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dc.contributor.author
Moya Betancourt, Sara Natalia  
dc.contributor.author
Cámara, Candelaria Inés  
dc.contributor.author
Juárez, Ana Valeria  
dc.contributor.author
Pozo Lopez, Gabriela del Valle  
dc.contributor.author
Riva, Julieta Soledad  
dc.date.available
2023-08-02T17:10:28Z  
dc.date.issued
2022-03  
dc.identifier.citation
Moya Betancourt, Sara Natalia; Cámara, Candelaria Inés; Juárez, Ana Valeria; Pozo Lopez, Gabriela del Valle; Riva, Julieta Soledad; Effect of magnetic nanoparticle coating on their electrochemical behaviour at a polarized liquid/liquid interface; Elsevier Science SA; Journal of Electroanalytical Chemistry; 911; 3-2022; 116253-116261  
dc.identifier.issn
1572-6657  
dc.identifier.uri
http://hdl.handle.net/11336/206595  
dc.description.abstract
The interface between two immiscible electrolyte solutions (ITIES) can act as a platform for the assembly of nanoscale materials. Here, we study the effect of the coated magnetic nanoparticles most commonly used in biomedicine, on their interfacial properties, analysing the effect of applied potential on their interfacial behaviour, and the interactions that occur during these perturbations. The importance of this study is based on the similarity of the water/organic solvent interface with that generated at the cell membrane in the extra-cellular environment. Magnetite nanoparticles were successfully obtained by co-precipitation method, and were coated with chitosan and diethylaminoethyl dextran. Microstructure, magnetic properties and the electrochemical behaviour of the nanoparticles at liquid/liquid interfaces were studied. The presence of these nanoparticles at the interface facilitates the ion transfer process and increases the value of capacity charge, revealed by adsorption curves. These effects depend on the coating polymer and the amount of magnetic nanoparticles adsorbed at the interface, being higher for nanoparticles coated with chitosan. The main difference in the interfacial behaviour of the coated nanoparticles is due to the distribution of the amine groups in the chain of both polymers, since in chitosan the amine groups interact easily with ions present in both phases, because it has a linear structure, different from the branched diethylaminoethyl dextran. The results obtained in this work contribute to understanding the interactions between polymers and magnetic nanoparticles and demonstrate that liquid/liquid interfaces can be used successfully to analyse the effect that different coatings have on their interfacial behaviour.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science SA  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
CHITOSAN  
dc.subject
DEAE-DEXTRAN  
dc.subject
LIQUID/LIQUID INTERFACES  
dc.subject
MAGNETITE  
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica  
dc.subject.classification
Ciencias Químicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Effect of magnetic nanoparticle coating on their electrochemical behaviour at a polarized liquid/liquid interface  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-07-07T21:37:39Z  
dc.journal.volume
911  
dc.journal.pagination
116253-116261  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Moya Betancourt, Sara Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina  
dc.description.fil
Fil: Cámara, Candelaria Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina  
dc.description.fil
Fil: Juárez, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina  
dc.description.fil
Fil: Pozo Lopez, Gabriela del Valle. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina  
dc.description.fil
Fil: Riva, Julieta Soledad. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.journal.title
Journal of Electroanalytical Chemistry  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jelechem.2022.116253  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1572665722002454