JOURNAL ARTICLE

金纳米阵列薄膜的制备及在表面增强拉曼光谱中的应用

Abstract

表面增强拉曼光谱(SERS)是一种灵敏度很高的分析技术,可以给出分子水平的光谱信息,常被用于痕量分析检测。金纳米颗粒(AuNPs)由于其可控制备、独特的光学特性,是最常用的SERS基底材料之一。然而,如何经济、高效地制备出一种性质稳定、耐保存的拉曼基底材料,仍是亟待解决的问题。文中通过静电纺丝工艺,将修饰了β-环糊精的AuNPs聚合液制备成静电纺丝薄膜;将此薄膜用作SERS基底材料,以罗丹明6G作为探针分子,获得了优异的SERS效果,增强因子约为10~5,检测限达到10~(-6)级以下,且基底材料的重复性优越。

Keywords:
Process (computing) Identification (biology) Product (mathematics)

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Topics

Surface Roughness and Optical Measurements
Physical Sciences →  Engineering →  Computational Mechanics
Biosensors and Analytical Detection
Physical Sciences →  Engineering →  Biomedical Engineering
Gold and Silver Nanoparticles Synthesis and Applications
Physical Sciences →  Materials Science →  Electronic, Optical and Magnetic Materials

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