ICCAS OpenIR
Water inversed helicity of nanostructures from ionic self-assembly of a chiral gelator and an achiral component
Liu, Changxia; Yang, Dong; Zhang, Li; Liu, Minghua
2019-08-28
Source PublicationSOFT MATTER
ISSN1744-683X
Volume15Issue:32Pages:6557-6563
AbstractThe ionic self-assemblies (ISAs) formed by a cationic chiral organogelator (l-glutamide amphiphile, abbreviated as PULG) and anionic dyes exhibited helical nanostructures. And the formed helical structures can be tuned by water amount in the ethanol/water solvent. In pure ethanol, the chirality of the gelator was successfully transferred to the achiral components, which was confirmed by the appearance of an induced CD signal in the achiral components. Meanwhile, the electrostatic interaction between the gelator and achiral dyes contributed to the chirality amplification, causing the nanofibrous structures of the gelator to be transformed to uniform left-handed helices. Upon adding water to ethanol, the induced CD signal exhibited inversion from positive to negative. Interestingly, the left-handed helices formed by ISA of PULG/anionic dyes in ethanol were inverted to right-handed helices with the addition of water. Based on detailed investigations of the XRD patterns, CD and UV/Vis spectra, the mechanism of helicity inversion was proposed: left-handed helices were dominated by hydrogen bonding and right-handed helices were dominated by pi-pi stacking. This work exemplifies a feasible method to invert the helicity of chiral nanostructures in co-assembly and gives an insight into the conformation change of biomacromolecules in a biological system.
DOI10.1039/c9sm01176e
Indexed BySCI
Language英语
WOS IDWOS:000481424100010
EI Accession Number1744-6848
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82633
Collection中国科学院化学研究所
AffiliationChinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Liu, Changxia,Yang, Dong,Zhang, Li,et al. Water inversed helicity of nanostructures from ionic self-assembly of a chiral gelator and an achiral component[J]. SOFT MATTER,2019,15(32):6557-6563.
APA Liu, Changxia,Yang, Dong,Zhang, Li,&Liu, Minghua.(2019).Water inversed helicity of nanostructures from ionic self-assembly of a chiral gelator and an achiral component.SOFT MATTER,15(32),6557-6563.
MLA Liu, Changxia,et al."Water inversed helicity of nanostructures from ionic self-assembly of a chiral gelator and an achiral component".SOFT MATTER 15.32(2019):6557-6563.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Changxia]'s Articles
[Yang, Dong]'s Articles
[Zhang, Li]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Changxia]'s Articles
[Yang, Dong]'s Articles
[Zhang, Li]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Changxia]'s Articles
[Yang, Dong]'s Articles
[Zhang, Li]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.