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| - Elastic Bounded Diffusion and Electron Propagation: Dynamics ofthe Wiring of a Self-Assembly of Immunoglobulins BearingTerminally Attached Ferrocene Poly(ethylene glycol) ChainsAccording to a Spatially Controlled Organization
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| - Molecular monolayers of immunoglobulins bearing terminally attached ferrocene poly(ethylene glycol)chains (IgG−PEG−Fc) were self-assembled at an electrode surface in a step-by-step manner involving antigen−antibody recognition reactions. The total number N of assembled IgG−PEG−Fc monolayers and the numberof spacers ni separating two successive IgG−PEG−Fc monolayers were controlled and varied. Electron transportthrough the protein assembly involves the dynamics of the terminally attached PEG chains and isotopic electronexchange between ferrocene heads belonging to successive IgG−PEG−Fc monolayers. The model of elasticbounded diffusion enabled us to analyze quantitatively the dependence of the rate of electron transport on N,ni, and the rate constant (ke) of isotopic electron exchange. Wiring of a molecular monolayer of redox enzymeis also quantitatively characterized.
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