Freestanding organogels by molecular velcro of unsaturated amphiphiles

A simple amphiphile, N -cardanyltaurine amide (NCT) with different degrees of cis -unsaturation in its tail resulted in the formation of strong organogels. Interestingly, this is in contrast to the commonly accepted notion that introducing unsaturation in alkyl chains enhances fluidity in lipid asse...

Full description

Saved in:
Bibliographic Details
Published in:Soft matter 2019-08, Vol.15 (31), p.6263-6268
Main Authors: Balachandran, Vijai Shankar, Divya, Kizhmuri P, Samateh, Malick, Sagiri, Sai S, Satapathy, Sitakanta, Pradhan, Padmanava, Raghavan, Srinivasa R, Rakesh, Leela, Sellers, Michael S, Karna, Shashi P, John, George
Format: Article
Language:English
Subjects:
Computer applications
Computer simulation
Crosslinking
Fasteners
First principles
Fluidity
Gelation
Hydrophobicity
Lipids
Micelles
Monomers
NMR
Nuclear magnetic resonance
Organic chemistry
Rheological properties
Rheology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A simple amphiphile, N -cardanyltaurine amide (NCT) with different degrees of cis -unsaturation in its tail resulted in the formation of strong organogels. Interestingly, this is in contrast to the commonly accepted notion that introducing unsaturation in alkyl chains enhances fluidity in lipid assemblies. The physico-chemical and first-principles DFT calculations confirmed the pegging of 'kinked' unsaturated side chains, where the hydrophobic interlocking as in Velcro fasteners leads to a network of cylindrical micelles, resulting in self-standing organogels. Textural profile analysis and spectroscopic details substantiated the dynamic assembly to resemble a 3D network of gelators rather than being a cross-linked or polymerized matrix of monomers. Gelation of amphiphiles due to the formation of networks of cylindrical chains of reverse micelles is observed.
ISSN:1744-683X
1744-6848
DOI:10.1039/c9sm00378a