Journal ArticleDOI
Sulfamide-Lattice Restructuring To Form Dimensionally Controlled Molecular Arrays and Gel-Forming Systems
Saripalli V. Raghava,Pushparathinam Gopinath,Bhartendu K. Srivastava,Venkatachalam Ramkumar,K. M. Muraleedharan +4 more
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TLDR
Crystallographic studies of these two-component systems gave molecular-level insight into the assembly and showed the importance of anisotropy in the distribution of secondary interactions in gelation.Abstract:
A design approach that incorporates structural requirements for the formation of a 1D assembly, fibril stability, and fibril-fibril interactions for gelation was attempted by using amino acid-based sulfamides with the general structure Aa-NH-SO2 -NH-Aa (Aa=amino acid). A preference for 1D assembly alone was not a sufficient condition for gelation, which became evident from studies involving sulfamide esters 1-5. Reducing the crystallization tendency without hindering unidirectional growth was executed through diacids of the sulfamide precursors with various amines that form an envelope around the sulfamide core through salt bridges. This strategy was fruitful, and gels of a wide variety of solvents could be formed by varying the acid and amine components. The use of dodecylamine or benzylamine, which could stabilize the molecular layers through alkyl-chain segregation or π-π interactions improved the gelation tendency, whereas the nature of the amino acid side chain, especially the rotational freedom and hydrophobicity, had a direct role in dictating the solvent preference. Crystallographic studies of these two-component systems gave molecular-level insight into the assembly and showed the importance of anisotropy in the distribution of secondary interactions in gelation.read more
Citations
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Tunable morphology and functionality of multicomponent self-assembly: A review
TL;DR: In this article, the tuning of morphology and functionality of multicomponent co-assembly was discussed according to the purpose of their mixing in the following three aspects separately: (1) one of the components can self-assemble individually, the other added components can tune the morphology and functionalities of the assemblies, (2) all of the component can self assemble individually but the mixture can strength the assemblies or generate new functionalities, and (3) none of the constituent can self assemble individually, but the mixtures can selfassemble into novel properties.
Journal ArticleDOI
Towards a fragment-based approach in gelator design: halogen effects leading to thixotropic, mouldable and self-healing systems in aryl-triazolyl amino acid-based gelators!
TL;DR: A simple replacement of a H atom by Br transformed non-gelating aryl triazolyl amino acid benzyl ester into a versatile gelator, which formed shape-persistent, self-healing and mouldable gels.
Journal ArticleDOI
The remarkable role of hydrogen bond, halogen, and solvent effect on self-healing supramolecular gel
TL;DR: In this paper , a different perspective was used to study a family of D-gluconic acetal-based gelators with variable structural fragments in 14 different solvents, and a more detailed understanding of self-assembly and self-healing mechanism of supramolecular gels was attained.
Journal ArticleDOI
Photoirradiation-generated radicals in two-component supramolecular gel for polymerization
TL;DR: A two-component supramolecular gel that can generate and stabilize radicals through photo-irradiation, which can be subsequently used for polymerization and could be used to polymerize acrylic acid directly without deoxygenation.
Journal ArticleDOI
From helical supramolecular arrays to gel-forming networks: lattice restructuring and aggregation control in peptide-based sulfamides to integrate new functional attributes
Saripalli V. Raghava,Bhartendu K. Srivastava,Kalluruttimmal Ramshad,Sudhadevi Antharjanam,Babu Varghese,K. M. Muraleedharan +5 more
TL;DR: The assembly preference of a group of peptide-based sulfamides was modulated by making them part of an acid-amine two-component system to drive the tendency from crystallization to gelation, leading to Gelation of a number of solvents.
References
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Journal ArticleDOI
Water gelation by small organic molecules.
Journal ArticleDOI
Functional π-Gelators and Their Applications
Journal ArticleDOI
Metal- and Anion-Binding Supramolecular Gels
TL;DR: This work focuses on the development of models for Gel Rheology, which addressed the role of metals in Gel Formation, and their role in the construction of Gels as Templates.
Journal ArticleDOI
New Functional Materials Based on Self‐Assembling Organogels: From Serendipity towards Design
Jan H. van Esch,Bernard Feringa +1 more
Journal ArticleDOI
Molecular organogels. Soft matter comprised of low-molecular-mass organic gelators and organic liquids.
Mathew George,Richard G. Weiss +1 more
TL;DR: This Account presents recent advances in understanding how and why dilute solutions/sols of low-molecular-mass organic gelators (LMOGs) undergo microscopic phase separation to form self-assembled fibrillar networks in molecular organogels.
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