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http://hdl.handle.net/2445/178927
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DC Field | Value | Language |
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dc.contributor.author | Calderó Linnhoff, Gabriela | - |
dc.contributor.author | Leitner, Stefanie | - |
dc.contributor.author | García Celma, Ma José | - |
dc.contributor.author | Solans Marsà, Conxita | - |
dc.date.accessioned | 2021-07-08T11:47:02Z | - |
dc.date.available | 2021-07-08T11:47:02Z | - |
dc.date.issued | 2019-12-01 | - |
dc.identifier.issn | 0144-8617 | - |
dc.identifier.uri | http://hdl.handle.net/2445/178927 | - |
dc.description.abstract | Ethylcellulose nano-emulsions have been obtained by the low-energy phase inversion composition method in the Water / [Alkylamidoammonium: Cremophor WO7] / [6% ethylcellulose in ethyl acetate] system at 25 °C. It is shown that nano-emlulsions' composition variables (oil-to-surfactant ratio, cationic: nonionic surfactant ratio and polymer and water content) produce changes in their droplet diameter, surface charge and colloidal stability following defined trends. Nano-emulsions with good stability, droplet diameters between about 120 and 200 nm and surface charge from about 10 to 50 mV have been obtained. Nano-emulsions are further used as templates for nanoparticle dispersions preparation, which show sizes and surface charges typically smaller and similar respectively to their nano-emulsion templates. Cationic: nonionic surfactant ratio has the highest influence on both, size and surface charge, followed by oil-to-surfactant ratio and water content. Interestingly, the positive charge of the nanoparticles can be depleted under diluting conditions in a time-dependent manner. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1016/j.carbpol.2019.115201 | - |
dc.relation.ispartof | Carbohydrate Polymers, 2019, vol. 225 | - |
dc.relation.uri | https://doi.org/10.1016/j.carbpol.2019.115201 | - |
dc.rights | cc-by-nc-nd (c) Elsevier B.V., 2019 | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | - |
dc.source | Articles publicats en revistes (Farmàcia, Tecnologia Farmacèutica i Fisicoquímica) | - |
dc.subject.classification | Nanopartícules | - |
dc.subject.classification | Emulsions (Farmàcia) | - |
dc.subject.classification | Nanofluids | - |
dc.subject.classification | Materials nanoestructurats | - |
dc.subject.other | Nanoparticles | - |
dc.subject.other | Emulsions (Pharmacy) | - |
dc.subject.other | Nanofluids | - |
dc.subject.other | Nanostructured materials | - |
dc.title | Modulating size and surface charge of ethylcellulose nanoparticles through the use of cationic nano-emulsion templates | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 698440 | - |
dc.date.updated | 2021-07-08T11:13:00Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Farmàcia, Tecnologia Farmacèutica i Fisicoquímica) |
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698440.pdf | 733.75 kB | Adobe PDF | View/Open |
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