Vortex fluidic mediated one-step fabrication of polyvinyl alcohol hydrogel films with tunable surface morphologies and enhanced self-healing properties

Tavakoli, J; Raston, CL; Ma, Y; Tang, Y

Vortex fluidic mediated one-step fabrication of polyvinyl alcohol hydrogel films with tunable surface morphologies and enhanced self-healing properties

Tavakoli, J

Raston, CL Ma, Y Tang, Y

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Publisher:: Springer Science and Business Media LLC
Publication Type:: Journal Article
Citation:: Science China Materials, 2020, 63, (7), pp. 1310-1317
Issue Date:: 2020-07-01

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Field	Value	Language
dc.contributor.author	Tavakoli, J https://orcid.org/0000-0002-0696-6530
dc.contributor.author	Raston, CL
dc.contributor.author	Ma, Y
dc.contributor.author	Tang, Y
dc.date.accessioned	2020-11-12T04:40:09Z
dc.date.available	2021-04-21T19:00:47Z
dc.date.issued	2020-07-01
dc.identifier.citation	Science China Materials, 2020, 63, (7), pp. 1310-1317
dc.identifier.issn	2095-8226
dc.identifier.issn	2199-4501
dc.identifier.uri	http://hdl.handle.net/10453/143950
dc.description.abstract	© 2020, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature. Previous strategies for controlling the surface morphologies of polyvinyl alcohol (PVA)-based hydrogels, including freeze-drying and electrospinning, require a post-treatment process, which can affect the final textures and properties of the hydrogels. Of particular interest, it is almost impossible to control the surface morphology during the formation of PVA hydrogels using these approaches. The strategy reported in this study used the novel vortex fluidic device (VFD) technology, which for the first time provided an opportunity for one-step fabrication of PVA hydrogel films. PVA hydrogels with different surface morphologies could be readily fabricated using a VFD. By also reducing the cross-linking agent concentration, a self-healing gel with enhanced fracture stress (60% greater than that of traditionally made hydrogel) was achieved. Interestingly, the associated self-healing property remained unchanged during the 260-s mechanical testing performed with the strain rate of 5% s−1. The VFD can effectively tune the surface morphologies of the PVA-based hydrogels and their associated properties, particularly the self-healing property.
dc.language	en
dc.publisher	Springer Science and Business Media LLC
dc.relation.ispartof	Science China Materials
dc.relation.isbasedon	10.1007/s40843-020-1301-y
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	This is a post-peer-review, pre-copyedit version of an article published in Science China Materials. The final authenticated version is available online at: https://dx.doi.org/10.1007/s40843-020-1301-y.	en_US
dc.title	Vortex fluidic mediated one-step fabrication of polyvinyl alcohol hydrogel films with tunable surface morphologies and enhanced self-healing properties
dc.type	Journal Article
utslib.citation.volume	63
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CHT - Health Technologies
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Biomedical Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	open_access	*
dc.date.updated	2020-11-12T04:40:03Z
pubs.issue	7
pubs.publication-status	Published
pubs.volume	63
utslib.citation.issue	7

Abstract:

© 2020, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature. Previous strategies for controlling the surface morphologies of polyvinyl alcohol (PVA)-based hydrogels, including freeze-drying and electrospinning, require a post-treatment process, which can affect the final textures and properties of the hydrogels. Of particular interest, it is almost impossible to control the surface morphology during the formation of PVA hydrogels using these approaches. The strategy reported in this study used the novel vortex fluidic device (VFD) technology, which for the first time provided an opportunity for one-step fabrication of PVA hydrogel films. PVA hydrogels with different surface morphologies could be readily fabricated using a VFD. By also reducing the cross-linking agent concentration, a self-healing gel with enhanced fracture stress (60% greater than that of traditionally made hydrogel) was achieved. Interestingly, the associated self-healing property remained unchanged during the 260-s mechanical testing performed with the strain rate of 5% s−1. The VFD can effectively tune the surface morphologies of the PVA-based hydrogels and their associated properties, particularly the self-healing property.

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http://hdl.handle.net/10453/143950