title: Mesoscale organization of CuO nanoribbons: formation of "dandelions".
abstract: A two-tiered organizing scheme with multiple-length scales for construction of dandelion-like hollow CuO microspheres has been elucidated: (1) mesoscale formation of rhombic building units from smaller nanoribbons via oriented aggregation and (2) macroscopic organization of these units into the CuO microspheres. This self-assembly concept may also be applicable to other metal oxides by creating geometric constraints for constructional units.
authors.affiliation: Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260.
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
authors.forename: Hua Chun
authors.initials: HC
authors.lastname: Zeng