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Helen Yang, Haijin Zhu, Marco M. R. M. Hendrix, Niek J. H. G. M. Lousberg, Gijsbertus de With, A. Catarina C. Esteves and John H. Xin Temperature-Triggered Collection and Release of Water from Fogs by a Sponge-Like Cotton Fabric Advanced Materials 25

Version of Record online: 9 JAN 2013 | DOI: 10.1002/adma.201204278

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A sponge-like cotton fabric autonomously collects and releases water from fogs triggered by typical day-and-night temperature variations. The reversible switching between absorbing-superhydrophilic/releasing-superhydrophobic states results from structural changes of a temperature-responsive polymer grafted on the very rough fabric-surface. This material and concept presents a breakthrough into simple and versatile solutions for collection, uni-directional flow, and purification of water captured from the atmosphere.

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