Multifunctional properties of bio-supramolecular gel with their structural transformation and its applications

Sasikala, V.; Mani, Rajaboopathi; Vignesh, S.; Sundar, Jeyaperumal Kalyana

doi:10.1016/j.colsurfa.2019.123993

Cited by 4 publications

(1 citation statement)

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“…Recently, Vadivel Sasikala et al [ 57 ] designed multifunctional gel based on arginine [ 58 ], 1,3,5-benzene tricarboxlic acid (BTC) and Co(II) with tunable morphology, caused by modifying pH. These structural changes are probably due reorganization in the metal ion coordination mode at different pH, leading to 1D microfibers (pH 5), 2D micro sheets (pH 7), 3D rugged (pH 8) and mixture of different morphologies (pH 9).…”

Section: Hydrogels Based On Coordination Bonds With Bioinspired Ligandsmentioning

confidence: 99%

Advances and Novel Perspectives on Colloids, Hydrogels, and Aerogels Based on Coordination Bonds with Biological Interest Ligands

Maldonado

Amo‐Ochoa

2021

Nanomaterials

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This perspective article shows new advances in the synthesis of colloids, gels, and aerogels generated by combining metal ions and ligands of biological interest, such as nucleobases, nucleotides, peptides, or amino acids, among other derivatives. The characteristic dynamism of coordination bonds between metal center and biocompatible-type ligands, together with molecular recognition capability of these ligands, are crucial to form colloids and gels. These supramolecular structures are generated by forming weak van der Waals bonds such as hydrogen bonds or π–π stacking between the aromatic rings. Most gels are made up of nano-sized fibrillar networks, although their morphologies can be tuned depending on the synthetic conditions. These new materials respond to different stimuli such as pH, stirring, pressure, temperature, the presence of solvents, among others. For these reasons, they can trap and release molecules or metal ions in a controlled way allowing their application in drug delivery as antimicrobial and self-healable materials or sensors. In addition, the correct selection of the metal ion enables to build catalytic or luminescent metal–organic gels. Even recently, the use of these colloids as 3D-dimensional printable inks has been published. The elimination of the solvent trapped in the gels allows the transformation of these into metal–organic aerogels (MOAs) and metal–organic xerogels (MOXs), increasing the number of possible applications by generating new porous materials and composites useful in adsorption, conversion, and energy storage. The examples shown in this work allow us to visualize the current interest in this new type of material and their perspectives in the short-medium term. Furthermore, these investigations show that there is still a lot of work to be done, opening the door to new and interesting applications.

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Section: Hydrogels Based On Coordination Bonds With Bioinspired Ligandsmentioning

confidence: 99%