Production of hydroxyapatite–bacterial cellulose nanocomposites from agroindustrial wastes

In the present work, bionanocomposites based on bacterial cellulose (BC) obtained from alternative sources (cashew juice and sisal liquid waste) and hydroxyapatite (HA) were developed. BC–HA composites were prepared through alternate immersion in CaCl₂ and Na₂HPO₄ solutions. Cellulose was successful...

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Bibliographic Details
Published in:Cellulose (London) 2015-10, Vol.22 (5), p.3177-3187
Main Authors: Duarte, Eden B, das Chagas, Bruna S, Andrade, Fábia K, Brígida, Ana I. S, Borges, Maria F, Muniz, Celli R, Souza Filho, Men de Sá M, Morais, João P. S, Feitosa, Judith P. A, Rosa, Morsyleide F
Format: Article
Language:English
Subjects:
agricultural wastes
Apatite
Biomedical materials
Bioorganic Chemistry
Body fluids
bones
calcium
Calcium chloride
cashew nuts
Cellulose
Ceramics
Chemistry
Chemistry and Materials Science
Composites
crystals
desorption
Glass
Hydroxyapatite
juices
Nanocomposites
Natural Materials
Organic Chemistry
Original Paper
Physical Chemistry
Polymer Sciences
Regeneration
Sisal
Sodium hydrogen phosphate
Submerging
Surgical implants
Sustainable Development
Tissue engineering
tissue repair
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Summary:In the present work, bionanocomposites based on bacterial cellulose (BC) obtained from alternative sources (cashew juice and sisal liquid waste) and hydroxyapatite (HA) were developed. BC–HA composites were prepared through alternate immersion in CaCl₂ and Na₂HPO₄ solutions. Cellulose was successfully produced from the alternative sources of media without the need for additional supplementation and HA crystals that homogeneously precipitated onto the BC surface. The Ca/P ratio ranged from 1.53 to 1.58, indicating the presence of calcium-deficient HA in the composites; this is a phase similar to biological apatite. After immersion into synthetic body fluid, the HA layer formed on the surface of pure BC and the composites, attesting the material’s bioactivity. Moreover, apatite deposition on the composites was up to three times higher than observed on pure cellulose with no significant desorption of apatite from the composites. These results support that the BC derived from agroindustrial wastes have potential to produce nanocomposites of cellulose/HA for use in bone tissue regeneration.
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-015-0734-8