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摘要:
Freestanding membrane (FSM) of hydroxyapatite (HA) is a thin sheet of pure HA without any supporting substrates. Our original preparation process of FSM of HA had three steps: The first was the deposition of HA layer on sacrificial layer of solvent-soluble materials, the second was separation of FSM of HA by means of dissolution of sacrificial layer, and the third was post-annealing to crystallize FSM of HA. To date, the post-annealing process was a serious bottleneck of productivity owing to its too long time. In this short report, we proposed a novel sacrificial layer, heatproof and water-soluble Ba-compound, which makes the direct deposition of crystallized HA possible due to its heatproof property because the problem on the original process was that the previous sacrificial layers have no heatproof property and HA layer should be deposited as amorphous. We can deposit the Ba-compound sacrificial layer only in 1 hour followed with the direct deposition of crystallized HA layer, substituting the 20 hours of post-annealing. The FSM of HA was separated successfully from the substrate by means of dissolution of Ba-compound with water. Our novel process can shrink the process time by 19 hours.
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篇名 Direct Process to Prepare Crystallized Freestanding Membranes of Hydroxyapatite Using Sacrificial Layer of Barium-Compounds
来源期刊 结晶过程及技术期刊(英文) 学科 医学
关键词 FREESTANDING MEMBRANE HYDROXYAPATITE Sacrificial Layer Ba-compounds
年,卷(期) 2017,(2) 所属期刊栏目
研究方向 页码范围 48-53
页数 6页 分类号 R73
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FREESTANDING
MEMBRANE
HYDROXYAPATITE
Sacrificial
Layer
Ba-compounds
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结晶过程及技术期刊(英文)
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2161-7678
武汉市江夏区汤逊湖北路38号光谷总部空间
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