当前位置: X-MOL 学术ACS Omega › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Hybrid Gold Nanoparticle–Polyoxovanadate Matrices: A Novel Surface Enhanced Raman/Surface Enhanced Infrared Spectroscopy Substrate
ACS Omega ( IF 4.1 ) Pub Date : 2020-09-23 , DOI: 10.1021/acsomega.0c01605
Stefan Repp 1, 2 , Ángela I. Lopez-Lorente 3 , Boris Mizaikoff 1 , Carsten Streb 2
Affiliation  

Bare gold nanoparticles were embedded into an iron-polyoxovanadate matrix and used to enhance both the infrared and Raman signatures of a model analyte. A detailed characterization of the matrix-embedded nanoparticles revealed that they retained a plasmon resonance at 564 nm. The enhancement of vibrational signatures of the model analyte crystal violet using bare and embedded gold nanoparticles was compared for both surface enhanced infrared (SEIRA) spectroscopy and surface enhanced Raman spectroscopy (SERS) yielding enhancement factors of 2.2 for SEIRA and 77 for SERS. In contrast, the bare gold nanoparticles revealed significantly lower enhancements (1.6 for SEIRA; 20 for SERS). Hence, it was shown that embedding nanoparticles within an inorganic polyoxometalate-based matrix is an innovative strategy to amplify their signal enhancement properties in vibrational spectroscopies.

中文翻译:

杂化金纳米颗粒-多钒酸盐基质:一种新型的表面增强拉曼/表面增强红外光谱基质

裸露的金纳米粒子被嵌入铁-聚氧钒酸铁基质中,并用于增强模型分析物的红外和拉曼信号。嵌入基质的纳米颗粒的详细表征显示它们保留了564 nm的等离子体共振。对于表面增强红外(SEIRA)光谱和表面增强拉曼光谱(SERS),比较了使用裸露和嵌入的金纳米粒子对模型分析物晶体紫的振动特征的增强,得出SEIRA的增强因子为2.2,SERS的增强因子为77。相比之下,裸露的金纳米颗粒显示出明显较低的增强作用(SEIRA为1.6; SERS为20)。因此,
更新日期:2020-10-06
down
wechat
bug