Smart designing of new hybrid materials based on brushite-alginate and monetite-alginate microspheres: Bio-inspired for sequential nucleation and growth

Walid Amer 1 Karima Abdelouahdi 2 Hugo Ronald Ramananarivo 1 Aziz Fihri 1 Mounir El Achaby 1 Mohamed Zahouily 3 Abdellatif Barakat 4 Kamal Djessas 5 James Clark 6 Abderrahim Solhy 1
1 Moroccan Foundation for Advanced Science, Innovation and Research (MASCIR)
2 CNRST - Centre National de la Recherche Scientifique et Technologique
3 LMaCaVa - Laboratoire de Matériaux, Catalyse & Valorisation des Ressources Naturelles URAC 24
4 UMR IATE - Ingénierie des Agro-polymères et Technologies Émergentes
5 PROMES - Procédés, Matériaux et Energie Solaire
6 GCCE - Green Chemistry Centre of Excellence
Abstract : In this report new hybrid materials based on brushite-alginate and monetite-alginate were prepared by self-assembling alginate chains and phosphate source ions via a gelation process with calcium ions. The alginate served as nanoreactor for nucleation and growth of brushite or/and monetite due to its gelling and swelling properties. The alginate gel framework, the crystalline phase and morphology of formed hybrid biomaterials were shown to be strongly dependent upon the concentration of the phosphate precursors. These materials were characterized by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive x-ray analysis (EDX).
Keywords : Hybrid materials Biopolymers Alginate Phosphates Brushite Monetite
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CIRAD | PROMES | AGROPOLIS | INRA | UNIV-PERP | CNRS | BA | UNIV-MONTPELLIER | IATE | MONTPELLIER-SUPAGRO

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Walid Amer, Karima Abdelouahdi, Hugo Ronald Ramananarivo, Aziz Fihri, Mounir El Achaby, et al.. Smart designing of new hybrid materials based on brushite-alginate and monetite-alginate microspheres: Bio-inspired for sequential nucleation and growth. Materials Science and Engineering: C, Elsevier, 2014, 35, pp.341-346. ⟨10.1016/j.msec.2013.11.012⟩. ⟨hal-01176910⟩

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