| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5426511 | Surface Science | 2007 | 5 Pages |
Abstract
The adsorption of the aromatic amino acid, phenylalanine on a TiO2 rutile (1 1 0) single crystal surface has been investigated with photoemission and NEXAFS (near edge X-ray absorption fine structure) spectroscopy. The results indicate initial adsorption via the carboxylate group in a bidentate configuration with the phenyl ring oriented at approximately 25° to the surface normal. The amino group remains as NH2. Subsequent layers of phenylalanine appear to adsorb as neutral molecules with H-bonding between NH2 and CO groups.
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Authors
A.G. Thomas, W.R. Flavell, C.P. Chatwin, A.R. Kumarasinghe, S.M. Rayner, P.F. Kirkham, D. Tsoutsou, T.K. Johal, S. Patel,