期刊
NANO-MICRO LETTERS
卷 10, 期 3, 页码 -出版社
SHANGHAI JIAO TONG UNIV PRESS
DOI: 10.1007/s40820-018-0195-3
关键词
Bacterial cellulose; Nanocomposite; Graphene oxide; Biosynthesis; Nanofiber; Hydrogels
资金
- National Natural Science Foundation of China [51572187, 51563008, 51662009, 31660264]
- Provincial Natural Science Foundation of Jiangxi [20161BAB206149]
- Key Project of Natural Science Foundation of Jiangxi Province [20161ACB20018]
Uniform dispersion of two-dimensional (2D) graphene materials in polymer matrices remains challenging. In this work, a novel layer-by-layer assembly strategy was developed to prepare a sophisticated nanostructure with highly dispersed 2D graphene oxide in a three-dimensional matrix consisting of one-dimensional bacterial cellulose (BC) nanofibers. This method is a breakthrough, with respect to the conventional static culture method for BC that involves multiple in situ layer-by-layer assembly steps at the interface between previously grown BC and the culture medium. In the as-prepared BC/GO nanocomposites, the GO nanosheets are mechanically bundled and chemically bonded with BC nanofibers via hydrogen bonding, forming an intriguing nanostructure. The sophisticated nanostructure of the BC/GO leads to greatly enhanced mechanical properties compared to those of bare BC. This strategy is versatile, facile, scalable, and can be promising for the development of high-performance BC-based nanocomposite hydrogels.
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