期刊
JOURNAL OF RAMAN SPECTROSCOPY
卷 42, 期 5, 页码 945-950出版社
WILEY
DOI: 10.1002/jrs.2818
关键词
SERS; gold nanoparticle; beta-cyclodextrin; polycyclic aromatic hydrocarbons; selective detection
类别
资金
- National Natural Science Foundation of China [20773044, 20873050, 20921003, 20973074]
- 111 project [B06009]
- Scientific and Technical Development Project of Jilin Province [20090546]
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan [470, 20043032]
- MEXT
- China Scholarship Council
This paper reports the qualitative analysis and quantitative detection of polycyclic aromatic hydrocarbon (PAH) molecules with per-6-deoxy-(6-thio)-beta-cyclodextrin (CD-SH) modified gold nanoparticles (AuNPs) by surface-enhanced Raman scattering (SERS) spectroscopy. For the selective sensing of PAHs, which are environmental pollutants with very low affinity to metallic surfaces, by SERS, a stable substrate with AuNPs and CD-SH was utilized by supramolecular interaction. Quantitative detection of each PAH was carried out by SERS on inclusion complexes with different concentrations. From the SERS spectra of a mixture of five different PAHs, we could easily distinguish each PAH by its discriminant peaks. In addition, quantitative analysis of one component in a mixture of five PAHs was also investigated. This sensing platform revealed matching relationship between the host and the guest and the host-guest interaction mechanism. The proposed approach for the selective detection of PAHs holds great potential in the detection of environmental organic pollutants. Copyright (C) 2010 John Wiley & Sons, Ltd.
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