摘要
Due to hollow structures with inner and outer active surface, nanotubes are becoming highly attractive functional nanomaterials which can be used in the following fields, like sensors, catalysis, field emission and energy storage[1;2].By combining the unique tubular structure with magnetic property, magnetic nanotubes can further broaden their applications in some specific fields, such as targeting drug and enzyme delivery with magnetic resonance imaging (MRI) capability in biomedicine and biotechnology[3].
