Majumder, Joydeb ; Dastidar, Parthasarathi (2016) An easy access to organic salt-based stimuli-responsive and multifunctional supramolecular hydrogels Chemistry - A European Journal, 22 (27). pp. 9267-9276. ISSN 0947-6539
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/chem.20...
Related URL: http://dx.doi.org/10.1002/chem.201601136
Abstract
By exploiting orthogonal hydrogen bonding involving supramolecular synthons and hydrophobic/hydrophilic interactions, a new series of simple organic salt based hydrogelators derived from pyrene butyric acid and its β-alanine amide derivative, and various primary amines has been achieved. The hydrogels were characterised by microscopy, table-top rheology and dynamic rheology. FTIR, variable-temperature 1H NMR and emission spectroscopy established the role of various supramolecular interactions such as hydrogen bonding and π–π stacking in hydrogelation. Single-crystal X-ray diffraction (SXRD) studies supported the conclusion that orthogonal hydrogen bonding involving amide–amide and primary ammonium monocarboxylate (PAM) synthons indeed played a crucial role in hydrogelation. The hydrogels were found to be stimuli-responsive and were capable of sensing ammonia and adsorbing water-soluble dye (methylene blue). All the hydrogelators were biocompatible (MTT assay in RAW 264.7 cells), indicating their suitability for use in drug delivery.
Item Type: | Article |
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Source: | Copyright of this article belongs to John Wiley & Sons, Inc. |
Keywords: | Dye Adsorption; Gels; Self-Assembly; Sensors; Supramolecular Chemistry |
ID Code: | 112655 |
Deposited On: | 19 Apr 2018 10:27 |
Last Modified: | 19 Apr 2018 10:27 |
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