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Orientador(es)
Resumo(s)
The recovery of valuable compounds from byproducts is at present a priority
topic for social, environmental, and economic reasons. In this work we report for
the first time the preparation of luminescent calcium phosphate (CaP) bioceramics
from waste codfish bones. Codfish bones were treated in aqueous Eu(NO
3
)
3
solu-
tions of different concentrations, followed by thermal treatment at either 700°Cor
1100°C. The resulting materials consisted of hydroxyapatite (HAp), b-tricalcium
phosphate (b-TCP) and a small amount of Eu
2
O
3
. Chemical and structural charac-
terization showed that the Eu ions were successfully introduced into the bones
and, hence, in the thermally treated CaP phases obtained from them, although
mainly in the b-TCP lattice. Photol uminescence investigatio n revealed that all the
materials are luminescent, with samples treated at 1100°C having more intense
luminescence than those prepared at 700°C. In vitro evaluation of cell-materials
interaction indicated that all the samples displayed good cytocompatibility toward
osteoblast cells. This work demonstrates that a simple and effective process,
employing Eu as a dopant, can convert fish industry byproducts into highly valu-
able luminescent CaP bioceramics, having potential applications in biology and
medicine for bio-imaging
Descrição
Palavras-chave
B-tricalcium Phosphate Calcium phosphates Europium Luminescence Waste valorisation
Contexto Educativo
Citação
Piccirillo, C., Adamiano, A., Tobaldi, D. M., Montalti, M., Manzi, J., Castro, P. M. L., . . . Iafisco, M. (2017). Luminescent calcium phosphate bioceramics doped with europium derived from fish industry byproducts. Journal of the American Ceramic Society, 100(8), 3402-3414
Editora
Wiley