STM study of l-serine adsorption on Cu(0 0 1)

• Published in: Surface science Vol. 600; no. 8; pp. 1670 - 1673
• Main Authors: Iwai, Hidekazu, Emori, Akira, Egawa, Chikashi
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Lausanne Elsevier B.V 15.04.2006; Amsterdam Elsevier Science; New York, NY
• Subjects: Biological molecules – proteins; Chemisorption; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Copper; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Morphology; Physics; Scanning tunneling microscopy; Surface structure; Scanning tunneling microscopy; Chemisorption; Copper; Morphology; Biological molecules – proteins; Surface structure; Transition elements; proteins; Surface structure; Morphology; Scanning tunneling microscopy; Copper; Chemisorption; Biological molecules
• ISSN: 0039-6028; 1879-2758
• DOI: 10.1016/j.susc.2005.11.056

The adsorption of l-serine on Cu(0 0 1) surface at 310 K was studied by scanning tunneling microscope (STM). l-serine molecules on the Cu(0 0 1) initially formed a domain of thick lines with a 2 - 1 2 4 order structure along the [ 1 ¯ 3 0 ] direction on the terraces regardless of the coverage of serine. The thick lines were partly replaced by thin line along the [ 3 ¯ 1 0 ] direction, and completely disappeared in 2 h. It is considered that in these structures hydrogen bonds involved in hydroxymethyl group between adsorbates play some role in addition to intermolecular hydrogen bond between a hydrogen atom of amino group and an oxygen atom of carboxy group for alanine adsorption.