Rigid Hydroxyapatite-Alginate Beads for Sustained Release of Paclitaxel


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Rigid hydroxyapatite (HAp)-alginate beads were prepared as drug delivery carriers for an anti-cancer drug, paclitaxel (Taxol). Paclitaxel was loaded into the HAp microparticle in process of a spray-drying technique. The HAp-alginate beads including paclitaxel were obtained by a droplet method into barium solution as ionic cross-linkage and dehydration. Cross-sectional analyses indicated the homogeneity of HAp microparticles and barium ions inside the bead. The ratio of alginate to HAp in the beads dominated both mechanical and swelling properties. Drug-release experiment demonstrated the sustained release of paclitaxel from the beads cross-linked with barium ion for 7 days.



Key Engineering Materials (Volumes 361-363)

Main Theme:

Edited by:

Guy Daculsi and Pierre Layrolle




T. Ikoma et al., "Rigid Hydroxyapatite-Alginate Beads for Sustained Release of Paclitaxel", Key Engineering Materials, Vols. 361-363, pp. 535-538, 2008

Online since:

November 2007




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[5] S. Nsereko and M. Amiji, (2002) Biomaterials 23: 2723-2731. Fig. 2 Swelling ratio of the HAp-alginate beads cross- linked with barium ion. Fig. 3 Cumulative release of paclitaxel from the HAp-alginate beads cross-linked with barium ion.

DOI: https://doi.org/10.1051/e3sconf/20130141024

[20] [15] [10] [5] [0] Swelling ratio 120100806040200 Incubation time / h A3H05-Ba A1H05-Ba A1H40-Ba.

[25] [20] [15] [10] [5] [0] Cumulative release / µg 200 150 100.

[50] [0] Incubation time / h A1H05-Ba A3H05-Ba A1H20-Ba.