Chitosan (CH) was N-alkylated via Schiff base formation and further reduced via sodium
borohydride. The reaction was carried out at room temperature, in a homogeneous aqueous …

The search for natural antibacterial agents to treat diseases caused by resistant
microorganisms has been gaining increasing attention. Chitosan has been studied in …

Currently, natural polysaccharides are being utilized increasingly in the markets because
they exhibit biodegradability, biocompatibility, versatility, and are found abundant in nature …

Six cyclic substituted chitosan derivatives were synthesized, and their structures were
characterized by FTIR, 13 C NMR and elemental analyses. Additionally, their antimicrobial …

Chitosan has received much attention for its role in designing and developing novel
derivatives as well as its applications across a broad spectrum of biological and …

In this study, nine chitosan derivatives containing aromatic five-membered heterocycles
were prepared and the effects of different grafting methods on the biological activities of …

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 …

Three novel 6-N-substituted chitosan derivatives were designed and synthesised and
characterized by FTIR and NMR. The degree of substitution was calculated by elemental …

Chitosan is a linear polysaccharide with a good biodegradability, biocompatibility, and no
toxicity, which provide it with huge potential for future development. The chitosan molecule …

Chitosan (CS) derivatives with improved water solubility, antibacterial activity and adequate
biocompatibility are attracting increasingly interest in medical application. Herein, we have …