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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 non‐covalent 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). [ABSTRACT FROM AUTHOR]

Cover Feature: Disulphide Cross-Linked Ultrashort Peptide Hydrogelator for Water Remediation (Chem. Eur. J. 37/2023) Keywords: disulphide; dye removal; hydrogels; peptides; self-assembly EN disulphide dye removal hydrogels peptides self-assembly 1 1 1 07/05/23 20230703 NES 230703 B Unleashing the power of peptide hydrogels for environmental remediation b : This is a tale of an ultrashort peptide hydrogel (azo-KC) and its efficiency for wastewater treatment. Disulphide, dye removal, hydrogels, peptides, self-assembly. [Extracted from the article]