Development of a promising antitumor compound based on rhodium(ii) succinate associated with iron oxide nanoparticles coated with lauric acid/albumin hybrid: synthesis, colloidal stability and cytotoxic effect in breast carcinoma cells

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dc.creatorSilva, Matheus Oliveira da
dc.creatorCarneiro, Marcella Lemos Brettas
dc.creatorSiqueira, Joseilma Luciana Neves
dc.creatorBáo, Sônia Nair
dc.creatorSouza, Aparecido Ribeiro de
dc.date.accessioned2023-08-17T11:00:00Z
dc.date.available2023-08-17T11:00:00Z
dc.date.issued2018-06
dc.description.abstractIn this study, we report the synthesis and characterization of a new rhodium(II) succinate complex (Rh2(suc)4) and its immobilization on lauric acid bilayer-coated maghemite nanoparticles (MGH-2L/Rh2(suc)4) and subsequent adsorption with bovine serum albumin (MGH-2L/Rh2(suc)4/BSA). Rh2(suc)4 has been characterized by elemental analysis, potentiometric titration, TGA, MS, FTIR and UV-Vis analysis. The maghemite phase was confirmed by XRD, and a diameter of 10 nm was obtained by Sherrer equation. The VSM experiment showed superparamagnetic properties. TEM showed nanoparticles with a spherical shape and a mean diameter of 8.5±0.4 and 9.1 ± 0.4 nm for MGH-2L/Rh2(suc)4 and MGH-2L/Rh2(suc)4/BSA, respectively. FTIR and TGA confirmed the immobilization of Rh2(suc)4 and bovine serum albumin adsorption on superparamagnetic iron oxide. Hydrodynamic size (DH) and zeta potential (ζ) measurements were made in aqueous, NaCl and DMEM media. DH for dispersions was lower in aqueous medium, but increased in saline and DMEM media. In aqueous and saline media, ζ was not altered for MGH-2L and MGH-2L/Rh2(suc)4, but was significantly lower for MGH-2L/Rh2(suc)4/BSA. Therefore, MGH-2L/Rh2(suc)4/BSA was the most stable dispersion, meaning that BSA coating prevents aggregation more than lauric acid bilayer coating. MGH-2L/Rh2(suc)4 and MGH-2L/Rh2(suc)4/BSA dispersions induced cytotoxicity in breast carcinoma (MCF-7) and fibroblast cells in culture, and this effect was higher than that exerted by free Rh2(suc)4 and more specific to breast carcinoma cells than to fibroblasts. Therefore, we suggest that these dispersions have an important potential for future clinical applications and, thus, they should be considered a platform to enhance Rh2(suc)4 cytotoxicity, specifically in breast carcinoma.pt_BR
dc.identifier.citationSILVA, Matheus Oliveira da et al. Development of a promising antitumor compound based on rhodium(ii) succinate associated with iron oxide nanoparticles coated with lauric acid/albumin hybrid: synthesis, colloidal stability and cytotoxic effect in breast carcinoma cells. Journal of Nanoscience and Nanotechnology, [s. l.], v. 18, n. 6, p. 3832-3843, 2018. DOI: 10.1166/jnn.2018.15021. Disponível em: https://www.ingentaconnect.com/content/asp/jnn/2018/00000018/00000006/art00010. Acesso em: 23 jun. 2023.pt_BR
dc.identifier.doi10.1166/jnn.2018.15021
dc.identifier.issn1533-4880
dc.identifier.issne- 1533-4899
dc.identifier.urihttps://www.ingentaconnect.com/content/asp/jnn/2018/00000018/00000006/art00010
dc.language.isoengpt_BR
dc.publisher.countryEstados unidospt_BR
dc.publisher.departmentInstituto de Química - IQ (RMG)pt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectColloidal stabilitypt_BR
dc.subjectDrug delivery systempt_BR
dc.subjectMagnetic drug targetingpt_BR
dc.subjectMammary carcinomapt_BR
dc.subjectRhodium(II) carboxylatespt_BR
dc.titleDevelopment of a promising antitumor compound based on rhodium(ii) succinate associated with iron oxide nanoparticles coated with lauric acid/albumin hybrid: synthesis, colloidal stability and cytotoxic effect in breast carcinoma cellspt_BR
dc.typeArtigopt_BR

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