A peptidomimetic-based thixotropic organogel showing syneresis-induced anti-adhesion against water and ice. (17th December 2021)

• Record Type: Journal Article
• Authors: Gumtya, Milan; Mondal, Sahabaj; Kumar, Santosh; Ibukun, Olamilekan Joseph; Haldar, Debasish
• Is Part Of: New journal of chemistry. Volume 46:Number 3(2022)
• Page Start: 1105
• Page End: 1110
• Publication Date: 2021-12-17
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d1nj04647k
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : A peptidomimetic containing 2, 6-dimethylpyridine-3, 5-dicarboxylic acid and phenylalanine formed a thixotropic gel which shows syneresis under appropriate conditions and anti-adhesion against water and ice. Abstract : The self-assembly, organogelation, syneresis, and anti-adhesion properties of a peptidomimetic containing l -phenylalanine and 2, 6-dimethylpyridine 3, 5-dicarboxylic acid have been studied in detail. The peptidomimetic forms a transparent gel in aromatic solvents such as benzene, toluene, xylene and chlorobenzene. The hierarchical nature of the self-assembly process in the gel was characterized by a combination of POM and FE-SEM imaging, revealing an entangled fiber network. The rheology measurements then confirmed the formation of a thixotropic organogel. The storage modulus was about one order of magnitude higher than the loss modulus, which indicates the physical crosslinking in the organogel. The gel exhibits significant self-healing properties and allows diffusion of rhodamine 6G through the gel matrix. The peptidomimetic gel shows syneresis under an appropriate environment. The peptidomimetic organogel surfaces exhibit syneresis-induced anti-adhesion properties against ice and water. This peptidomimetic gelator molecule, being economically viable and easy to synthesize, has great prospects in materials chemistry.