受鸟类羽毛启发，科学家制备出最黑纺织面料

Core Viewpoint - Researchers from Cornell University have developed the darkest known textile fabric inspired by bird feathers, applicable to natural fibers like wool, silk, and cotton [2] Group 1: Material Properties - "Super black" materials are defined as substances with light reflectance below 0.5%, holding significant application value in fields such as camera lenses, solar panels, and astronomical telescopes [2] - The newly developed fabric maintains a stable black color that does not diminish with changes in observation angle, addressing common issues with existing super black materials [2] Group 2: Production Method - The team drew inspiration from the deep black color of the Violet-crowned Hummingbird's feathers, using polydopamine to dye white merino wool knit fabric and employing plasma etching to create nanostructures on the fiber surface [2] - The method is described as simple and easily scalable, allowing for widespread adoption in textile manufacturing [2] Group 3: Mechanism of Light Absorption - The deep black color of the bird's feathers is attributed to a rich concentration of melanin and tightly arranged barb structures, which enable light to be reflected internally and nearly completely absorbed [2] - The experimental approach involved using synthetic melanin as a dye and plasma etching to form spike-like nanofibers, enhancing light absorption through multiple reflections within the fibers [2]