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Imaging of localized enzymatic peroxidase activity over unbiased individual gold nanowires by scanning electrochemical microscopy

Vatsyayan, Preety ; Iffelsberger, Christian ; Mayorga-Martinez, Carmen C. ; Matysik, Frank-Michael



Abstract

Scanning electrochemical microscopy (SECM) in the constant-height mode was used to image individual gold nanowires (AuNWs, 2-3 mu m long and similar to 140 nm diameter). High-resolution negative and positive feedback current images of individual AuNWs immobilized on glass and gold-coated glass slides, respectively, were recorded with a Wollaston-based platinum disk ultramicroelectrode (UME) of ...

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