Disulphide Cross‐Linked Ultrashort Peptide Hydrogelator for Water Remediation

Abstract

A single amino acid in a peptide sequence can play an important role to tune the self-assembly and hydrogelation behaviour. Here, a C-terminal cysteine-containing ultrashort peptide hydrogelator forms hydrogel through noncovalent and covalent interactions. Interestingly, the hydrogel is insoluble in water and buffer solutions at different pH values (1-13) and is thixotropic and injectable. In recent years, removing dyes from contaminated water has become a significant concern because of the shortage of freshwater resources. Therefore, the adsorption of dyes through a reliable, straightforward, nontoxic, cheap, and environmentally friendly adsorbent has become a popular topic. Hence, the hydrogelator was exploited to remove organic dyes from wastewater, harnessing its applicability in the gel phase and solid supports (filter paper and cotton).

Hybrid gels by combining low molecular weight glycolipid gelators with agarose: a promising soft material for efficient dye removal

“…Gels have received much attention as adsorbents in the literature. 27,28 Different materials can be used as adsorbents, such as amino-functionalized silica gel, 29 chitosan/graphene oxide nanocomposite aerogel, 30 supramolecular ionogels, 31 metallogels, 32 supramolecular gels, 27,28,33 polymer gels, 20 fly ash, 34 and metal complexes. 35,36 Dye adsorption via reliable, non-toxic, eco-friendly, and low-cost materials is more important.…”

Green Synthesis of Hydrogel-Based Adsorbent Material for the Effective Removal of Diclofenac Sodium from Wastewater

“…Although in the literature there are many materials used for the adsorption of pharmaceuticals from wastewater [ 29 , 30 , 31 , 32 ], the scientific novelty of the present research is the design of a green hydrogel as an economic adsorbent, easy to be prepared and easy to be modified, and cost-effective, but with high efficiency for removing the pharmaceutical contaminants from water. For this purpose, diclofenac sodium was chosen as a “model-drug system”.…”