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Title: Interaction of BSA protein with copper evaluated by electrochemical impedance spectroscopy and quartz crystal microbalance
Authors: Pinto, Edilson M. 
Soares, David M. 
Brett, Christopher M. A. 
Keywords: Electrochemical quartz crystal microbalance; Electrochemical impedance spectroscopy; Bovine serum albumin
Issue Date: 1-Sep-2008
Citation: Electrochimica Acta. In Press, Corrected Proof:
Abstract: The interaction of bovine serum albumin (BSA) protein with copper in phosphate buffer solution has been studied by a combination of electrochemical impedance spectroscopy (EIS) close to the open circuit potential, with simultaneous monitoring by the electrochemical quartz crystal microbalance (EQCM), in order to throw light on BSA adsorption. Copper films were electroplated onto gold quartz crystals and mounted in the EQCM. Experiments were conducted in the presence and absence of dissolved oxygen and of BSA and the results show the influence of O2 on the protein/metal interaction and also show specific interactions between BSA and copper. The good reproducibility obtained in these experiments suggests future application to other systems and which should lead to a better understanding of the use of such types of protein as corrosion inhibitors.
DOI: 10.1016/j.electacta.2008.01.096
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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