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MM: Fachverband Metall- und Materialphysik

MM 11: Biomaterials

MM 11.5: Vortrag

Montag, 20. März 2017, 12:45–13:00, IFW D

Electrospinning biopolymer nanofiber mats for medical and biotechnological applications — •Sarah Vanessa Homburg, Timo Grothe, Nils Grimmelsmann, and Andrea Ehrmann — Bielefeld University of Applied Sciences, Faculty of Engineering and Mathematics, Bielefeld, Germany

Electrospinning enable creating nanofiber mats from diverse polymers by "dragging" fibers from a polymer solution by a high electric field and depositing them on a substrate. Fiber properties can be controlled by spinning and solution parameters.

While several polymers need toxic or other hazardous solvents, biopolymers can often be spun from aqueous solutions. Additionally, several biopolymers can be used in diverse medical and biotechnological applications, e.g. for tissue engineering, enhanced wound healing, or controlled drug release, but also as filters in different industries. On the other hand, water-soluble nanofiber mats necessitate an additional crosslinking step for most applications.

The presentation gives an overview of the electrospinning principle, spinnable biopolymers and the challenges of crosslinking water-soluble fibers. Possibilities of co-spinning different polymers allowing fiber creation from unspinnable polymers are shown. Physical and chemical properties of nanofibers from different polymers and polymer blends are given.