Liquid‐Crystalline Biomacromolecular Templates for the Formation of Oriented Thin‐Film Hybrids Composed of Ordered Chitin and Alkaline‐Earth Carbonate |
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| Authors: | Dr Tatsuya Nishimura Ken Toyoda Takahiro Ito Dr Yuya Oaki Yukiko Namatame Prof Takashi Kato |
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| Institution: | 1. Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan;2. Application Laboratories, Rigaku Corporation, Matsubara, Akishima-shi, Tokyo, Japan |
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| Abstract: | Macroscopically ordered inorganic thin films have been formed on unidirectionally oriented, liquid‐crystalline chitin matrices. In the presence of poly(acrylic acid) (PAA), unidirectionally oriented chitin films act as templates for the formation of oriented thin‐film crystals of alkaline‐earth carbonates such as SrCO3 and BaCO3. The morphology and orientation of crystals are dependent on the metal ion concentration. For SrCO3 crystallization, unidirectional thin films and hexagonal‐shaped thin films have been deposited from 200 and 25 mm concentration strontium solutions, respectively. |
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| Keywords: | alkaline-earth carbonate biomineralization chitin hybrids liquid crystals |
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