Artículo
Urea assisted hydroxyapatite mineralization on MWCNT/CHI scaffolds
Hortigüela, María J.; Gutiérrez, María C.; Aranaz, Inmaculada; Jobbagy, Matias
; Abarrategi, Ander; Moreno Vicente, Carolina; Civantos, Ana; Ramos, Viviana; López Lacomba, José L.; Ferrer, María Laura; del Monte, Francisco
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Fecha de publicación:
12/2008
Editorial:
Royal Society of Chemistry
Revista:
Journal Of Materials Chemistry
ISSN:
0959-9428
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Urea assisted hydroxyapatite (HAp) mineralization was performed on scaffolds composed of a major fraction of multiwall carbon nanotubes (MWCNT, 85 wt.%) and a minor one of chitosan (CHI, 15 wt.%). The MWCNT/CHI scaffolds were synthesized through a cryogenic process (so called ISISA, ice segregation induced self-assembly) that allowed the achievement of macroporous monoliths whose structure resembled a chamber-like architecture in the form of interconnected MWCNT/CHI sheets arranged in parallel layers crossed by pillars. The mineralized architectures were composed of flower like hydroxyapatite (HAp) crystalline clusters of ca. 1 mm, homogeneously distributed throughout the internal surface of the scaffold macrostructure. HAp mineralized MWCNT/CHI scaffolds were characterized by X-ray diffraction (XRD), infrared spectroscopy (FTIR) and scanning and transmission electron microscopy (SEM and TEM, respectively). Calibrated energy dispersion X-ray spectroscopy (EDS) and selected-area electron diffraction (SAED) were also performed in the transmission electron microscope to further HAp characterization. Preliminary in vitro experiments demonstrated the suitability of HAp mineralized MWCNT/CHI scaffolds for bone tissue growth.
Palabras clave:
Urea
,
hydroxyapatite
,
MWCNT
,
scaffolds
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Articulos(INQUIMAE)
Articulos de INST.D/QUIM FIS D/L MATERIALES MEDIOAMB Y ENERGIA
Articulos de INST.D/QUIM FIS D/L MATERIALES MEDIOAMB Y ENERGIA
Citación
Hortigüela, María J.; Gutiérrez, María C.; Aranaz, Inmaculada; Jobbagy, Matias; Abarrategi, Ander; et al.; Urea assisted hydroxyapatite mineralization on MWCNT/CHI scaffolds; Royal Society of Chemistry; Journal Of Materials Chemistry; 18; 48; 12-2008; 5933-5940
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