Tags

Type your tag names separated by a space and hit enter

Spectroscopic analysis of L-histidine adsorbed on gold and silver nanoparticle surfaces investigated by surface-enhanced Raman scattering.
Spectrochim Acta A Mol Biomol Spectrosc. 2008 Jan; 69(1):286-9.SA

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.

Authors+Show Affiliations

Department of Chemistry, Soongsil University, Seoul 156-743, Republic of Korea.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17572135

Citation

Lim, Jong Kuk, et al. "Spectroscopic Analysis of L-histidine Adsorbed On Gold and Silver Nanoparticle Surfaces Investigated By Surface-enhanced Raman Scattering." Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, vol. 69, no. 1, 2008, pp. 286-9.
Lim JK, Kim Y, Lee SY, et al. Spectroscopic analysis of L-histidine adsorbed on gold and silver nanoparticle surfaces investigated by surface-enhanced Raman scattering. Spectrochim Acta A Mol Biomol Spectrosc. 2008;69(1):286-9.
Lim, J. K., Kim, Y., Lee, S. Y., & Joo, S. W. (2008). Spectroscopic analysis of L-histidine adsorbed on gold and silver nanoparticle surfaces investigated by surface-enhanced Raman scattering. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, 69(1), 286-9.
Lim JK, et al. Spectroscopic Analysis of L-histidine Adsorbed On Gold and Silver Nanoparticle Surfaces Investigated By Surface-enhanced Raman Scattering. Spectrochim Acta A Mol Biomol Spectrosc. 2008;69(1):286-9. PubMed PMID: 17572135.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Spectroscopic analysis of L-histidine adsorbed on gold and silver nanoparticle surfaces investigated by surface-enhanced Raman scattering. AU - Lim,Jong Kuk, AU - Kim,Youngmin, AU - Lee,So Yeong, AU - Joo,Sang-Woo, Y1 - 2007/05/07/ PY - 2006/10/02/received PY - 2007/03/13/revised PY - 2007/05/02/accepted PY - 2007/6/19/pubmed PY - 2008/4/9/medline PY - 2007/6/19/entrez SP - 286 EP - 9 JF - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy JO - Spectrochim Acta A Mol Biomol Spectrosc VL - 69 IS - 1 N2 - 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. SN - 1386-1425 UR - https://www.unboundmedicine.com/medline/citation/17572135/Spectroscopic_analysis_of_L_histidine_adsorbed_on_gold_and_silver_nanoparticle_surfaces_investigated_by_surface_enhanced_Raman_scattering_ DB - PRIME DP - Unbound Medicine ER -