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Printing of Responsive Photonic Cellulose Nanocrystal Micro-Film Arrays

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cam.issuedOnline2018-09-21
cam.orpheus.successThu Jan 30 10:49:57 GMT 2020 - The item has an open VoR version.
datacite.issupplementedby.doi10.17863/CAM.25747
dc.contributor.authorZhao, T
dc.contributor.authorParker, Richard
dc.contributor.authorWilliams, Cyan
dc.contributor.authorLim, Kevin
dc.contributor.authorFrka-Petesic, Bruno
dc.contributor.authorVignolini, Silvia
dc.contributor.orcidZhao, Tianheng [0000-0002-2705-0329]
dc.contributor.orcidParker, Richard [0000-0002-4096-9161]
dc.contributor.orcidWilliams, Cyan [0000-0002-0218-016X]
dc.contributor.orcidLim, Kevin [0000-0002-9318-6232]
dc.contributor.orcidFrka-Petesic, Bruno [0000-0001-5002-5685]
dc.contributor.orcidVignolini, Silvia [0000-0003-0664-1418]
dc.date.accessioned2019-02-26T13:51:29Z
dc.date.available2019-02-26T13:51:29Z
dc.date.issued2018-09-21
dc.description.abstractInteractive materials capable of changing appearance upon exposure to external stimuli, such as photonic inks, are generally difficult to achieve on a large scale as they often require self-assembly processes that are difficult to control macroscopically. Here we overcome this problem by preparing arrays of cellulose nanocrystal (CNC) micro-films from discrete nanoliter sessile droplets. The obtained micro-films show extremely uniform and intense color, enabling exceptional consistency in optical appearance across the entire array. The color can be controlled through the initial ink formulation, enabling the printing of polychromatic dot-matrix images. Moreover, the high surface-to-volume ratio of the micro-films and the intrinsic hydrophilicity of the natural building block allow for a dramatic real-time colorimetric response to changes in relative humidity. The printed CNC micro-film arrays overcome the existing issues of scalability, optical uniformity and material efficiency, which have held back the adoption of CNC-based photonic materials in cosmetics, interactive-pigments or anti-counterfeit applications.
dc.description.sponsorshipThe European Research Council [ERC-2014-STG H2020 639088], the BBSRC David Phillips Fellowship [BB/K014617/1], the EPSRC [EP/L016087/1, EP/L015978/1, EP/N016920/1], and the Winton Programme for the Physics of Sustainability.
dc.identifier.doi10.17863/CAM.37215
dc.identifier.eissn1616-3028
dc.identifier.issn1616-301X
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/289988
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.publisher.urlhttp://dx.doi.org/10.1002/adfm.201804531
dc.subjectcellulose nanocrystals
dc.subjectcholesteric liquid crystals
dc.subjectcolloidal self-assembly
dc.subjecthumidity sensors
dc.subjectsessile droplets
dc.titlePrinting of Responsive Photonic Cellulose Nanocrystal Micro-Film Arrays
dc.typeArticle
dcterms.dateAccepted2018-08-13
prism.number1804531
prism.publicationDate2018
prism.publicationNameAdvanced Functional Materials
pubs.funder-project-idBiotechnology and Biological Sciences Research Council (BB/K014617/1)
pubs.funder-project-idEPSRC (1648007)
pubs.funder-project-idEuropean Research Council (639088)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/N016920/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/L015978/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/L016087/1)
rioxxterms.licenseref.startdate2018-09-21
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review
rioxxterms.versionAM
rioxxterms.versionofrecord10.1002/adfm.201804531

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