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090			_aB-21275
245	1	0	_aTuning the properties of porous chitosan: Aerogels and cryogels
490	0		_aInternational Journal of Biological Macromolecules. 202, 215-223, 2022, DOI: 10.1016/j.ijbiomac.2022.01.042
520	3		_aHighly porous chitosan-based materials were prepared via dissolution, non-solvent induced phase separation and drying using different methods. The goal was to tune the morphology and properties of chitosan porous materials by varying process parameters. Chitosan concentration, concentration of sodium hydroxide in the coagulation bath and aging time were varied. Drying was performed via freeze-drying leading to "cryogels" or via drying with supercritical CO2 leading to "aerogels". Cryogels were of lower density than aerogels (0.03-0.12 g/cm3 vs 0.07-0.26 g/cm3, respectively) and had a lower specific surface area (50-70 vs 200-270 m2/g, respectively). The absorption of simulated wound exudate by chitosan aerogels and cryogels was studied in view of their potential applications as wound dressing. Higher absorption was obtained for cryogels (530-1500%) as compared to aerogels (200-610%). © 2022
650	1	4	_aDENSITY
650	1	4	_aFREEZE-DRYING
650	1	4	_aPOROSITY
650	1	4	_aSPECIFIC SURFACE AREA
650	1	4	_aSUPERCRITICAL DRYING
700	1	2	_aChartier C.
700	1	2	_aBuwalda S.
700	1	2	_aVan Den Berghe H.
700	1	2	_aNottelet B.
700	1	2	_aBudtova T.
856	4	0	_uhttps://drive.google.com/file/d/1sh0mR2sIOe9UmkoKU6CjleW7l9sNgenQ/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta @cicy.edu.mx
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