Optimization of Preparation Process and Preliminary Evaluation of Carboxymethyl Chitosan Hemostatic Sponge
نویسندگان
چکیده
منابع مشابه
Preparation, Characterization, and Insecticidal Activity of Avermectin-Grafted-Carboxymethyl Chitosan
Avermectin-grafted-N,O-carboxymethyl chitosan (NOCC) derivative was obtained by esterification reaction using dicyclohexylcarbodiimide (DCC) as dehydrating agent and 4-methylaminopyridine as catalyst. The structures of the conjugate were confirmed by FT-IR, (1)H NMR, and XRD. Insecticidal activities against armyworms, carmine spider mites, black bean aphids, and brown plant hoppers were investi...
متن کاملeffect of postharvest application of chitosan and calcium chloride on decay and quality attributes of sweet cherry
چکیده ندارد.
15 صفحه اولPreparation of carboxymethyl chitosan in aqueous solution under microwave irradiation.
Carboxymethyl chitosan was prepared by reacting chitosan with chloroacetic acid in water under microwave irradiation. The effect of the reaction conditions was investigated and optimal conditions were identified. The influence of mass ratio of chloroacetic acid to chitosan, microwave power and pH on the degree of substitution or intrinsic viscosity were further studied. The degree of substituti...
متن کاملPreparation of Chitosan-Based Hemostatic Sponges by Supercritical Fluid Technology
Using ammonium bicarbonate (AB) particles as a porogen, chitosan (CS)-based hemostatic porous sponges were prepared in supercritical carbon dioxide due to its low viscosity, small surface tension, and good compatibility with organic solvent. Fourier transform infrared spectroscopy (FTIR) spectra demonstrated that the chemical compositions of CS and poly-(methyl vinyl ether-co-maleic anhydride) ...
متن کاملModeling and optimization of degree of folate grafted on chitosan and carboxymethyl-chitosan
Chitosan is a cationic polysaccharide with great properties and so is considered as an attractive biopolymer. However, chitosan shows its antibacterial activity only in acidic environment and this restricts its uses. So water-soluble chitosan derivatives such as carboxymethyl chitosan could be good candidates for such biomedical applications. Modified chitosan with hydrophobic functional groups...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: DEStech Transactions on Materials Science and Engineering
سال: 2017
ISSN: 2572-889X
DOI: 10.12783/dtmse/smne2016/10548