Journal
MACROMOLECULAR MATERIALS AND ENGINEERING
Volume 303, Issue 1, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.201700248
Keywords
actuators; bead-on-string; coaxial electrospinning; side-by-side; water collection
Funding
- German Science Foundation within the framework of the Collaborative Research Centre [SFB 840]
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Nature is an intriguing inspiration for designing a myriad of functional materials. However, artificial mimicking of bioinspired structures usually requires different specialized procedures and setups. In this study, a new upscalable concept is presented that allows to produce two bioinspired, bicomponent fiber morphologies (side-by-side and coaxial bead-on-string) using the same electrospinning setup, just by changing the employed spinning solvent. The generated fiber morphologies are highly attractive for thermoresponsive actuation and water harvesting. Another challenge solved in this work is the compositional characterization of complex fiber morphologies. Raman imaging and atomic force microscopy is introduced as a powerful method for the unambiguous characterization of complex bicomponent fiber morphologies. The work opens the way for the construction of heterostructured fiber morphologies based on different polymers combinations, offering high potential for applications as actuators, smart textiles, water management, drug release, and catalysis.
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