期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 12, 期 35, 页码 10429-10433出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cp00071j
关键词
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资金
- EPSRC [EP/H007024/1]
- EU
- German Academic Exchange Service (DAAD)
- Engineering and Physical Sciences Research Council [EP/H007024/1, EP/F059396/1] Funding Source: researchfish
- EPSRC [EP/F059396/1, EP/F035535/1] Funding Source: UKRI
Cucurbit[n]urils (CB[n]) are a family of supramolecular hosts which can provide highly selective recognition based on their size (n). In this work we study their Raman spectroscopic signatures both experimentally and by molecular simulation and find systematic trends providing evidence of ring strain effects with size. Furthermore, we present for the first time their surface- enhanced Raman scattering (SERS) spectra utilizing both nanostructured surface and nanoparticle based approaches. Using SERS we can detect CB[n] at the ppb level and are able to distinguish between them in mixtures. Our study paves the way for utilization of CB[n] in highly sensitive, multiplexed, real time and high throughput molecular recognition assays based on SERS.
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