Nanopatterned protein-polysaccharide thin films by humidity regulated phase separation

dc.contributor.authorBanta, Russell A.
dc.contributor.authorCollins, Timothy W.
dc.contributor.authorCurley, Ricky
dc.contributor.authorYoung, Paul W.
dc.contributor.authorHolmes, Justin D.
dc.contributor.authorFlynn, Eoin J.
dc.contributor.funderIrish Research Council for Science, Engineering and Technologyen
dc.date.accessioned2018-08-03T15:00:04Z
dc.date.available2018-08-03T15:00:04Z
dc.date.issued2018-07-25
dc.date.updated2018-08-03T12:36:57Z
dc.description.abstractGreater sustainability in mass manufacturing is essential to alleviating anthropogenic climate change. High surface-area, micro- and nano-patterned films have become a fundamental tool in materials science, however these technologies are subject to a dwindling petrochemical supply, increasing costs and disposability concerns. This paper describes the production of patterned biopolymer films utilizing controlled phase separation of biopolymeric thin films into nanopatterns using easily transferable variables and methods. Similar morphologies to those commonly observed with synthetic block-copolymers (BCPs) were achieved across a large range of feature sizes, from 160 nm to >5 μm: Bicontinuous, porous, droplet-matrix, particulated and dimpled. Protein and polysaccharide type, protein to polysaccharide ratio, casting method and ambient humidity were primary conditions found to influence the pore morphology of the films. High protein concentrations (4:1 and 2:1 blends) generally resulted in porous structures whereas high polysaccharide concentrations (1:2 and 1:4 blends) resulted in spherical structures. High humidity conditions (60% + relative humidity) resulted in the growth of large protuberances up to 10 µm in diameter while lower humidity (10–30%) resulted in discrete features smaller than 200 nm.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationBanta, R. A., Collins, T. W., Curley, R. A., Young, P. W., Holmes, J. D. and Flynn, E. J. (2018) 'Nanopatterned protein-polysaccharide thin films by humidity regulated phase separation', Journal of Colloid and Interface Science, 532, pp. 171-181. doi: 10.1016/j.jcis.2018.07.109en
dc.identifier.doi10.1016/j.jcis.2018.07.109
dc.identifier.endpage181en
dc.identifier.issn0021-9797
dc.identifier.journaltitleJournal of Colloid and Interface Scienceen
dc.identifier.startpage171en
dc.identifier.urihttps://hdl.handle.net/10468/6579
dc.identifier.volume532en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0021979718308737
dc.rights© 2018 Elsevier B.V. This submitted manuscript version is made available under the CC-BY-NC-ND 4.0 license.en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectProteinen
dc.subjectPolysaccharideen
dc.subjectBiopolymeren
dc.subjectPatterningen
dc.subjectMorphologyen
dc.subjectPhase separationen
dc.subjectOstwald ripeningen
dc.titleNanopatterned protein-polysaccharide thin films by humidity regulated phase separationen
dc.typeArticle (preprint)en
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