Behavior of enclosed sol- and gel-alginates in vivo

Shinji Sakai, Tsutomu Ono, Hiroyuki Ijima, Koei Kawakami

研究成果: Contribution to journalArticle

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Changes in the behavior of alginates, both non-gelled and gelled with calcium ions, in microcapsules after implantation in vivo were investigated using alginates enclosed in regenerated cellulose membrane. The mechanical properties of the alginates after soaking in simulated body fluid (SBF) and implantation in the peritoneal cavities of animals were determined. A stress-compression study on specimens soaked in SBF showed that the alginates in the microcapsules would have almost the same mechanical properties after several days of implantation independent of whether the enclosed alginate was non-gelled or gelled with calcium ions before implantation. The stresses at a particular compression point decreased with increasing incubation period for 3-6 days for the alginates gelled with calcium ions before soaking in SBF. In contrast, these values increased over the same period for the non-gelled alginates before soaking in SBF. In agreement with the results of the in vitro study, no significant differences were observed between the mechanical properties of the non-gelled and gelled alginates retrieved from the peritoneal cavities of DDY mice after 1 week of implantation.

元の言語英語
ページ(範囲)19-24
ページ数6
ジャーナルBiochemical Engineering Journal
22
発行部数1
DOI
出版物ステータス出版済み - 12 1 2004

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Environmental Engineering
  • Bioengineering
  • Biomedical Engineering

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