Multilayered polyelectrolyte microcapsules: Interaction with the enzyme cytochrome c oxidase

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Abstract

Cell-sized polyelectrolyte capsules functionalized with a redox-driven proton pump protein were assembled for the first time. The interaction of polyelectrolyte microcapsules, fabricated by electrostatic layer-by-layer assembly, with cytochrome c oxidase molecules was investigated. We found that the cytochrome c oxidase retained its functionality, that the functionalized microcapsules interacting with cytochrome c oxidase were permeable and that the permeability characteristics of the microcapsule shell depend on the shell components. This work provides a significant input towards the fabrication of an integrated device made of biological components and based on specific biomolecular functions and properties.

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Pastorino, L., Dellacasa, E., Noor, M. R., Soulimane, T., Bianchini, P., D’Autilia, F., … Ruggiero, C. (2014). Multilayered polyelectrolyte microcapsules: Interaction with the enzyme cytochrome c oxidase. PLoS ONE, 9(11). https://doi.org/10.1371/journal.pone.0112192

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