Optical anisotropy of calcium-induced alginate gels

Yasuyuki Maki, Masako Wakamatsu, Kei Ito, Kazuya Furusawa, Takao Yamamoto, Toshiaki Dobashi

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Alginate gels formed by diffusion of calcium ions into solutions of sodium alginate were found to exhibit optical anisotropy depending on preparation conditions. When observed under crossed nicols, the anisotropic alginate gels showed a birefringence pattern which is characteristic of radial orientation of polymer chains. Calcium alginate gels were prepared from different concentrations of sodium alginate and calcium ion, and the conditions for formation of the anisotropic gels were determined. The gel-formation process was measured by monitoring the development of the birefringent layer and was compared with the model in which the diffusion of calcium ions dominates gel formation.

Original languageEnglish
Pages (from-to)24-28
Number of pages5
JournalJournal of Biorheology
Volume23
Issue number1
DOIs
Publication statusPublished - Dec 1 2009

Fingerprint

Optical anisotropy
Alginate
Calcium
Gels
Sodium alginate
Ions
Birefringence
alginic acid
Polymers
Monitoring

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Maki, Y., Wakamatsu, M., Ito, K., Furusawa, K., Yamamoto, T., & Dobashi, T. (2009). Optical anisotropy of calcium-induced alginate gels. Journal of Biorheology, 23(1), 24-28. https://doi.org/10.1007/s12573-009-0004-1

Optical anisotropy of calcium-induced alginate gels. / Maki, Yasuyuki; Wakamatsu, Masako; Ito, Kei; Furusawa, Kazuya; Yamamoto, Takao; Dobashi, Toshiaki.

In: Journal of Biorheology, Vol. 23, No. 1, 01.12.2009, p. 24-28.

Research output: Contribution to journalArticle

Maki, Y, Wakamatsu, M, Ito, K, Furusawa, K, Yamamoto, T & Dobashi, T 2009, 'Optical anisotropy of calcium-induced alginate gels', Journal of Biorheology, vol. 23, no. 1, pp. 24-28. https://doi.org/10.1007/s12573-009-0004-1
Maki Y, Wakamatsu M, Ito K, Furusawa K, Yamamoto T, Dobashi T. Optical anisotropy of calcium-induced alginate gels. Journal of Biorheology. 2009 Dec 1;23(1):24-28. https://doi.org/10.1007/s12573-009-0004-1
Maki, Yasuyuki ; Wakamatsu, Masako ; Ito, Kei ; Furusawa, Kazuya ; Yamamoto, Takao ; Dobashi, Toshiaki. / Optical anisotropy of calcium-induced alginate gels. In: Journal of Biorheology. 2009 ; Vol. 23, No. 1. pp. 24-28.
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