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Characterization and mechanism study of micrometer-sized secondary assembly of beta-cyclodextrin
He, Yifeng; Shen, Xinghai; Chen, Qingde; Gao, Hongcheng
2011
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN1463-9076
Volume13Issue:2Pages:447-452
AbstractWe herein report a beta-cyclodextrin-based secondary assembly (beta-CD SA) obtained from an aqueous solution. It was found that the addition of a very small amount of organic molecule 2-phenyl-5-(4-diphenylyl) 1,3,4-oxadiazole (PBD) into an aqueous solution of 10 mM beta-CD led to the formation of a micrometer-sized rodlike SA, which made the mixture turbid immediately. After careful characterization, the structure and the formation mechanism of the beta-CD SA were suggested. PBD first induces beta-CDs to form rigid nanotubes through head-to-head or tail-to-tail routes. Using the "solid" nanotubes as recrystallization centers, other beta-CDs assembled to channel in the c axis direction and hexagonally aligned in the b axis direction, leading to the formation of a beta-CD SA. In the beta-CD SA, most of the beta-CDs were not occupied by PBD. In the course of formation, intermolecular hydrogen-bonding plays a prominent role. The results reported herein would be helpful in constructing cyclodextrin-based architectures in water.
DOI10.1039/c0cp00899k
Indexed BySCI
Language英语
WOS IDWOS:000285390400011
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72200
Collection中国科学院化学研究所
Corresponding AuthorShen, Xinghai
AffiliationPeking Univ, Radiochem & Radiat Chem Key Lab Fundamental Sci, BNLMS, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
He, Yifeng,Shen, Xinghai,Chen, Qingde,et al. Characterization and mechanism study of micrometer-sized secondary assembly of beta-cyclodextrin[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2011,13(2):447-452.
APA He, Yifeng,Shen, Xinghai,Chen, Qingde,&Gao, Hongcheng.(2011).Characterization and mechanism study of micrometer-sized secondary assembly of beta-cyclodextrin.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,13(2),447-452.
MLA He, Yifeng,et al."Characterization and mechanism study of micrometer-sized secondary assembly of beta-cyclodextrin".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 13.2(2011):447-452.
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