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Sodium-alginate biopolymer as a template for the synthesis of nontoxic red emitting Mn2+-doped CdS nanoparticles

dc.affiliation.dptoUC3M. Departamento de Físicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Materiales Nano-Estructurados y Multifuncionaleses
dc.contributor.authorKuzmanovic, Maja
dc.contributor.authorBozanic, Dusan
dc.contributor.authorMilivojevic, D.
dc.contributor.authorMitic Culafic, D.
dc.contributor.authorStankovic, S.
dc.contributor.authorBallesteros Pérez, Carmen Inés
dc.contributor.authorGonzález Benito, Francisco Javier
dc.contributor.funderComunidad de Madrides
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es
dc.contributor.funderUniversidad Carlos III de Madrides
dc.date.accessioned2021-06-29T11:27:59Z
dc.date.available2021-06-29T11:27:59Z
dc.date.issued2017-11-21
dc.description.abstractManganese-doped cadmium sulfide (CdS:Mn) nanoparticles were prepared by chemical synthesis using sodium-alginate as template. The preparation of the nanocomposites involved ionic crosslinking of the biopolymer by dimerization of its alpha-L-guluronic monomers with Cd2+ and subsequent formation of the semiconductor nanoparticles upon addition of sulfide ions in the presence of Mn2+. The crystalline phase of CdS in the material was confirmed by XRD. The surface morphology of the nanocomposites was investigated by SEM. The observation by TEM showed that the CdS:Mn particles were spherical in shape with diameters of approximately 4 nm. EPR measurements of the CdS:Mn-alginate nanocomposite showed that the Mn2+ ions were incorporated in cationic sites of CdS with lower symmetry. Due to a distorted crystal field induced by the Mn2+ ions, photoluminescence spectra of the CdS:Mn-alginate showed red fluorescence between 650 nm and 750 nm falling into the optical window for bioimaging in which the light has its maximum tissue penetration depth. It was demonstrated that the interaction between the nanoparticles and the matrix prevents release of CdS into the environment, leading to low acute toxicity of the nanocomposites.en
dc.description.sponsorshipThis research was financially supported by the Ministerio de Ciencia e Innovación (grant MAT2010-16815); Ministerio de Economía y Competitividad (grant MAT2014-59116-C2); Fondos de Investigación de Fco. Javier Gonzalez Benito, política de reinversión de costes generales, Universidad Carlos III de Madrid (Ref.: 2012/00130/004); Acción Estratégica en Materiales Compuestos Poliméricos e Interfases, Universidad Carlos III de Madrid (Ref.: 2011/00287/002), and TECHNOFUSION(II)-CM (S2013/MAE-2745) Spain. M. K. acknowledges University Carlos III Madrid for the financial support via 'Ayudas al estudio de Master Universitario'. D. K. B. would like to thank the University Carlos III Madrid for the 'Estancias postdoctorales fellowship'. TEM characterization was made at LABMET, associated to the Red de Laboratorios de la Comunidad de Madrid. D. K. B and D. M acknowledge the Ministry of Education and Science of the Republic of Serbia for the financial support (Project No. 172056 and 45020).en
dc.format.extent11es
dc.identifier.bibliographicCitationRSC advances, 84(7), Nov. 2017, Pp. 53422-53432en
dc.identifier.doihttps://doi.org/10.1039/c7ra11011a
dc.identifier.issn2046-2069
dc.identifier.publicationfirstpage53422es
dc.identifier.publicationissue84es
dc.identifier.publicationlastpage53432es
dc.identifier.publicationtitleRSC Advancesen
dc.identifier.publicationvolume7es
dc.identifier.urihttps://hdl.handle.net/10016/32954
dc.identifier.uxxiAR/0000020830
dc.language.isoengen
dc.publisherRoyal Society of Chemistryen
dc.relation.projectIDGobierno de España. MAT2010-16815es
dc.relation.projectIDGobierno de España. MAT2014-59116-C2-1-Res
dc.relation.projectIDComunidad de Madrid. S2013/MAE-2745/TECHNOFUSION(II)es
dc.rightsThis journal is © The Royal Society of Chemistry 2017en
dc.rightsOpen Access Article. Published on 21 November 2017. This article is licensed under a Creative Commons Attribution 3.0 Unported licenceen
dc.rightsAtribución 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subject.ecienciaFísicaes
dc.subject.ecienciaMaterialeses
dc.subject.otherAlginateen
dc.subject.otherBiomoleculesen
dc.subject.otherCadmium compoundsen
dc.subject.otherCadmium sulfideen
dc.subject.otherCrosslinkingen
dc.subject.otherIonsen
dc.subject.otherManganese compoundsen
dc.subject.otherNanocompositesen
dc.subject.otherNanoparticlesen
dc.subject.otherPhotoluminescenceen
dc.subject.otherSodium alginateen
dc.subject.otherSulfur compoundsen
dc.subject.otherSynthesis (Chemical)en
dc.titleSodium-alginate biopolymer as a template for the synthesis of nontoxic red emitting Mn2+-doped CdS nanoparticlesen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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