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In the natural world, chameleons can change colour to reflect heat and stay cool or transition to a darker colour to absorb heat. Now, researchers from the American Chemical Society have developed a coating inspired by the Namaqua chameleon, which acts as a colour-shifting coating. Fuqiang Wang and colleagues wanted to create a coating that […]
A report by researchers featured in Nano Letters has revealed a new type of lightweight foam could reduce energy costs by more than a third. Made from wood-based cellulose nanocrystals, the material is thermally insulating, can reflect sunlight and emits absorbed heat. The researchers connected the cellulose nanocrystals together with a silane bridge, before freezing and […]