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Title: Scanning probe microscopic imaging of guanine on a highly oriented pyrolytic graphite electrode
Authors: Paquim, A. M. Chiorcea 
Brett, A. M. Oliveira 
Keywords: Guanine; Adsorbtion; Pyrolytic graphite; Atomic force microscopy
Issue Date: 2002
Citation: Bioelectrochemistry. 55:1-2 (2002) 63-65
Abstract: Guanine adsorbed onto a highly oriented pyrolytic graphite electrode was studied by MAC-Mode Atomic Force Microscopy (AFM), and the electrochemical behaviour of the guanine layer was investigated with Electrochemical AFM. Guanine adsorbs spontaneously, without forming a well-packed structure, into nucleation spots, which are stable with time and cover the surface uniformly and almost completely. The process of guanine adsorption and nucleation can be controlled and the effect of altering the exposure time and varying the potential was investigated.
DOI: 10.1016/S1567-5394(01)00168-2
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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