Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume -, Issue -, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202300312
Keywords
disulphide; dye removal; hydrogels; peptides; self-assembly
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A peptide hydrogelator containing a C-terminal cysteine can form insoluble hydrogel through non-covalent and covalent interactions, exhibiting thixotropic and injectable properties. It has been utilized for the removal of organic dyes from wastewater, offering a reliable, straightforward, nontoxic, cheap, and environmentally friendly adsorbent.
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).
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