Multifold curdlan gel formation by dialysis into aqueous solutions of metal salts期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Multifold curdlan gel formation by dialysis into aqueous solutions of metal salts

Authors:	Masumi?Sato,Masahiro?Nobe,Toshiaki?Dobashi author-information" > author-information__contact u-icon-before" > mailto:dobashi@bce.gunma-u.ac.jp" title=" dobashi@bce.gunma-u.ac.jp" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Takao?Yamamoto,Akira?Konno

Affiliation:	(1) Department of Biological and Chemical Engineering, Faculty of Engineering, Gunma University, 376-8515 Kiryu, Gunma, Japan;(2) Department of Physics, Faculty of Enginnering, Gunma University, 376-8515 Kiryu, Gunma, Japan;(3) Department of Food and Nutrition, Faculty of Human Life Sciences, Senri Kinran University, 563-0873 Suita, Osaka, Japan

Abstract:	We have found that the dialysis of curdlan dissolved in alkaline solution into aqueous solutions of metal salts yielded multifold gel structures. Aqueous sodium chloride and potassium chloride as well as pure water induced isotropic gels. Aqueous calcium salts induced liquid crystalline gel with refractive index gradient/amorphous gel alternative structure. Aqueous salts of trivalent aluminum and ferric cations induced a rigid liquid crystalline gel, which shrank above a threshold concentration of each salt. On the other hand, Liesegang ring-like pattern was observed with aqueous solutions of mixed salts of calcium chloride and magnesium chloride. The patterns have been classified to discuss the mechanism of forming the variety of structures.

Keywords:	Curdlan Liquid crystalline gel Refractive index gradient Liesegang ring Dialysis
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