期刊
NANOSCALE
卷 4, 期 1, 页码 224-230出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1nr11151e
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资金
- National Basic Research Program [2009CB930400]
- National Natural Science Foundation of China [21074069, 20874060, 50873058]
- Foundation for the Author of National Excellent Doctoral Dissertation of China
- State Key Laboratory of Supramolecular Structure and Materials [SKLSSM201118]
- Fok Ying Tung Education Foundation [114029]
As inspired from nature's strategy to prepare collagen, herein we report a hierarchical solution self-assembly method to prepare multi-dimensional and multi-scale supra-structures from the building blocks of pristine titanate nanotubes (TNTs) around 10 nm. With the help of amylose, the nanotubes was continuously self-assembled into helically wrapped TNTs, highly aligned fibres, large bundles, 2D crystal facets and 3D core-shell hybrid crystals. The amyloses work as the glue molecules to drive and direct the hierarchical self-assembly process extending from microscopic to macroscopic scale. The whole self-assembly process as well as the self-assembly structures were carefully characterized by the combination methods of H-1 NMR, CD, Hr-SEM, AFM, Hr-TEM, SAED pattern and EDX measurements. A hierarchical self-assembly mechanism was also proposed.
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