期刊
ACS NANO
卷 14, 期 3, 页码 3190-3198出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.9b08408
关键词
chirality; lattice sel -assembly; supramolecular chirality; host-guest; circularly polarized luminescence
类别
资金
- National Natural Science Foundation of China [51673050, 91856115, 21773092, 21802026]
- Ministry of Science and Technology of the People's Republic of China [2017YFA0206600, 2016YFA0203400]
- New Hundred Talent Program research fund of the Chinese Academy of Sciences
- Natural Science Foundation of Guangdong Province for Distinguished Young Scholar [2018B030306011]
Biomaterials in nature often exhibit hierarchical chiral structures with an intriguing mechanism involving hierarchical chirality transfer from molecular to supramolecular and the nano- or microscale level. To mimic the cross-level chirality transfer, we present here one kind of host-guest complex system built of beta-cyclodextrin (beta-CD), sodium dodecyl sulfate (SDS), and fluorescent dyes, which show multilevel chirality, including molecular chirality of beta-CD, induced supramolecular chirality of beta-CD/SDS host-guest complexes, a chiral lattice self-assembled nanosheet, mesoscopic chirality of an assembled helical tube, induced chirality of a dye-doped chiral tube. The hierarchical chirality involved a chiral lattice self-assembly process, which can be identified by small-angle X-ray scattering, optical studies, circular dichroism, and circularly polarized luminescence spectral measurements. Benefiting from the chiral lattice self-assembly, intense circularly polarized luminescence was observed from the achiral dye-doped complexes with a large dissymmetry factor up to +0.1. This work thus provides a feasible insight for developing hierarchical chiroptical materials based on the lattice self-assembly.
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