Setting Behaviors and Ciprofloxacin Hydrochloride Sustained Release of CSH-TCP Binary Cement

Abstract:

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Calcium sulphate hemihydrate/α-tricalcium phosphate (CSH-TCP) cement are promising bone replacement materials with controllable-degradation rate and setting time and excellent delivery matrix for sustained release. In the present study, setting behaviors of binary bone cement composed of α-TCP and CSH and release of ciprofloxacin from this cement were investigated in vitro. XRD and SEM results demonstrated that the setting products of CSH-TCP cement were calcium sulphate dihydrate with pillar morphology and hydroxyapatite with needle morphology. Only 20% ciprofloxacin was released from CSH-TCP cement in 7 days in vitro. Fibers of hydroxyapatite enhanced strength of binary cement through fiber-reinforce mechanism. At initial stage (less than 100 hours), the release of ciprofloxacin from CSH-TCP cement was diffusion control, and at subsequent stage the release was matrix dissolution & diffusion control.

Info:

Periodical:

Key Engineering Materials (Volumes 330-332)

Main Theme:

Edited by:

Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu

Pages:

1017-1020

DOI:

10.4028/www.scientific.net/KEM.330-332.1017

Citation:

D. Zhang et al., "Setting Behaviors and Ciprofloxacin Hydrochloride Sustained Release of CSH-TCP Binary Cement", Key Engineering Materials, Vols. 330-332, pp. 1017-1020, 2007

Online since:

February 2007

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Price:

$35.00

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