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Designed amyloid fibers as materials for selective carbon dioxide capture.

ABSTRACT: New materials capable of binding carbon dioxide are essential for addressing climate change. Here, we demonstrate that amyloids, self-assembling protein fibers, are effective for selective carbon dioxide capture. Solid-state NMR proves that amyloid fibers containing alkylamine groups reversibly bind carbon dioxide via carbamate formation. Thermodynamic and kinetic capture-and-release tests show the carbamate formation rate is fast enough to capture carbon dioxide by dynamic separation, undiminished by the presence of water, in both a natural amyloid and designed amyloids having increased carbon dioxide capacity. Heating to 100 °C regenerates the material. These results demonstrate the potential of amyloid fibers for environmental carbon dioxide capture.

SUBMITTER: Li D

PROVIDER: S-EPMC3890842 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature

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Designed amyloid fibers as materials for selective carbon dioxide capture.

Li Dan D Furukawa Hiroyasu H Deng Hexiang H Liu Cong C Yaghi Omar M OM Eisenberg David S DS

Proceedings of the National Academy of Sciences of the United States of America 20131223 1

New materials capable of binding carbon dioxide are essential for addressing climate change. Here, we demonstrate that amyloids, self-assembling protein fibers, are effective for selective carbon dioxide capture. Solid-state NMR proves that amyloid fibers containing alkylamine groups reversibly bind carbon dioxide via carbamate formation. Thermodynamic and kinetic capture-and-release tests show the carbamate formation rate is fast enough to capture carbon dioxide by dynamic separation, undiminis ...[more]

PMID: 24367077

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