Chitosan gel beads immobilized Cu (II) for selective adsorption of amino acids

In vitro evaluation of chitosan copper chelate gels as a multimicronutrient feed additive for cattle

“…Chitosan has also been shown to chelate many transition metals and is reported to have a high affinity for copper relative to other metals . Chitosan gel matrices have been loaded with copper to increase their antibacterial activity, or for subsequent use in encapsulation applications …”

Electrical Conduction Mechanism in Solid Polymer Electrolytes: New Concepts to Arrhenius Equation

“…Chitosan is produced from deacetylation of chitin to overcome the solubility limitation of chitin in common solvents [6]. Due to the NH 2 and OH functional groups that can serve as conjunction sites, chitosan is a good sorbent with high affinity for transition metal ions [7]. Chitosan has good film forming ability, porous scaffolds, and hydrogels [8].…”

Immobilized chiral tropine ionic liquid on silica gel as adsorbent for separation of metal ions and racemic amino acids

“…On the basis of the discovered physicochemical properties, it is worth exploring their application in separation field. Currently, Cu 2+ ion-immobilized chitosan gel beads have been prepared to adsorb histidine (His) from the mixed solution containing His and tryptophan (Trp) under the coordination mechanism [9], and Cu 2+ and d-/l-amino acids have also been popularly used as chiral coordination reagent in mobile phase to achieve enantioseparation of other racemic amino acids on normal reversed-phase chromatographic system through ligand exchange [10]. However, there is no application reported about the second adsorption (reuse) after adsorption for Cu 2+ or other metal ions and racemic amino acids by this kind of immobilized chiral ionic liquids up to now.…”