Designed amyloid fibers as materials for selective carbon dioxide capture

Significance New and improved materials capable of binding carbon dioxide are essential to addressing the global threat of accelerating climate change. The presently used industrial methods for carbon dioxide capture have severe drawbacks, including toxicity and energy inefficiency. Newer porous materials are so far less effective in water, invariably a component of combustion gases. Here, we present a material for carbon dioxide capture. This material, amyloid fibers in powdered form, selectively captures carbon dioxide in the presence of water and binds carbon dioxide strongly until it is released by heating, regenerating the robust amyloid fibers in an energy efficient process.