Carboxymethyl chitosan dialdehyde starch Schiff base (CMCDAS) and its metal complexes are synthesized by corn (St), sodium periodate, carboxymethyl chitosan, ions (copper, zinc, nickel, silver), characterized Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermogravimetric analyzer (TGA), energy dispersive (EDS), X-ray powder diffraction (XRD). The antibact...

N-sodium acrylate-O-carboxymethyl chitosan [CMCH-g-PAA(Na)] bound Fe3O4 nanoparticles were developed as a novel magnetic nanoparticles with an ionic structure that can be potentially used in many fields. CMCH-g-PAA (Na) was obtained by grafting of sodium polyacrylate on O-carboxymethyl chitosan, which is an amphiphilic polyelectrolyte with the biocompatibility and biodegra...

A first report on the fabrication of nanocomposite scaffolds containing nano-hydroxyapatite/carboxymethyl chitosan/β-cyclodextrin heterojunctions fused with date seed extract for bone tissue engineering applications.

Chitin is a nitrogen-containing polysaccharide, related chemically to cellulose. It is a principal constituent of the exoskeleton crustaceans. Due to their biocompatibility and less toxic nature, it has been developed as new physiologically bioactive materials since they possess various biological activities. Chemical extraction of chitin from shells, of the white shrimp Parapenaeus longirostri...

The morphological changes of gold nanoparticles induced by T7 virus (bacteriophage) and the determination of its femtomolar concentration by a plasmonic method are presented. Carboxymethyl chitosan capped gold nanoparticles (CMC-AuNPs) are used as plasmonic probes and are synthesized by a simple one pot wet chemical method. HR-TEM images show that the spherical structure of the CMC-AuNPs is cha...

A line of cosmetic products of interest for denta l and oral applications has been prepared with Ncarboxymethyl chitosan, endowed wi th biochemical and microbiologica! sig nificance. Moreover, a systematic survey of the use of N-carboxymethyl chitosan in emulsions has been made, and an aftersun body milk is preseted as an example of advanced cosmetic formu lations. Riassunto È stata preparata u...

PURPOSE Post-surgical adhesion formation can result in significant morbidity and mortality. N,O-carboxymethyl chitosan (N,O-CMC) has been previously shown to be effective in the prevention of postsurgical adhesion formation. In this study, we evaluated the ability of O-carboxymethyl chitosan (O-CMC), another chitosan derivative generated by carboxymethylation of chitosan's oxygen centers, to re...

Finding a cheap and easily recycling material that can capture CO2 under atmospheric pressure (1 atm) is of paramount importance. In this context, combining ionic liquids (ILs) with abundant natural materials, such as chitin-based biopolymers, appears an interesting alternative. work, four acetate-based ILs were selected to explore the solubility chitin, chitosan, carboxymethyl-chitosan. Using ...