摘要:
                                Multichannel microtubules (MMTs) of, 1 mm in the aperture diameter and, 10 mm in length have been fabricated via the self-assembly of a series of pyridine-based macrocyclic compounds synthesised by a simple condensation reaction of di(chlorocarbonyl) pyridine and diamine derivatives. The resulting MMTs bearing multiple pyridyl carboxamide groups provide an efficient host to bind heavy metal ions in water. The detailed self-assembly process to fabricate the MMT is demonstrated together with their adsorption capability for heavy metal ions such as Cu2+, Ni2+ and Zn2+ in the aqueous solution.