）。

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