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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Putty-like bone fillers based on CaP ceramics or Biosilicate (R) combined with carboxymethylcellulose: Characterization, optimization, and evaluation

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Gabbai-Armelin, Paulo R. ; Renno, Ana C. M. ; Crovace, Murilo C. ; Magri, Angela M. P. ; Zanotto, Edgar D. ; Peitl, Oscar ; Leeuwenburgh, Sander C. G. ; Jansen, John A. ; van den Beucken, Jeroen J. J. P.
Total Authors: 9
Document type: Journal article
Source: JOURNAL OF BIOMATERIALS APPLICATIONS; v. 32, n. 2, p. 276-288, AUG 2017.
Web of Science Citations: 1

Calcium phosphates and bioactive glass ceramics have been considered promising biomaterials for use in surgeries. However, their moldability should be further enhanced. We here thereby report the handling, physicochemical features, and morphological characteristics of formulations consisting of carboxymethylcellulose-glycerol and hydroxyapatite-tricalcium phosphate or Biosilicate (R) particles. We hypothesized that combining either material with carboxymethylcellulose-glycerol would improve handling properties, retaining their bioactivity. In addition to scanning electron microscopy, cohesion, mineralization, pH, and viscoelastic properties of the novel formulations, cell culture experiments were performed to evaluate the cytotoxicity and cell proliferation. Putty-like formulations were obtained with improved cohesion and moldability. Remarkably, mineralization in simulated body fluid of hydroxyapatite-tricalcium phosphate/carboxymethylcellulose-glycerol formulations was enhanced compared to pure hydroxyapatite-tricalcium phosphate. Cell experiments showed that all formulations were noncytotoxic and that HA-TCP60 and BGC50 extracts led to an increased cell proliferation. We conclude that combining carboxymethylcellulose-glycerol with either hydroxyapatite-tricalcium phosphate or Biosilicate (R) allows for the generation of moldable putties, improves handling properties, and retains the ceramic bioactivity. (AU)

FAPESP's process: 15/20704-8 - Performance of bioglass/collagen/magnesium composites in bone repair of rats
Grantee:Paulo Roberto Gabbai Armelin
Support type: Scholarships in Brazil - Post-Doctorate