Effects of Calcium and Alginate Concentration on the Calcium-Deficient Hydroxyapatite Hydrogel Bead Formation
Key Engineering Materials
The preparation of calcium-deficient hydroxyapatite (CDHAp) beads via immobilization in
Ca-alginate hydrogel was studied in current research. CDHAp beads of different shapes were prepared by dropwise adding of aqueous CDHAp/Na-alginate suspension to an aqueous and ethanolic Ca(NO3)2 solutions. The alginate cross-linking rate was modeled via gelling boundary migration experiment. Prepared beads were washed with deionized water and dried. The beads had lost up to 30% of the diameter comparing to the original after drying (24h, 60C).
alginate, hydrogel, hydroxyapatite, solvents, bead shape
Bušs, A., Ločs, J. Effects of Calcium and Alginate Concentration on the Calcium-Deficient Hydroxyapatite Hydrogel Bead Formation. In: Key Engineering Materials, Latvia, Riga, 3-4 November, 2016. Switzerland: Trans Tech Publications, 2017, pp.187-191. ISSN 1013-9826. e-ISSN 1662-9795. Available from: doi:10.4028/www.scientific.net/KEM.721.187