Journal
INORGANIC CHEMISTRY
Volume 54, Issue 1, Pages 4-6Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic501941a
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Funding
- ICyTDF [PIFUTP08-161]
- CONACYT [J48781Q, CB2009-128255]
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Copper (Cu)-amyloid beta (A beta) interactions play a role in the etiology of Alzheimers disease. This work presents a spectroscopic and electrochemical study of two physiologically relevant A beta-Cu-II complexes, as a function of pH and relative Cu-A beta(1-16) concentrations. Our results reveal that these coordination modes display distinct redox behaviors and provide experimental evidence for the existence of an intermediate Cu-I species. A mechanism for the redox cycling of these complexes is proposed, providing further insight into the redox relevance of A beta-Cu interactions.
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