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Spectroscopic analysis of l-histidine adsorbed on gold and silver nanoparticle surfaces investigated by surface-enhanced Raman scattering
DC Field | Value | Language |
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dc.contributor.author | Lim, Jong Kuk | - |
dc.contributor.author | Kim, Youngmin | - |
dc.contributor.author | Lee, So Yeong | - |
dc.contributor.author | Joo, Sang-Woo | - |
dc.date.accessioned | 2009-08-24T08:28:39Z | - |
dc.date.available | 2009-08-24T08:28:39Z | - |
dc.date.issued | 2007-05-07 | - |
dc.identifier.citation | Spectrochim. Acta A 69 (2008) 286 | en |
dc.identifier.issn | 1386-1425 | - |
dc.identifier.uri | https://hdl.handle.net/10371/7604 | - |
dc.description.abstract | The adsorption of l-histidine on gold (Au) and silver (Ag) nanoparticle surfaces has been comparatively analyzed by means of surface-enhanced Raman scattering (SERS). The SERS spectra of l-histidine on Ag were found to be quite different from those on Au, indicating dissimilar adsorption structures depending on metal substrates. Most peaks of l-histidine on Ag appeared to be due to coordination via the carboxylate (COO−) group with an imidazole ring of fairly upright geometry, whereas on Au it was assumed to adsorb with a rather flat geometry. A density functional theory (DFT) calculation was performed at the level of B3LYP/LANL2DZ to estimate the energetic stability of the binding of the imidazole ring and the carboxylate group of l-histidine with the Ag and Au atoms, respectively. Based on the DFT calculation, the carboxylate group of l-histidine was predicted to bind more favorably to Ag than to Au, and this was in line with our SERS spectral analysis. | en |
dc.description.sponsorship | This work was supported by Korea Research Foundation Grant (KRF-2006-015-C00196), the Korea Science and Engineering Foundation (KOSEF R01-2006-000-10017-0), the ABRL program of Korean Research Foundation (Grant No. R-14-2002-004-01002-0), and the Seoul R&BD Program. This work was supported by the Soongsil University Research Fund. | en |
dc.language.iso | en | en |
dc.publisher | Elsevier | en |
dc.subject | l-Histidine | en |
dc.subject | Au | en |
dc.subject | Ag | en |
dc.subject | SERS | en |
dc.subject | DFT calculation | en |
dc.title | Spectroscopic analysis of l-histidine adsorbed on gold and silver nanoparticle surfaces investigated by surface-enhanced Raman scattering | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 임종국 | - |
dc.contributor.AlternativeAuthor | 김영민 | - |
dc.contributor.AlternativeAuthor | 이소영 | - |
dc.contributor.AlternativeAuthor | 주상우 | - |
dc.identifier.doi | 10.1016/j.saa.2007.05.007 | - |
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