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[求助]
银或金的纳米粒子组装体相关文献 已有1人参与
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这种材料用于拉曼检测，谁有相关的文献求分享谢谢 @dut_ameng 发自小木虫IOS客户端 |
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可以看看这一篇，发表在Anal. Chem上面，有一定的可靠性。 Zhong LB, Yin J, Zheng YM, Liu Q, Cheng XX, Luo FH: Self-Assembly of Au Nanoparticles on PMMA Template as Flexible, Transparent, and Highly Active SERS Substrates. Anal Chem 2014, 86:6262-6267. Abstract：We report a simple and rapid method for fabricating a surface-enhanced Raman scattering (SERS) substrate, which offers good flexibility, excellent optical transparency, and high SERS activity. Specifically, the SERS substrate (AuNPs/PMMA film) was obtained through self-assembly of gold nanoparticles (AuNPs) on newborn poly(methyl methacrylate) (PMMA) template. The UV-vis spectroscopy analysis and scanning electron microscopy observation revealed that the gold nanoparticles were closely assembled on the flexible and transparent PMMA template. The fabricated AuNPs/PMMA film SERS substrate allowed detection of model molecule, malachite green isothiocyanate, at a concentration as low as 0.1 nM, and exhibited good reproducibility in the SERS measurement. The Raman enhancement factor (EF) of the AuNPs/PMMA film was found to be as high as (2.4 +/- 0.3) x 107. In addition, measure of residual malachite green on fish surface was carried out, and the result indicated that the AuNPs/PMMA film had great potential in the in situ ultrasensitive detection of analyte on irregular objects. |
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