Andronescu Ecaterina, Voicu Georgeta, Ficai Maria, Mohora Ioana Anita, Trusca Roxana, Ficai Anton
POLITEHNICA University of Bucharest, Faculty of Applied Chemistry and Material Science, 1-7 Polizu Str., Bucharest, Romania.
J Electron Microsc (Tokyo). 2011;60(3):253-9. doi: 10.1093/jmicro/dfr010. Epub 2011 Mar 16.
Our purpose was to obtain and characterize some collagen/hydroxyapatite (COLL/HA) hybrid composite materials with desired ceramic properties. The ceramic properties of these materials were achieved by combining two drying methods: controlled air drying at 30°C followed by freeze-drying. Through the function of the air drying times, the materials morphology varies from porous materials (when the materials are freeze-dried) up to dense materials (when the materials are air-dried), while the combined drying allows us to obtain an intermediary morphology. The composite materials intended to be used as bone grafts and in a drug delivery system were characterized by XRD, FTIR, SEM, and also by determining the ceramic properties by using the Arthur method. The ceramic properties of these COLL/HA composite materials vary in large range, for instance the density of the materials varies from 0.06 up to 1.5 g/cm(3) while the porosity varies from 96.5% down to 27.5%.
我们的目的是获得并表征一些具有所需陶瓷性能的胶原蛋白/羟基磷灰石(COLL/HA)混合复合材料。这些材料的陶瓷性能是通过结合两种干燥方法实现的:先在30°C下进行控制空气干燥,然后进行冷冻干燥。通过空气干燥时间的作用,材料形态从多孔材料(当材料进行冷冻干燥时)到致密材料(当材料进行空气干燥时)变化,而组合干燥使我们能够获得中间形态。旨在用作骨移植和药物递送系统的复合材料通过X射线衍射(XRD)、傅里叶变换红外光谱(FTIR)、扫描电子显微镜(SEM)进行表征,并且还通过使用亚瑟方法测定陶瓷性能。这些COLL/HA复合材料的陶瓷性能变化范围很大,例如材料的密度从0.06变化到1.5 g/cm³,而孔隙率从96.5%下降到27.5%。
J Electron Microsc (Tokyo). 2011
Colloids Surf B Biointerfaces. 2010-8-13
Stomatologiia (Mosk). 1996
Colloids Surf B Biointerfaces. 2008-10-15
J Biomater Sci Polym Ed. 2007
J Prosthet Dent. 2004-5
Des Monomers Polym. 2021-9-28
J Clin Med. 2021-1-12
Bioact Mater. 2020-11-16
Bioact Mater. 2017-9-18
Int J Nanomedicine. 2014-5-28