2004年11月
High mechanical strength double-network hydrogel with bacterial cellulose
ADVANCED FUNCTIONAL MATERIALS
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- 巻
- 14
- 号
- 11
- 開始ページ
- 1124
- 終了ページ
- 1128
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1002/adfm.200305197
- 出版者・発行元
- WILEY-V C H VERLAG GMBH
Double-network (DN) hydrogels with high mechanical strength have been synthesized using the natural polymers bacterial cellulose (BC) and gelatin. As-prepared BC contains 90% water that can easily be squeezed out, with no more recovery in its swelling property. Gelatin gel is brittle and is easily broken into fragments under a modest compression. In contrast, the fracture strength and elastic modulus of a BC-gelatin DN gel under compressive stress are on the order of megapascals, which are several orders of magnitude higher than those of gelatin gel, and almost equivalent to those of articular cartilage. A similar enhancement in the mechanical strength was also observed for the combination of BC with polysaccharides, such as sodium alginate, gellan gum, and i-carrageenan.
- リンク情報
- ID情報
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- DOI : 10.1002/adfm.200305197
- ISSN : 1616-301X
- Web of Science ID : WOS:000225507100013