University of Georgia Research Foundation, Inc.

Darya Asheghali

Sergiy Minko

Marcus D Lay

Suraj Sharma

Pornnipa Vichchulada

Alexander Tokarev

Nataraja Sekhar Yadavalli

Oleksandr Trotsenko

Huipu Gao

Nanofiber spinning apparatuses and methods for making core-sheath materials using touch spinning are provided. The apparatus includes at least one rotating plate with an aperture through which a core yarn passes and at least one post contacting the rotating plate. A speed control device can be configured to control rotation of the rotating plate, and a dispensing device can be configured to dispense a nanofiber-forming material onto the post. To make a core-sheath yarn a core yarn is passed through an aperture in a rotating plate having at least one post. The post is contacted with a nanofiber-forming material the rotating plate is rotated to draw a fiber of nanofiber-forming material from the post to wrap the fiber around the core yarn.

Methods and devices for multi-layer nanofibers

A simple controllable set-up for drawing single filament nanofibers from polymer solutions or melts using a rotating rod or a set of rods (round brush) is described. The set-up can be assembled in a few minutes and applied to fabricate customized nanofiber scaffolds and meshes for various applications. The resulting fiber diameter is controlled precisely in the range 40 nm to 5 &#x3bc;m by adjusting the rotational speed and polymer concentration. Owing to the simple design and capability to manipulate single nanofibers, the spinning set-up can be used to wind a single filament into unidirectional, orthogonal or randomly oriented 2D and 3D meshes with controlled density, thickness and combinations of different fibers and materials in the scaffolds. The method is scalable and can be implemented easily for laboratory and industrial manufacturing.

Nanofiber spinning apparatus and method

Briefly described, embodiments of the present disclosure relate to structures including single-walled carbon nanotube/quantum dot networks, devices including the structures, and methods of making devices including the single-walled carbon nanotube/quantum dot networks.

Single-walled carbon nanotubes/quantum dot hybrid structures and methods of making and use of the hybrid structures

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Athens, GA, United States of America

Darya Asheghali