A ligand-chirality controlled supramolecular hydrogel.
@article{Shen2010ALC,
title={A ligand-chirality controlled supramolecular hydrogel.},
author={Jiangshan Shen and Guojuan Mao and Yuhua Zhou and Yun‐Bao Jiang and Hong-Wu Zhang},
journal={Dalton transactions},
year={2010},
volume={39 30},
pages={
7054-8
}
}We report a novel example of ligand-chirality finely controlled in situ supramolecular hydrogel formation based on the coordination of phenylalanine (Phe) to Cu(II) with higher selectivity over other metal ions. As decreasing both enantiomeric excesses (ee%) of ligand Phe towards its D- and L-forms, the gelation ability of Phe-Cu(II) supramolecular metallogelator was found to be weakened and eventually disappeared, which likely resulted from the stereoselectivity of the ligand Phe…
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References
SHOWING 1-10 OF 67 REFERENCES
Structural characterization and chemical response of a Ag-coordinated supramolecular gel.
- Materials Science, ChemistryLangmuir : the ACS journal of surfaces and colloids
- 2007
Of interest is that the organogel exhibits a 3-D network structure of a beltlike fiber composed of ordered lamellar arrangements of the coordinated complex and shows a rapid response to wide chemical stimulations such as anions I-, Br-, and Cl-, gases such as H(2)S and NH(3), and a change of pH.
Chirality control of self-assembling organogels from a lipophilic L-glutamide derivative with metal chlorides
- Chemistry
- 2002
A double-chain alkyl lipid with an isoquinoline-containing headgroup was derived from l-glutamide. This worked as an organogelator in benzene, cyclohexane, a cyclohexanes−ethanol mixture, and so…
Highly selective iodide-responsive gel–sol state transition in supramolecular hydrogels
- Materials Science, Biology
- 2009
We demonstrate for the first time a highly selective anion-responsive reversible gel–sol state transition in a supramolecular hydrogel of Ag(I)-glutathione (GSH) coordination polymers, which allows…
Influence of counteranion on the chiral supramolecular assembly of alkynylplatinum(II) terpyridyl metallogels that are stabilised by Pt...Pt and pi-pi interactions.
- Chemistry, Materials ScienceChemistry
- 2009
A series of luminescent chiral alkynylplatinum(II)-terpyridyl complexes has been successfully synthesised and shown to be capable of forming metallogels that show helical fibrous nanostructures.
A chiral low-molecular-weight gelator based on binaphthalene with two urea moieties: modulation of the CD spectrum after gel formation.
- Chemistry, Materials ScienceLangmuir : the ACS journal of surfaces and colloids
- 2007
The synthesis and characterization of a new chiral LMWG 1 based on the axially chiral binaphthalene with two urea moieties and it was demonstrated that the gel phase could be destroyed by addition of F- due to the disruption of intermolecular H-bonds.
Anion-tuning of supramolecular gel properties
- Materials ScienceNature Chemistry
- 2009
Small anions can be used to modulate the physical properties of supramolecular gels by interacting with the low-molecular-weight gelators from which such materials are composed, and a better understanding will aid in the rational design of responsive gels that may prove useful for a number of practical applications.
Fluorescent magnesium(II) coordination polymeric hydrogel.
- Materials Science, EngineeringChemistry
- 2008
A pH and mechano-responsive coordination polymeric gel was developed without the use of long chain hydrophobic groups and may find utility as a novel soft material in biomedical applications and viscoelastic properties and biocompatibility.
Stimuli responsive self-assembled hydrogel of a low molecular weight free dipeptide with potential for tunable drug delivery.
- Biology, Materials ScienceBiomacromolecules
- 2008
The self-assembly of a proteolysis resistant aromatic dipeptide containing a conformational constraining residue (DeltaPhe) into a stable hydrogel that showed no observable cytotoxicity to the HeLa and L929 cell lines in culture is studied.
From chiral counterions to twisted membranes.
- Chemistry, BiologyJournal of the American Chemical Society
- 2002
This work demonstrates that the mechanism of the chiral induction by counterions involves specific anion-cation recognition and the induction of conformationally labile chirality in the cations and provides a general framework for designing new tunable membrane systems.
A new pH and thermo-responsive chiral hydrogel for stimulated release.
- Chemistry, Materials ScienceThe journal of physical chemistry. B
- 2007
The presence and the relative configuration of the stereogenic centers in the structure of this low molecular weight gelator have been observed to be critical to form gels.






