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具有所需陶瓷性能的胶原蛋白/羟基磷灰石复合材料。

Collagen/hydroxyapatite composite materials with desired ceramic properties.

作者信息

Andronescu Ecaterina, Voicu Georgeta, Ficai Maria, Mohora Ioana Anita, Trusca Roxana, Ficai Anton

机构信息

POLITEHNICA University of Bucharest, Faculty of Applied Chemistry and Material Science, 1-7 Polizu Str., Bucharest, Romania.

出版信息

J Electron Microsc (Tokyo). 2011;60(3):253-9. doi: 10.1093/jmicro/dfr010. Epub 2011 Mar 16.


DOI:10.1093/jmicro/dfr010
PMID:21415027
Abstract

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%.

摘要

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%。

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Collagen/hydroxyapatite composite materials with desired ceramic properties.

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