Spectroelectrochemical study of the AMP-Ag+ and ATP-Ag+ complexes using silver mesh electrodes. Issue 10 (30th April 2018)

• Record Type: Journal Article
• Authors: Fato, Tano Patrice; Zhao, Li-Jun; Essy, Kouadio Fodjo; Li, Da-Wei; Long, Yi-Tao
• Is Part Of: Analyst. Volume 143:Issue 10(2018)
• Page Start: 2342
• Page End: 2348
• Publication Date: 2018-04-30
• Subjects: Chemistry, Analytic -- Periodicals; 543
• DOI: 10.1039/c8an00097b
• Languages: English
• ISSNs: 0003-2654

Abstract

Abstract : In this study, electrochemical reaction mechanism of adenosine monophosphate (AMP) and adenosine triphosphate (ATP) on a silver mesh was investigated in acetate buffer using spectroelectrochemical technique. Abstract : In this study, electrochemical reaction mechanism of adenosine monophosphate (AMP) and adenosine triphosphate (ATP) on a silver mesh was investigated in acetate buffer using spectroelectrochemical technique. The results indicate that AMP (or ATP) can form a complex with silver ion originating from a silver mesh when a positive potential was applied. In these complexes, silver ion coordinates with AMP or ATP via their phosphate group. However, when a negative potential was applied, the formed complex disappeared. The complex reaction is therefore an electrochemically reversible process. Further studies using surface-enhancement Raman spectroscopy (SERS) have shown that AMP (or ATP) has a parallel or perpendicular orientation to the silver mesh surface, which is governed by their different binding sites (adenine ring, ribose, and phosphate groups). Herein, the adenine nucleotide-silver mesh surface complexes have displayed a promising biosensing capacity.