Nov 15, 2022 · The 2-amino group of the glucosamine skeleton of chitosan, which is the only difference between chitosan and cellulose, may provide an interesting site to explore the chiral …

Dec 1, 2024 · Chitosan, a natural organic substance rich in nitrogen and carbon, and thiourea, a synthetic plant growth regulator containing sulfur and nitrogen, have garnered significant …

Nov 15, 2022 · The introduction of thiourea increases the adsorption sites of chitosan and the adsorption capacity of the composite for Cr (III). CS-thiourea-Zr can efficiently remove Cr (VI) …

Apr 14, 2016 · As chitosan has low uptake for Pb (II) and high solubility in monoprotic acids, a simple procedure using nontoxic chitosan as a precursor at room temperature was developed …

Nov 4, 2019 · A new class of chitosan derivatives possessing thiourea salts were synthesized to improve the solubility and the antioxidant activity of chitosan. Firstly, chitosan was modified to …

Thiourea has been proved to be a good material to modify chitosan and improve its adsorption ability for many heavy metals [16, 17]. In this work, we synthesized thiourea cross-linked …

Nov 15, 2022 · These results demonstrated that these chitosan 2- [3- (methylthio)propylthiourea]-3,6-diphenylcarbamate derivatives showed attractive chiral recognition abilities, especially for …

With the aim to discover chitosan derivatives with enhanced antibacterial activity and good water solubility compared with natural chitosan, a novel O-quaternary ammonium N-acyl thiourea …

Feb 25, 2008 · Three different acyl thiourea derivatives of chitosan (CS) were synthesized and their structures were characterized by FT-IR spectroscopy and elemental analysis.

May 23, 2017 · Eight different biodegradable chitosan-supported bifunctional chiral thioureas have been prepared as a greener and more sustainable alternative to those supported on …