Preparation and Performance Characterization of Hemostatic Materials
| Autor: | Chang Ping Wei, Shuang Sun, Li Dan Dong, Feng Ming Wang, Qing Yi Liu, Jing Li |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Ion exchange Mechanical Engineering Analytical chemistry Infrared spectroscopy Condensed Matter Physics Sodium salt Characterization (materials science) Chitosan Crystal chemistry.chemical_compound chemistry Chemical engineering Mechanics of Materials General Materials Science Nanometre Absorption (chemistry) |
| Zdroj: | Materials Science Forum. 852:1282-1287 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.852.1282 |
| Popis: | Nanometer chitosan (nmCS) was obtained by ion exchange methodology, and the nanometer CS-Ag、CS-Ca and CS-Ag-Ca were prepared by introducing AgNO3 and saturated CaCl2 solution into the product obtained above. The structures of samples were characterized by IR, XRD, SEM etc. The properties of cruor and hemostasis were studied by biological experiment. The results showed that the characteristic absorption peaks at 1647 cm-1 and 1560 cm-1 in the IR spectra of modified chitosan were assigned to nanometer chitosan sodium salt. The XRD spectra showed the characteristics of crystal shape of Ag+ and Ca2+. The SEM showed that nanometer chitosan had a part of precipitate of Ag+ and the composite effect of nanometer CS-Ca was better. The properties of cruor and hemostasis of CS-Ag-Ca were superior to CS-Ag and CS-Ca, while the CS-Ag and CS-Ca were also had an advantage over CS. |
| Databáze: | OpenAIRE |
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