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Hydrophilic Organic Electrodes on Flexible Hydrogels
University of S Australia, Australia; ETH, Switzerland.
University of S Australia, Australia; University of Strasbourg, France.
University of S Australia, Australia; Polytech Institute Bordeaux, France.
University of S Australia, Australia.
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2016 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 8, no 1, 974-982 p.Article in journal (Refereed) PublishedText
Abstract [en]

Prompted by the rapidly developing field of wearable electronics, research into biocompatible substrates and coatings is intensifying. Acrylate-based hydrogel polymers have gained widespread use as biocompatible articles in applications such as contact and intraocular lenses. Surface treatments and/or coatings present one strategy to further enhance the performance of these hydrogels or even realize novel functionality. In this study, the conductive polymer poly(3,4-ethylenedioxythiophene) (PEDOT) is deposited from the vapor phase onto hydrated hydrogel substrates and blended with biocompatibilizing coconstituents incorporating polyethylene glycol (PEG) and polydimethyl siloxane (PDMS) moieties. Plasma pretreatment of the dehydrated hydrogel substrate modifies its surface topography and chemical composition to facilitate the attachment of conductive PEDOT-based surface layers. Manipulating the vapor phase polymerization process and constituent composition, the PEDOT-based coating is engineered to be both hydrophilic (i.e. to promote biocompatibility) and highly conductive. The fabrication of this conductively coated hydrogel has implications for the future of wearable electronic devices.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2016. Vol. 8, no 1, 974-982 p.
Keyword [en]
conducting polymers; contact lens; hydrophilicity; plasma treatment; vapor phase polymerization
National Category
Chemical Sciences
URN: urn:nbn:se:liu:diva-125315DOI: 10.1021/acsami.5b10831ISI: 000368563000116PubMedID: 26698297OAI: diva2:906252

Funding Agencies|Australian Research Council [LP110200760]

Available from: 2016-02-24 Created: 2016-02-19 Last updated: 2016-02-24

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