TY - JOUR
T1 - Synthesis of nanosized carbonated apatite by a modified Pechini method
T2 - Hydroxyapatite nucleation from a polymeric matrix
AU - Vargas-Becerril, N.
AU - Téllez-Jurado, L.
AU - Reyes-Gasga, J.
AU - Alvarez-Perez, M. A.
AU - Rodríguez-Lorenzo, L. M.
N1 - Publisher Copyright:
© Springer Science+Business Media New York 2014.
PY - 2014/12
Y1 - 2014/12
N2 - Pechini method is a materials synthesis method based on the preparation of a polymeric matrix. The advantage of this method is the ability to obtain materials with different particle sizes depending on the synthesis condition with a homogeneous distribution. In this work, carbonated hydroxyapatite (c-OHAp) nanoparticles were obtained by a modified Pechini method. To obtain the polymeric precursor of the c-OHAp, the polymeric matrix was prepared through a polyesterification reaction between citric acid and ethylene-glycol. Adding calcium hydroxide and ortophosphoric acid in aqueous solutions, raising the temperature up to 140 °C/2 h and keeping constant the pH at 8. The polymeric matrix was calcinated at different ranges of temperature from 200 to 600 °C in order to obtain the c-OHAp powder. The results show the presence of c-OHAp a as unique phase. The thermal analysis indicates that the c-OHAp phase was obtained at 600 °C. The particle size of the obtained material was<50 nm.
AB - Pechini method is a materials synthesis method based on the preparation of a polymeric matrix. The advantage of this method is the ability to obtain materials with different particle sizes depending on the synthesis condition with a homogeneous distribution. In this work, carbonated hydroxyapatite (c-OHAp) nanoparticles were obtained by a modified Pechini method. To obtain the polymeric precursor of the c-OHAp, the polymeric matrix was prepared through a polyesterification reaction between citric acid and ethylene-glycol. Adding calcium hydroxide and ortophosphoric acid in aqueous solutions, raising the temperature up to 140 °C/2 h and keeping constant the pH at 8. The polymeric matrix was calcinated at different ranges of temperature from 200 to 600 °C in order to obtain the c-OHAp powder. The results show the presence of c-OHAp a as unique phase. The thermal analysis indicates that the c-OHAp phase was obtained at 600 °C. The particle size of the obtained material was<50 nm.
KW - Particle size
KW - Pechini method
KW - Polyesterification
KW - Ydroxyapatite
UR - http://www.scopus.com/inward/record.url?scp=85027938863&partnerID=8YFLogxK
U2 - 10.1007/s10971-014-3478-2
DO - 10.1007/s10971-014-3478-2
M3 - Artículo
SN - 0928-0707
VL - 72
SP - 571
EP - 580
JO - Journal of Sol-Gel Science and Technology
JF - Journal of Sol-Gel Science and Technology
IS - 3
ER -