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Molecules 2016, 21(3), 330; doi:10.3390/molecules21030330

Chitosan and Its Derivatives as Highly Efficient Polymer Ligands

I.Ya. Postovsky Institute of Organic Synthesis, Ural Branch of Russian Academy of Sciences, Yekaterinburg 620990, Russia
Institute of Chemistry, Far East Branch of Russian Academy of Sciences, Vladivostok 690022, Russia
Author to whom correspondence should be addressed.
Academic Editor: Massimiliano Fenice
Received: 28 December 2015 / Revised: 26 February 2016 / Accepted: 29 February 2016 / Published: 11 March 2016
(This article belongs to the Special Issue Chitin, Chitosan and Related Enzymes)
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The polyfunctional nature of chitosan enables its application as a polymer ligand not only for the recovery, separation, and concentration of metal ions, but for the fabrication of a wide spectrum of functional materials. Although unmodified chitosan itself is the unique cationic polysaccharide with very good complexing properties toward numerous metal ions, its sorption capacity and selectivity can be sufficiently increased and turned via chemical modification to meet requirements of the specific applications. In this review, which covers results of the last decade, we demonstrate how different strategies of chitosan chemical modification effect metal ions binding by O-, N-, S-, and P-containing chitosan derivatives, and which mechanisms are involved in binding of metal cation and anions by chitosan derivatives. View Full-Text
Keywords: chitosan; chitosan derivatives; chemical modification; metal ions; sorption; complexation; selectivity; ion binding mechanism chitosan; chitosan derivatives; chemical modification; metal ions; sorption; complexation; selectivity; ion binding mechanism

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Pestov, A.; Bratskaya, S. Chitosan and Its Derivatives as Highly Efficient Polymer Ligands. Molecules 2016, 21, 330.

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