Nature-inspired robust hydrochromic film for dual anticounterfeiting

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dc.contributor.authorSi, Pengxiang
dc.contributor.authorLiang, Mingrui
dc.contributor.authorSun, Manyou
dc.contributor.authorZhao, Boxin
dc.date.accessioned2022-01-31T21:49:40Z
dc.date.available2022-01-31T21:49:40Z
dc.date.issued2021-06
dc.description.abstractNature-inspired materials have been actively developed for anticounterfeiting applications. Among a variety of stimuli-responsive anticounterfeiting strategies, hydrochromic materials exhibit reversible color change in response to moisture or water and have the advantage of being easy to authenticate. However, the security level of current hydrochromic anticounterfeiting materials is not sufficient for practical applications since they only exhibit a single anticounterfeiting function, where the information switches between visible and invisible. To improve the security level and efficiency of hydrochromic anticounterfeiting materials, here we developed a robust dual hydrochromic material via the self-assembly of polyurethane (PU)-polyelectrolytes colloids with which the desired information can not only switch between visible and invisible but also transform from one pattern to another within 3 s without the need of any external instruments. The bio-inspiration, material design and demonstrated hydrochromic properties might have profound implications for using colloidal complexes to make advanced anticounterfeiting materials.en
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canadaen
dc.identifier.urihttps://doi.org/10.1016/j.isci.2021.102652
dc.identifier.urihttp://hdl.handle.net/10012/18024
dc.language.isoenen
dc.publisherElsevieren
dc.relation.ispartofseriesiScience;
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectbiomimeticsen
dc.subjectmaterials designen
dc.subjectmaterials propertyen
dc.titleNature-inspired robust hydrochromic film for dual anticounterfeitingen
dc.typeArticleen
dcterms.bibliographicCitationSi, P., Liang, M., Sun, M., & Zhao, B. (2021). Nature-inspired robust hydrochromic film for dual anticounterfeiting. IScience, 24(6), 102652. https://doi.org/10.1016/j.isci.2021.102652en
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation1Faculty of Scienceen
uws.contributor.affiliation2Chemical Engineeringen
uws.contributor.affiliation2Waterloo Institute for Nanotechnology (WIN)en
uws.peerReviewStatusRevieweden
uws.scholarLevelFacultyen
uws.scholarLevelPost-Doctorateen
uws.scholarLevelGraduateen
uws.typeOfResourceTexten

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