Carbon-coated functionalized magnetic nanoparticles for biomedical applications
Fil: Arana, Mercedes. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.
| Main Authors: | , , , |
|---|---|
| Format: | bookPart |
| Language: | eng |
| Published: |
2022
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/11086/29952 |
| _version_ | 1801212817935695872 |
|---|---|
| author | Arana, Mercedes Bercoff, Paula Gabriela Jacobo, Silvia Rodríguez, Marcela Cecilia |
| author_facet | Arana, Mercedes Bercoff, Paula Gabriela Jacobo, Silvia Rodríguez, Marcela Cecilia |
| author_sort | Arana, Mercedes |
| collection | Repositorio Digital Universitario |
| description | Fil: Arana, Mercedes. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. |
| format | bookPart |
| id | rdu-unc.29952 |
| institution | Universidad Nacional de Cordoba |
| language | eng |
| publishDate | 2022 |
| record_format | dspace |
| spelling | rdu-unc.299522022-12-19T17:50:33Z Carbon-coated functionalized magnetic nanoparticles for biomedical applications Arana, Mercedes Bercoff, Paula Gabriela Jacobo, Silvia Rodríguez, Marcela Cecilia Carbon Coatings Magnetic nanoparticles Hydrogen peroxide Biosensor Fil: Arana, Mercedes. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Fil: Arana, Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Bercoff, Paula Gabriela. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Fil: Bercoff, Paula Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Jacobo, Silvia. Universidad de Buenos Aires. Facultad de Ingeniería. Laboratorio de Fisicoquímica de Materiales Cerámicos Electrónicos; Argentina. Fil: Jacobo, Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina Fil: Rodríguez, Marcela Cecilia. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Fisicoquímica; Argentina. Fil: Rodríguez, Marcela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Fisicoquímica de Córdoba; Argentina. Carbon-coated magnetite nanoparticles (NPs) were synthetized by the mechanochemical method with hematite as precursor and amorphous carbon as inorganic reductor. After 18 hours of milling in an inert atmosphere, a nanocomposite material of magnetite and carbon was obtained. Structural and magnetic properties of the NPs were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS) and vibrating sample magnetometry. XRD patterns, refined with the Rietveld method, show that magnetite is present in samples milled from 6 hours onward and that after milling for 18 hours and annealing in Ar, the sample contains a single crystalline phase. Magnetization curves for samples with different milling times show saturation magnetization values that range from 34.1 emu/g after 1 h to 78.0 emu/g after 18 h. Coercive fields are about 500 Oe for all samples. TEM studies reveal that the samples are made of amorphous carbon clusters with magnetite NPs of 20 nm. The obtained NPs, associated to electrochemical transducers, show an improved enhancement of the charge transfer for redox processes involving different bioanalytes. Thus, these NPs offer unique properties as a catalyst in biosensing strategies for the electrochemical detection of high-impact markers and the development of theranostics smart-devices for biomedical applications. http://hdl.handle.net/11086/20502. Fil: Arana, Mercedes. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Fil: Arana, Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Bercoff, Paula Gabriela. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Fil: Bercoff, Paula Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Jacobo, Silvia. Universidad de Buenos Aires. Facultad de Ingeniería. Laboratorio de Fisicoquímica de Materiales Cerámicos Electrónicos; Argentina. Fil: Jacobo, Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina Fil: Rodríguez, Marcela Cecilia. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Fisicoquímica; Argentina. Fil: Rodríguez, Marcela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Fisicoquímica de Córdoba; Argentina. Nano-materiales (producción y propiedades) 2022-12-12T14:20:08Z 2022-12-12T14:20:08Z 2014 bookPart 978-1-63117-434-6 http://hdl.handle.net/11086/29952 eng https://hdl.handle.net/11086/20502 Attribution-NonCommercial-ShareAlike 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/ Impreso |
| spellingShingle | Carbon Coatings Magnetic nanoparticles Hydrogen peroxide Biosensor Arana, Mercedes Bercoff, Paula Gabriela Jacobo, Silvia Rodríguez, Marcela Cecilia Carbon-coated functionalized magnetic nanoparticles for biomedical applications |
| title | Carbon-coated functionalized magnetic nanoparticles for biomedical applications |
| title_full | Carbon-coated functionalized magnetic nanoparticles for biomedical applications |
| title_fullStr | Carbon-coated functionalized magnetic nanoparticles for biomedical applications |
| title_full_unstemmed | Carbon-coated functionalized magnetic nanoparticles for biomedical applications |
| title_short | Carbon-coated functionalized magnetic nanoparticles for biomedical applications |
| title_sort | carbon coated functionalized magnetic nanoparticles for biomedical applications |
| topic | Carbon Coatings Magnetic nanoparticles Hydrogen peroxide Biosensor |
| url | http://hdl.handle.net/11086/29952 |
| work_keys_str_mv | AT aranamercedes carboncoatedfunctionalizedmagneticnanoparticlesforbiomedicalapplications AT bercoffpaulagabriela carboncoatedfunctionalizedmagneticnanoparticlesforbiomedicalapplications AT jacobosilvia carboncoatedfunctionalizedmagneticnanoparticlesforbiomedicalapplications AT rodriguezmarcelacecilia carboncoatedfunctionalizedmagneticnanoparticlesforbiomedicalapplications |