Characterization of structure and diffusion behaviour of Ca-alginate beads prepared with external or internal calcium sources

  • Liu X
  • Yu W
  • Zhang Y
 et al. 
  • 70

    Readers

    Mendeley users who have this article in their library.
  • 95

    Citations

    Citations of this article.

Abstract

Ca-alginate beads were prepared with either external or internal calcium sources. The structures of both beads were investigated with the aid of scanning electron microscopy (SEM) and confocal microscopy. It was shown that the beads with internal calcium source had a looser structure and bigger pore size than those with external calcium source. The attempts to interpret the difference were carried out by determining the Ca content within the beads at various times, which indicated that it was the different gelation mechanisms that caused the difference of structures of both beads. Furthermore, it was also found that the diffusion rate of haemoglobin (Hb) within the beads with an internal calcium source was faster than that of the beads with an external one, which was consistent with the observation of their structures.

Author-supplied keywords

  • Ca-alginate bead
  • Diffusion behaviour
  • External gelation
  • Internal gelation
  • Microcapsules

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • X. D. Liu

  • W. Y. Yu

  • Y. Zhang

  • W. M. Xue

  • W. T. Yu

  • Y. Xiong

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free