Chakraborty, Poulami ; Datta, Hemanta K. ; Biswas, Protap ; Dastidar, Parthasarathi (2021) Supramolecular Synthon Approach in Designing Organic Sulfonates as Supramolecular Gelators: An Easily Accessible Topical Gel with Antibacterial Properties Chemistry of Materials, 33 (7). pp. 2274-2288. ISSN 0897-4756
Full text not available from this repository.
Official URL: http://doi.org/10.1021/acs.chemmater.0c03973
Related URL: http://dx.doi.org/10.1021/acs.chemmater.0c03973
Abstract
The supramolecular synthon approach in the context of the crystal engineering rationale has been exploited to synthesize a new series of primary ammonium sulfonate salts derived from primary alkyl amines with varying alkyl chain lengths (An = CH3–(CH2)n–NH2; n = 2–11, 13–15, 17) and naphthalene-2-sulfonic acid (N2S) as potential supramolecular gelators. The sulfonate salts AnN2S with n ≥ 9 showed the ability to immobilize a number of polar and nonpolar solvents including dimethyl sulfoxide/water, resulting in supramolecular gels which were characterized by dynamic rheology and transmission electron microscopy. Single-crystal X-ray diffraction studies carried out on eight such salts confirmed the presence of gel-inducing hydrogen bonded supramolecular synthons. Anti-bacterial studies (zone inhibition, turbidity, and tetrazolium assays) revealed that the salt A14N2S had the ability to kill the Gram-positive bacterium Staphylococcus aureus. Laser scanning confocal microscopy and flow cytometry data taken under various staining conditions suggested reactive oxygen species-mediated RNA depletion as the plausible cause of bacterial cell death in the presence of the gelator salt. Shear thinning of the aqueous gel of A14N2S along with its anti-bacterial activity indicated that it could be a potential candidate for topical application.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to American Chemical Society. |
ID Code: | 123648 |
Deposited On: | 10 Oct 2021 09:42 |
Last Modified: | 10 Oct 2021 09:42 |
Repository Staff Only: item control page