Asymmetrical coffee rings from cellulose nanocrystals and prospects in art and design

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Klockars, Konrad W. Yau, Noora E. Tardy, Blaise L. Majoinen, Johanna Kämäräinen, Tero Miettunen, Kati Boutonnet, Elisa Borghei, Maryam Beidler, Jaana Rojas, Orlando J. 2019-03-05T10:14:23Z 2019-03-05T10:14:23Z 2019-01-15
dc.identifier.citation Klockars , K W , Yau , N E , Tardy , B L , Majoinen , J , Kämäräinen , T , Miettunen , K , Boutonnet , E , Borghei , M , Beidler , J & Rojas , O J 2019 , ' Asymmetrical coffee rings from cellulose nanocrystals and prospects in art and design ' Cellulose , vol. 26 , no. 1 , pp. 491-506 . en
dc.identifier.issn 0969-0239
dc.identifier.issn 1572-882X
dc.identifier.other PURE UUID: 2e6f9f22-90a0-43c5-a75c-aab8c7ee4235
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
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dc.description.abstract The iridescence displayed by films made from cellulose nanocrystals (CNCs) has long been the subject of fundamental research. This has expanded our understanding of colloidal self-assembly towards the development of advanced materials. However, the application of such findings is less reported for visual designs that exploit structural color. Aesthetic outputs are already in reach, but requires input from trend setters in the design and art industries. In this realm, the CNC-based iridescence uniquely offers broadband, multi-colored reflections through the “coffee ring” effect, which arises upon evaporation-induced self-assembly (EISA). Although this effect has been thoroughly studied in the context of axisymmetric patterns, complex geometries remain to be evaluated for large-scale implementation. This is central to the present efforts, where EISA of CNC suspensions occurred onto non-circular surfaces. We used orientation-dependent contact angle measurements, profilometry and fixed-light source photography tounveil the effect of asymmetric drying fluxes at sharp angles, between 30° and 90°, on CNC particle deposition and resulting color patterns. We also demonstrate the causality between increased capillary fluxes and deposition with the help of modelling via energy minimization of the suspension volume onto a given surface and using the diffusion equation to obtain the local concentration of water vapor during EISA. Lastly, we study the effect of background reflections as well as light and temperature resistance of CNC-based reflectors, both important for any deployment. The results from this multidisciplinary effort, involving applied design, art and colloid chemistry, point to the excellent prospects of CNC films for the development of structured and chromatic patterns. Graphical abstract: [Figure not available: see fulltext.]. en
dc.format.extent 16
dc.format.extent 491-506
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher SPRINGER
dc.relation.ispartofseries Cellulose en
dc.relation.ispartofseries Volume 26, issue 1 en
dc.rights openAccess en
dc.subject.other Polymers and Plastics en
dc.subject.other 221 Nanotechnology en
dc.subject.other 6132 Visual arts and design en
dc.title Asymmetrical coffee rings from cellulose nanocrystals and prospects in art and design en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Bioproducts and Biosystems
dc.contributor.department Biohybrid materials
dc.contributor.department Bio-based Colloids and Materials
dc.contributor.department Department of Design
dc.subject.keyword Art and design
dc.subject.keyword Cellulose nanocrystals
dc.subject.keyword Coffee rings
dc.subject.keyword Color fading
dc.subject.keyword Iridescence
dc.subject.keyword MARANGONI-FLOW
dc.subject.keyword FILMS
dc.subject.keyword SUSPENSIONS
dc.subject.keyword COLOR
dc.subject.keyword DEGRADATION
dc.subject.keyword GLYCOL)
dc.subject.keyword Polymers and Plastics
dc.subject.keyword 221 Nanotechnology
dc.subject.keyword 6132 Visual arts and design
dc.identifier.urn URN:NBN:fi:aalto-201903052151
dc.identifier.doi 10.1007/s10570-018-2167-7
dc.type.version publishedVersion

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