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International Journal of Electrochemistry
Volume 2011, Article ID 239637, 6 pages
http://dx.doi.org/10.4061/2011/239637
Research Article

Chiral Recognition of Amino Acids by Magnetoelectrodeposited Cu Film Electrodes

Institute for Materials Research, Tohoku University, Katahira, Aoba-ku, Sendai 980-8577, Japan

Received 24 December 2010; Accepted 30 March 2011

Academic Editor: Carlos F. Zinola

Copyright © 2011 Iwao Mogi and Kazuo Watanabe. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Chiral behavior of magnetoelectrodeposited (MED) Cu film electrodes was investigated for the electrochemical reactions of amino acids. The Cu films were electrodeposited under a magnetic field of 5 T perpendicular to the electrode surface. Such MED Cu films were employed as an electrode, and cyclic voltammograms were measured for the electrochemical reactions of several kinds of amino acids. Chiral behavior was clearly observed as oxidation current difference between the enantiomers of alanine, aspartic acid, and glutamic acid. The MED film electrodes with the thickness of 50~500 nm exhibited such chiral behavior, and their surface morphologies had network structures, which could be induced by the micro-MHD effect.