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Reversible water driven chirality inversion in cellulose-based helices isolated from Erodium awns

2019-04-07Journal article Restricted access
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dc.contributor.authorAlmeida, Ana
dc.contributor.authorQuerciagrossa, Lara
dc.contributor.authorSilva, Pedro
dc.contributor.authorGonçalves, Filipa
dc.contributor.authorCanejo, João
dc.contributor.authorAlmeida, Pedro L.
dc.contributor.authorGodinho, Maria Helena
dc.contributor.authorZannoni, Claudio
dc.date.accessioned2019-04-30T13:24:42Z
dc.date.available2019-04-30T13:24:42Z
dc.date.issued2019-04-07
dc.description.abstractAmong the movements observed in some cellulosic structures produced by plants are those that involve the dispersion and burial of seeds, as for example in Erodium from the Geraniaceae plant family. Here we report on a simple and efficient strategy to isolate and tune cellulose-based hygroscopic responsive materials from Erodium awns’ dead tissues. The stimuli-responsive material isolated forms left-handed (L) or right-handed (R) helical birefringent transparent ribbons in the wet state that reversibly change to R helices when the material dries. The humidity-driven motion of dead tissues is most likely due to a composite material made of cellulose networks of fibrils imprinted by the plant at the nanoscale, which reinforces a soft wall polysaccharide matrix. The inversion of the handedness is explained using computational simulations considering filaments that contract and expand asymmetrically. The awns of Erodium are known to present hygroscopic movements, forming R helices in the dry state, but the possibility of actuating chirality via humidity suggests that these cellulose-based skeletons, which do not require complicated lithography and intricate deposition techniques, provide a diverse range of applications from intelligent textiles to micro-machines.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationALMEIDA, Ana P. C.; [et al] – Reversible water driven chirality inversion in cellulose-based helices isolated from Erodium awns. Soft Matter. ISSN 1744-6848. Vol. 15, N.º 13 (2019), pp. 2838-2847pt_PT
dc.identifier.doi10.1039/c8sm02290apt_PT
dc.identifier.issn1744-6848
dc.identifier.issn1744-683X
dc.identifier.urihttp://hdl.handle.net/10400.21/9908
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRoyal Society of Chemistrypt_PT
dc.relationFabricating cellulose nanocomposites for structural coloration
dc.relationPhotonic structures from plant micro/nano chiral filaments
dc.relationCellulose Nano-Structures Mimic Nature´s Lotus Effect
dc.subjectReversible waterpt_PT
dc.subjectChirality inversionpt_PT
dc.subjectCellulose-basedpt_PT
dc.subjectErodium awnspt_PT
dc.titleReversible water driven chirality inversion in cellulose-based helices isolated from Erodium awnspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleFabricating cellulose nanocomposites for structural coloration
oaire.awardTitlePhotonic structures from plant micro/nano chiral filaments
oaire.awardTitleCellulose Nano-Structures Mimic Nature´s Lotus Effect
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FCTM%2F50025%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-NAN%2F0117%2F2014/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F101041%2F2014/PT
oaire.citation.endPage2847pt_PT
oaire.citation.issue13pt_PT
oaire.citation.startPage2838pt_PT
oaire.citation.titleSoft Matterpt_PT
oaire.citation.volume15pt_PT
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person.familyNameAlmeida
person.familyNameQuerciagrossa
person.familyNameSilva
person.familyNameGonçalves
person.familyNameCanejo
person.familyNameMarques de Almeida
person.familyNameGodinho
person.familyNameZannoni
person.givenNameAna
person.givenNameLara
person.givenNamePedro
person.givenNameFilipa
person.givenNameJoão
person.givenNamePedro
person.givenNameMaria Helena
person.givenNameClaudio
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person.identifier.ridE-6523-2019
person.identifier.ridF-4918-2016
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