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Programmed Hierarchical Hybrid Nanostructures from Fullerene‐Dendrons and Pyrene‐Dendrons
Author(s) -
Park Minwook,
Kang DongGue,
Yoon WonJin,
Choi YuJin,
Koo Jahyeon,
Lim SeokIn,
Jeong KwangUn
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201803291
Subject(s) - dendrimer , materials science , nanostructure , fullerene , supramolecular chemistry , bilayer , nanotechnology , amphiphile , molecule , self assembly , copolymer , chemistry , polymer chemistry , polymer , organic chemistry , membrane , biochemistry , composite material
The construction of fullerene (C 60 ) hierarchical nanostructures with the help of amphiphilic molecules remains a challenging task in nanoscience and nanotechnology. Utilizing the host–guest complex concept, sub‐10 nm layered superstructures are constructed from a monofunctionalized C 60 dendron (C 60 D, guest) and tweezer‐like pyrene dendron (PD, host). Since C 60 D and PD are asymmetric shape amphiphiles having liquid crystal (LC) dendrons, both C 60 D and PD construct head‐to‐head bilayer superstructures by themselves. From fluorescence titration experiments, it is realized that the host–guest complex shows 1:1 stoichiometric binding with a binding constant ( K sv = 2.45 × 10 5 m −1 ). Based on the morphological observations and scattering analyses, it is found that buckle‐like asymmetric building blocks (C 60 D·PD) are self‐assembled by the host–guest complex and construct multilayer hybrid nanostructures. The hierarchical hybrid nanostructures consist of the self‐assembled C 60 D·PD bilayer with a 2D C 60 ·P nanoarray sandwiched between LC dendrons. This advanced strategy is expected to be a practicable and rational guideline for the fabrication of programmed hierarchical hybrid nanostructures.