According to foreign media reports, materials such as shape memory alloys that can be deformed and restored to their original state as needed will have a significant impact on aerospace, robotics and even the fashion industry. A new intelligent fabric from Harvard University can achieve this. The programmable material, made from recycled wool products, can bend and deform when stimulated and then bounce back to its original shape. < / P > < p > the starting point of this new deformable material is fibrin, which is found in hair, nails and shells, called Keratin, which is also found in wool. Keratin has some useful properties for materials scientists because, as a single chain, it forms a spring like helix called alpha helix. < / P > < p > when enough fibers are put together, a strong large fiber with shape memory properties can be obtained. As the material is stretched, the coil expands and forms new chemical bonds, forming a stable sheet. The material remains in this way until it is exposed to stimulation, at which point the coil returns to its original shape. Kit Parker, senior author of the paper, points out: “through this project, we can not only recycle wool, but also make things out of recycled wool that we never thought of before.” < / P > < p > in the experiment, the team first used 3D printing of keratin sheets of different shapes and placed them in hydrogen peroxide and sodium phosphate solutions, setting them in a “permanent” state. On this basis, materials can be temporarily shaped into other shapes to respond to different stimuli. < / P > < p > in one experiment, the team set the keratin tablet permanently to a complex origami star. When the star sinks into the water, it unfolds and takes on a plastic shape, forming a compact tube that becomes stable and functional as the sheet dries. Then, when it’s put back in the water, it unfolds and folds back into the origami star. < / P > < p > the researchers envisioned some interesting uses for this new deformable material. They say the material could be used to make bras that can be customized in shape and cup size, or clothes that can open vents based on moisture. In this way, they hope to help solve the problem of waste in the fashion industry. < / P > < p > Parker said: “the impact on the sustainability of natural resources is obvious. With regenerative keratin, we can do as much or more as we do with shearing. It will also reduce the environmental impact of the textile and fashion industries. ” Google said the proposed media negotiation rules would put its free services in Australia at “risk”