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Abstract:

Free standing hierarchical bioglass scaffolds were prepared by the ISISA (ice-segregation-induced self-assembly) method. Commercial low-cost precursors such as Ludox® HS-40 and cow milk were employed as the source of SiO2 and biominerals (Ca(ii), P(v), Na(i) and K(i)), respectively. Then, in a single macroscopic piece, three levels of porosity coexist due to the simultaneous templating effect of ice (macropores), milk (50-200 nm mesopores) and the voids left between preformed Ludox® nano building blocks (2-5 nm mesopores). These low cost and green biological nanotemplates, coupled with the ISISA texturing method, allows the preparation of free standing bioglass monoliths, with hierarchical porosity. The effect of the main preparative variables on the final texture is explored; in vitro biomineralization revealed a well-distributed hydroxyapatite-like nanoparticulated layer within 24 h of exposure to a simulated body fluid. This journal is © 2015 The Royal Society of Chemistry.

Registro:

Documento: Artículo
Título:Hierarchical bioglass scaffolds: Introducing the "milky way" for templated bioceramics
Autor:Onna, D.; Minaberry, Y.; Jobbágy, M.
Filiación:Laboratorio de Superficies y Materiales Funcionales INQUIMAE-DQIAQF, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pab. II, Buenos Aires, C1428EHA, Argentina
Palabras clave:Biomineralization; Porosity; Scaffolds; Self assembly; Bioglass scaffolds; Hierarchical porosity; Ice segregation induced self assemblies; Low-cost precursor; Nanobuilding blocks; Nanotemplates; Simulated body fluids; Templating effects; Bioceramics
Año:2015
Volumen:3
Número:15
Página de inicio:2971
Página de fin:2977
DOI: http://dx.doi.org/10.1039/c5tb00138b
Título revista:Journal of Materials Chemistry B
Título revista abreviado:J. Mater. Chem. B
ISSN:20507518
CODEN:JMCBD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20507518_v3_n15_p2971_Onna

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Citas:

---------- APA ----------
Onna, D., Minaberry, Y. & Jobbágy, M. (2015) . Hierarchical bioglass scaffolds: Introducing the "milky way" for templated bioceramics. Journal of Materials Chemistry B, 3(15), 2971-2977.
http://dx.doi.org/10.1039/c5tb00138b
---------- CHICAGO ----------
Onna, D., Minaberry, Y., Jobbágy, M. "Hierarchical bioglass scaffolds: Introducing the "milky way" for templated bioceramics" . Journal of Materials Chemistry B 3, no. 15 (2015) : 2971-2977.
http://dx.doi.org/10.1039/c5tb00138b
---------- MLA ----------
Onna, D., Minaberry, Y., Jobbágy, M. "Hierarchical bioglass scaffolds: Introducing the "milky way" for templated bioceramics" . Journal of Materials Chemistry B, vol. 3, no. 15, 2015, pp. 2971-2977.
http://dx.doi.org/10.1039/c5tb00138b
---------- VANCOUVER ----------
Onna, D., Minaberry, Y., Jobbágy, M. Hierarchical bioglass scaffolds: Introducing the "milky way" for templated bioceramics. J. Mater. Chem. B. 2015;3(15):2971-2977.
http://dx.doi.org/10.1039/c5tb00138b