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The assembly of natural and synthetic polymers into fibrous nanomaterials has applications ranging from textiles, tissue engineering, photonics, and catalysis. However, rapid manufacturing of these materials is challenging, as the state of the art in nanofiber assembly remains limited by factors such as solution polarity, production rate, applied electric fields, or temperature. Here, the design and development of a rapid nanofiber manufacturing system termed pull spinning is described. Pull spinning is compact and portable, consisting of a high-speed rotating bristle that dips into a polymer or protein reservoir and pulls a droplet from solution into a nanofiber. When multiple layers of nanofibers are collected, they form a nonwoven network whose composition, orientation, and function can be adapted to multiple applications. The capability of pull spinning to function as a rapid, point-of-use fiber manufacturing platform is demonstrated for both muscle tissue engineering and textile design. [ABSTRACT FROM AUTHOR]

Front Cover: Pull spinning is a new nanofiber manufacturing technique that uses a high‐speed rotating bristle to draw anisotropic nanofibers from a polymer solution. The versatile structure and composition of scaffolds formed using pull spinning enables a wide range of applications, including muscle tissue engineering and textile design. This is reported by Leila F. Deravi, Nina R. Sinatra, Christophe O. Chantre, Alexander P. Nesmith, Hongyan Yuan, Sahm K. Deravi, Josue A. Goss, Luke A. MacQueen, Mohammad R. Badrossamy, Grant M. Gonzalez, Michael D. Phillips, Kevin Kit Parker, article number 1600404. [ABSTRACT FROM AUTHOR]