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Hyperelastic Nanocellulose-Reinforced Hydrogel of High Water Content for Ophthalmic Applications
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials. (Nanotechnology and functional materials)ORCID iD: 0000-0001-7638-0925
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials.ORCID iD: 0000-0003-2079-4170
Department of Clinical and Experimental Medicine, Linköping University, 581 85 Linköping, Sweden..
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2016 (English)In: ACS Biomaterials Science and Engineering, ISSN 2373-9878, Vol. 2, no 11, 2072-2079 p.Article in journal (Refereed) Published
Abstract [en]

A nanocellulose-reinforced poly(vinyl alcohol) hydrogel material of exceptionally high water content for ophthalmic applications is presented (>90 wt %), which also features a hitherto unprecedented combination of optical, mechanical, viscoelastic, oxygen permeability, and biocompatibility properties. The hydrogel combines the desired softness with remarkable strain-dependent mechanical strength and thereby demonstrates hyperelastic, rubber-like mechanical properties. The observed unusual mechanical behavior is due to both high water content and the combination of relatively stiff cellulose nanowhiskers entangled in a soft polymer matrix of poly(vinyl alcohol) (PVA), thus mimicking the structural characteristics of the cornea's main constituents, i.e., water and collagen.

Place, publisher, year, edition, pages
2016. Vol. 2, no 11, 2072-2079 p.
Keyword [en]
biocompatibility, cellulose nanocrystals, contact lens, ophthalmic prosthesis, poly(vinyl alcohol)
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
URN: urn:nbn:se:uu:diva-310474DOI: 10.1021/acsbiomaterials.6b00484ISI: 000388161200027ScopusID: 2-s2.0-84995379882OAI: oai:DiVA.org:uu-310474DiVA: diva2:1057044
Projects
WWSC
Funder
Knut and Alice Wallenberg FoundationVINNOVA, 2013-04645
Available from: 2016-12-16 Created: 2016-12-16 Last updated: 2017-02-06Bibliographically approved

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