Synthesis and properties of acylated chitin and chitosan derivatives

Influence of chitosan coating on the separation performance, morphology and anti-fouling properties of the polyamide nanofiltration membranes

“…Some suitable features of modified membranes such as charge density, high hydrophilicity, mechanical and chemical stabilities, antibacterial, non toxicity and non allergic, antiviral, high radiation resistance, the capability for the immunological protection against pathogens, biodegradability and biocompatibility are the main reasons of chitosan using as a PA membrane modifier [26]. Two hydroxyl and one amine functional groups existing in the monomer unit of chitosan chains and its solubility in weak acidic aqueous solutions provide wide possibilities to synthesis of new membranes with different properties [27]. Chitosan is deposited onto the PA membrane by mechanisms: (1) electrostatic forces [28], (2) reaction between acylchloride and chitosan amine groups [27], and (3) reaction between hydroxyl groups and acylchloride [29].…”

Chemical modification of chitosan under high-intensity ultrasound and properties of chitosan derivatives

“…Chitosan [poly (b-(1, 4)-2-amino-2-deoxy-D-glucose)] is a hydrophilic, biocompatible and biodegradable polysaccharide prepared by N-deacetylation of chitin, which is the main structural component of crab and lobster testae (Vasnev, Tarasov, Markova, Vinogradova, & Garkusha, 2006). Chitin is the most important natural polysaccharide after cellulose (Jose, Edward, & Eder, 2005).…”

Effect of membrane dialysis on characteristics of lyophilised chitosan wafers for potential buccal delivery of proteins

“…It has recently received increased attention due to its biocompatible, biodegradable, non-toxicity, hydrophilicity and excellent lyophilised wafer and film-forming properties [2]. Its application as a functional material extends across several industries including agro-processing, food, pharmaceutical and medicinal industries [3,4] as well as environmental protection, biotechnology and cosmetics industries [5,6].…”