Detail of "2906-60-7"

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Phenylboronic acid monolayer-modified electrodes sensitive to ribonucleosides

All Rights Reserved. Phenylboronic acid monolayer-modified electrodes sensitive to ribonucleosides. Kazunori, Ishizuka; Takahashi, Shigehiro; Anzai, Jun-ichi (Grad. Sch. Pharmaceutical Sci. 2906-60-7 and 65-46-3 are cas registry numbers. These chemicals are also mentioned in this article., Tohoku Univ., Aramaki, Aoba-ku, Sendai 980-8578, Japan). Electrochemistry (Tokyo, Japan), 74(8), 688-690 (English) 2006 Electrochemical Society of Japan. CODEN: EECTFA. ISSN: 1344-3542. DOCUMENT TYPE: Journal CA Section: 72 (Electrochemistry) Section cross-reference(s): 34, 80 The surface of a Au disk electrode was modified with a self-assembled monolayer consisting of phenylboronic acid residue to prep. a ribonucleoside-sensitive electrode. The cyclic voltammetric response of the modified electrode to [Fe(CN)6]3- ion dissolved in the sample soln. is dependent of the type of ribonucleoside and its concn. The peak current in the cyclic voltammogram of [Fe(CN)6]3- ion was significantly decreased when uridine or cytidine was added in the working buffer, while the response to thymidine, 2'-deoxyuridine, and 2'-deoxycytidine was rather small. The voltammetric response was rationalized from the electrostatic repulsion between [Fe(CN)6]3- ion and the neg.-charged electrode surface, which originates from the addn. of OH- ion on the electrode as a result of the formation of phenylboronic acid-ribonucleoside conjugate on the surface of the monolayer. .