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Controlled Morphing of Microbubbles to Beaded Nanofibers via Electrically Forced Thin Film Stretching

Yao, Z-C; Yuan, Q; Ahmad, Z; Huang, J; Li, J-S; Chang, M-W; (2017) Controlled Morphing of Microbubbles to Beaded Nanofibers via Electrically Forced Thin Film Stretching. Polymers , 9 (7) , Article 265. 10.3390/polym9070265. Green open access

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Abstract

Topography and microstructure engineering are rapidly evolving areas of importance for biomedical and pharmaceutical remits. Here, PVA (Polyvinyl alcohol) microbubbles (diameter range ~126 to 414 μm) were used to fabricate beaded (beads-on) nanofibers using an electrohydrodynamic atomization (EHDA) technique. Mean fiber diameter, inter-bead distance, and aspect ratio (AR) were investigated by regulating EHDA process parameters. PVA fibers (diameter range ~233 to 737 nm) were obtained possessing bead ARs in the range of ~10 to 56%. AR was used to modulate hydrophilicity and active release.

Type: Article
Title: Controlled Morphing of Microbubbles to Beaded Nanofibers via Electrically Forced Thin Film Stretching
Open access status: An open access version is available from UCL Discovery
DOI: 10.3390/polym9070265
Publisher version: http://doi.org/10.3390/polym9070265
Language: English
Additional information: © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Science & Technology, Physical Sciences, Polymer Science, bubble, beaded nanofibers, electrospinning, polyvinyl alcohol, COMPOSITE FIBERS, DRUG-RELEASE, MORPHOLOGY, MICROPARTICLES, ENCAPSULATION, FABRICATION, MEMBRANES, SURFACE, OIL
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10025114
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