Abstract: A woven, water-vapor permeable, water-responsive, shape-memory wool fabric that possesses switchable pore size and shape responsive to varying water content absorbed thereby is demonstrated, more particularly, the wool fabric exerts corresponding thermal and water vapor regulations between the wearer and the surroundings with respect to the temperature and humidity changes.

Abstract: A radiative cooling apparatus including a layer of a material. The layer defines an exterior face. The material has a composition such that the layer is configured to reflect, at the exterior face, at least partly of the incoming electromagnetic radiation of at least some wavelengths in the solar spectrum. The layer is further configured to emit thermally-generated electromagnetic emission of at least some mid-infrared wavelengths out from the exterior face. Ceramics provided by embodiments of the invention could produce extra cooling effect without any electricity consumption, creating a prominent benefit to the energy saving of air conditioning systems of buildings.

Abstract: The present invention provides water-responsive, shape-memory natural fiber, yarn, fabric and textile comprising thereof with pore actuating function, and method for preparing the same. Fabric and textile prepared according to the present invention possess switchable pore size and shape responsive to varying water content absorbed thereby, and also exert corresponding thermal and water vapor regulations between the wearer and the surroundings with respect to the temperature and humidity changes.