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 language | English |
|---|---|
| Pages (from-to) | 24-28 |
| Number of pages | 5 |
| Journal | Journal of Biorheology |
| Volume | 23 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Dec 1 2009 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
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 journal › Article
}
TY - JOUR
T1 - Optical anisotropy of calcium-induced alginate gels
AU - Maki, Yasuyuki
AU - Wakamatsu, Masako
AU - Ito, Kei
AU - Furusawa, Kazuya
AU - Yamamoto, Takao
AU - Dobashi, Toshiaki
PY - 2009/12/1
Y1 - 2009/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=77952242753&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77952242753&partnerID=8YFLogxK
U2 - 10.1007/s12573-009-0004-1
DO - 10.1007/s12573-009-0004-1
M3 - Article
AN - SCOPUS:77952242753
VL - 23
SP - 24
EP - 28
JO - Journal of Biorheology
JF - Journal of Biorheology
SN - 1867-0466
IS - 1
ER -