Drexel University

Evan Ostrow

Alisa Morss Clyne

Momtaz Alhindi

Lin Han

Lanziye He

Sabah Shafi

Jeffrey Krystek

Mingkun Wang

Li-Hsin Han

Chunxiao Cui

Victor Micucci

In one embodiment, the present invention is a method for producing microfibers comprising the steps of: (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and (g) repeating steps (d)-(f) as desired.

Method to produce micro and nanofibers with controlled diameter and large yield

A method for producing microfibers includes the steps of (a) providing a base material; (b) forming the base material in a ring; (c) gripping opposing ends of the ring; (d) flipping one of the opposing ends relative to the other of the opposing ends, forming an upper portion and a lower portion; (e) folding the upper portion onto the lower portion; (f) stretching the folded upper and lower portions; and repeating steps (d)-(f) as desired. Different apparatuses for performing the method are also provided.

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Penllyn, PA, United States of America

Evan Ostrow