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Microrheology of novel cellulose stabilized oil-in-water emulsions

2018-12Journal article Restricted
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dc.contributor.authorMedronho, Bruno
dc.contributor.authorFilipe, A.
dc.contributor.authorCosta, C.
dc.contributor.authorRomano, Anabela
dc.contributor.authorLindman, B.
dc.contributor.authorEdlund, H.
dc.contributor.authorNorgren, M.
dc.date.accessioned2018-12-07T14:52:45Z
dc.date.available2018-12-07T14:52:45Z
dc.date.issued2018-12
dc.description.abstractDiffusing wave spectroscopy (DWS) is a powerful optical technique suitable to investigate turbid samples in a nondestructive and reproducible way, providing information on the static and dynamic properties of the system. This includes the relative displacement of emulsion droplets over time and changes in the viscoelastic properties. Here, novel and promising cellulose-based oil-in-water (O/W) emulsions were prepared and studied, for the first time, by DWS. Cellulose plays the role of a novel eco-friendly emulsifying agent. The hydrolysis time of cellulose was observed to affect the average size of the emulsion droplets and their stability; the longer the hydrolysis time, the more dispersed and stable the emulsions were found to be. Additionally, a good complementarity between the microrheology (DWS) and macrorheology (mechanical rheometer) data was found. Our work suggests that DWS is a highly attractive method to investigate the stability, aging and microrheology properties of cellulose-based emulsions, providing valuable insights on their microstructure. This technique is thus highly appealing for the characterization and design of novel emulsion formulations. (C) 2018 The Authors. Published by Elsevier Inc.
dc.description.sponsorshipPortuguese Foundation for Science and Technology (FCT) 030619 (02/SAICT/2017) Sodra Skogsagarnas Stiftelse; Stiftelsen Nils och Dorthi Troedssons forskningsfond; Swedish Research Council VR [2015-04290]
dc.identifier.doi10.1016/j.jcis.2018.07.043
dc.identifier.issn0021-9797
dc.identifier.issn1095-7103
dc.identifier.urihttp://hdl.handle.net/10400.1/11197
dc.language.isoeng
dc.peerreviewedyes
dc.publisherAcademic Press Inc Elsevier Science
dc.relationFrom Forest to Textiles: Development of Sustainable Processes for the Production of Ecological Man-made Cellulose Fibres
dc.subjectDiffusing-wave spectroscopy
dc.subjectMean free-path
dc.subjectPhosphoric-acid
dc.subjectComplex fluids
dc.subjectViscoelastic moduli
dc.subjectPhysical stability
dc.subjectLight-scattering
dc.subjectBrownian-motion
dc.subjectDissolution
dc.subjectRheology
dc.titleMicrorheology of novel cellulose stabilized oil-in-water emulsions
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleFrom Forest to Textiles: Development of Sustainable Processes for the Production of Ecological Man-made Cellulose Fibres
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAGR-TEC%2F4814%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F01005%2F2014%2FCP1234%2FCT0004/PT
oaire.citation.endPage232
oaire.citation.startPage225
oaire.citation.titleJournal of Colloid and Interface Science
oaire.citation.volume531
oaire.fundingStream3599-PPCDT
oaire.fundingStreamInvestigador FCT
person.familyNameMedronho
person.familyNameRomano
person.givenNameBruno
person.givenNameAnabela
person.identifier.ciencia-id6918-9AB3-8D22
person.identifier.ciencia-id8A18-7E9A-3B0E
person.identifier.orcid0000-0003-0972-1739
person.identifier.orcid0000-0002-7204-7428
person.identifier.ridP-5927-2014
person.identifier.scopus-author-id9940656700
person.identifier.scopus-author-id56249997600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
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