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Updated: Nov 18, 2025
Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper
Published on: February 27, 2021
Water-soluble triazole chitin derivative and its based nanoparticles: Synthesis, characterization, catalytic and
Andreii S Kritchenkov1, Anton R Egorov2, Rimma A Abramovich2
1Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St. 6, Moscow, 117198, Russian Federation; Saint Petersburg National Research University of Information Technologies, Mechanics, and Optics, Kronverkskii pr. 49, 197101, St. Petersburg, Russian Federation; Institute of Technical Acoustics NAS of Belarus, Ludnikova Prosp. 13, Vitebsk, 210009, Belarus.
Abstract:
In this work, we treated chitin with 2-(azidomethyl)oxirane and successfully involved the resultant azido chitin derivatives in the ultrasound-assisted Cu(I)-catalyzed azido-alkyne click (CuAAC) reaction with propargylic ester of N,N,N-trimethyl glycine. Thus, we obtained novel water-soluble triazole chitin derivatives. The triazole chitin derivatives and their nanoparticles are characterized by a high in vitro antibacterial activity, which is the same or even higher than that of commercial antibiotics ampicillin and gentamicin. The obtained derivatives are non-toxic. Moreover, the obtained water-soluble polymers are highly efficient green catalysts for the aldol reaction in green solvent water. The catalysts can be easily extracted from the reaction mixture by its precipitation with green solvent ethanol followed by centrifugation and they can be reused at least 10 times.
