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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Yang, Sung Ik Cho, Eun-Min Kim, Doseok Singh, Dheeraj K. Ganbold, Erdene-Ochir Choo, Jaebum Kim, Sehun Cho, Kwang-Hwi Joo, Sang-Woo Lee, Cheol Min |
| Description | Country affiliation: South Korea Author Affiliation: Singh DK ( Department of Chemistry, Soongsil University, Seoul 156-743, South Korea.); Ganbold EO ( Department of Chemistry, Soongsil University, Seoul 156-743, South Korea.); Cho EM ( College of Environment and Applied Chemistry, Kyung Hee University, Yongin 446-701, South Korea.); Cho KH ( School of Systems Biomedical Science, Soongsil University, Sangdo-dong, Dongjak-gu, Seoul, South Korea.); Kim D ( Department of Physics, Sogang University, Seoul 121-742, South Korea.); Choo J ( Department of Bionano Engineering, Hanyang University, Sa-1-dong 1271, Ansan 426-791, South Korea.); Kim S ( Molecular-level Interface Research Center and Department of Chemistry, KAIST, Daejeon 305-701, South Korea.); Lee CM ( Institute of Environmental and Industrial Medicine, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, South Korea. Electronic address: spica@hanyang.ac.kr.); Yang SI ( College of Environment and Applied Chemistry, Kyung Hee University, Yongin 446-701, South Korea. Electronic address: siyang@khu.ac.kr.); Joo SW ( Department of Chemistry, Soongsil University, Seoul 156-743, South Korea. Electronic address: sjoo@ssu.ac.kr.) |
| Abstract | We detected a trace amount of the mycotoxin citrinin using surface-enhanced Raman scattering (SERS) on silver nanoparticle (Ag NP) surfaces. The SERS substrate on hydrophobic Teflon films was also introduced to observe the citrinin peaks. A broad band at â ¼1382cm(-1), which was ascribed to the symmetric carboxylate stretching mode, was observed in addition to an antisymmetric carboxylate stretching mode at â ¼1568cm(-1) in the Raman spectra. The spectral feature indicated that citrinin would adsorb on Ag NPs via its carboxylate form. Based on density functional theory (DFT) calculations, vibrational mode analysis was performed to compare the Raman spectra of citrinin. DFT calculations also predicted that a bidentate bridge configuration through O15 and O16 atoms in citrinin would be the most stable on three Ag atoms. After treating with Ag NPs, observation of citrinin peaks was attempted in fungal cells of Penicillium citrinum. This work may provide useful insights into the direct observation of the hazardous citrinin mycotoxin using SERS by understanding its adsorption behaviors on Ag surfaces. |
| ISSN | 03043894 |
| Volume Number | 265 |
| e-ISSN | 18733336 |
| Journal | Journal of Hazardous Materials |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-01-30 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Citrinin Analysis Metal Nanoparticles Chemistry Silver Adsorption Ultrastructure Microscopy, Electron, Transmission Penicillium Spectrum Analysis, Raman Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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