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Sulfonated polymethylsiloxane as an additive for selective calcium oxalate crystallization

Authordc.contributor.authorNeira Carrillo, Andrónico 
Authordc.contributor.authorLuengo Ponce, Fabián Alberto 
Authordc.contributor.authorVásquez Quitral, Patricio 
Authordc.contributor.authorYazdani-Pedram Zobeiri, Mehrdad 
Authordc.contributor.authorFernández, María Soledad 
Authordc.contributor.authorCölfen, Helmut 
Authordc.contributor.authorArias, José Luis 
Cita de ítemdc.identifier.citationEuropean Journal of Inorganic Chemistry ; 2015, 7. - S. 1167-1177
Abstractdc.description.abstractSulfonated and fluorescent polymethylsiloxanes (SO3H-PMS) were synthesized, and their effect as additives on in vitro calcium oxalate (CaOx) crystallization was evaluated. SO3H-PMS was prepared by hydrosilylation and sulfonation reactions with poly(dimethylsiloxane-co-hydrogenmethylsiloxane) (PDMS-co-PMHS). Several analytical tools were used to investigate the morphology, crystal structure, and chemical contents of the harvested CaOx crystals. Varying the concentration of SO3H-PMS induces a transition of CaOx monohydrate (COM) with expanded multilayer and circular stacked-sheet morphologies as well as of the bipyramidal CaOx dihydrate (COD) crystals in three crystallization procedures. Energy-dispersive X-ray spectroscopy (EDS) and XRD allowed detecting the presence of Si (0.2-1.0 degrees wt.-%), which stems from SO3H-PMS adsorbed on CaOx, and the selective formation of phases of COM and COD. We demonstrated that the presence of anionic moieties on the SO3H-PMS backbone and their concentration were crucial to control the crystal type, morphology, crystal size, and chemical composition.
Publisherdc.publisherWiley-VCH Verlag
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
Link to Licensedc.rights.uri
Sourcedc.sourceEuropean Journal of Inorganic Chemistry
Keywordsdc.subjectCalcium oxalate
Keywordsdc.subjectCrystal growth
Keywordsdc.subjectSulfonated polymethylsiloxane
Keywordsdc.subjectTemplate synthesis
Títulodc.titleSulfonated polymethylsiloxane as an additive for selective calcium oxalate crystallization
Document typedc.typeArtículo de revista
Indexationuchile.indexArtículo de publicación SCOPUS

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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile