Freestanding organogels by molecular velcro of unsaturated amphiphiles
| Autor: | George John, Padmanava Pradhan, Malick Samateh, Sitakanta Satapathy, Leela Rakesh, Vijai Shankar Balachandran, Kizhmuri P. Divya, Srinivasa R. Raghavan, Sai Sateesh Sagiri, Shashi P. Karna, Michael S. Sellers |
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| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Degree of unsaturation 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Micelle 0104 chemical sciences chemistry.chemical_compound Monomer chemistry Polymerization Amide Amphiphile Polymer chemistry Side chain 0210 nano-technology Alkyl |
| Zdroj: | Soft matter. 15(31) |
| ISSN: | 1744-6848 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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