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The data that support the plots of this study may be reasonably requested from the corresponding authors.
Stimuli-responsive films are attracting wide attention in the sensing field due to their ability to respond to temperature, moisture, and pH. However, realizing a low-cost and rapid preparation of structural-color responsive film with self-supported structure still remains a challenge. In this work, a structural-color film is developed simply by filtration of hydrophilic wood-derived nanocellulose on a hydrophobic porous membrane. The resultant film integrates multiple advantages into itself, including being ultrathin, iridescent, transparent, tailorable, flexible, foldable, and able to respond to various environment stimuli by changing color. Benefitting from its intrinsic structures and functions, the film is successfully used as portable testing paper for visual gas detection.
The data that support the plots of this study may be reasonably requested from the corresponding authors.
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