磷灰石

Objective: To investigate the feasibility of biphasic phosphate matrix as scaffold material in bone tissue engineering.

中文摘要：目的：研究脐静脉内皮细胞在双向羟基磷灰石的生长情况，为组织工程材料研究提供实验基础。

The bonding strength of bonelike apatite layer formed on the titanium oxide films to the substrates under different heat treatment temperature is examined under tensile s...

当对氧化钛膜进行适当的碱处理和热处理，在人体仿生液SBF溶液中浸泡7天后表面形成的骨质磷灰石与基体的结合强度可达到36MPa。

The methodology and its mechanism for the biomimetic synthesis of HAp/Col bone-like composite by in vitro imitating bone biomineralization and self-assemble process of materials is reviewed here. hydroxyapatite/collagen ; bonelike composite ; biomineralization ; self-assembly

从成分上来讲，天然骨除了含有羟基磷灰石无机成分外，还含有胶原(collagen，Col)、糖蛋白、糖胺聚糖等少量的有机成分无机物与有机物含量之比约为7∶3，其中胶原占有机质重量的90%犤2

RESULTS AND CONCLUSION: PCHC: Intra-bone mechanical strength was lower at 2 weeks, the lowest at 4 weeks, but then closed to intension of normal cancellated bone at 8 weeks, higher than normal cancellated bone at 12 weeks, and recovered to the level of normal cancellated bone at 16 weeks.

结果与结论：多孔碳酸化羟基磷灰石骨水泥：2周时的骨内力学强度较低，4周时降到最低，8周时接近正常松质骨强度，12周时超过正常松质骨强度，16周时恢复到正常松质骨水平。

Methods Using means of collection, 20% and 40% saturated ammonium sulfate fractionation, SP-sephadex C 50 column chromatography and hydroxyapatite chromatography to purify papain from Carica papaya.

采用初步采集处理，20%，40%硫酸铵分级沉淀、SP-sephadex、C50柱色谱、羟基磷灰石柱色谱，从番木瓜乳汁中分离纯化木瓜蛋白酶。

Objective To prepare the tetra-calcium phosphate cementin higher temperature and study it' s effect in the repair of rabbits' segmental defects of radius.

目的制备水泥型羟基磷灰石人工骨，并研究CPC人工骨修复兔桡骨大段骨缺损的成骨效果。

OBJECTIVE: After purification and amplification in vitro, the bone marrow mesenchymal stem cells were induced into chondrocytes, and then implanted them at the bottom of nano-hydroxyapatie/chitosan scaffold for combined culture. The aim was to investigate the feasibility of them used in tissue-engineered chondral composite graft.

目的：将体外提纯、扩增的骨髓间充质干细胞诱导成软骨细胞，将其接种于穿&靴&的纳米羟基磷灰石/壳聚糖支架的底部上联合培养，探索其用于组织工程软骨复合体的可行性。

By a method using fraction precipitation of ammonium sulphate, ion exchange, modified hydrorylapatite and gel filtration chromatography, we separated and purified two kinds of phycoerythrin(R-PE and r-PE) from Corallina officinalis . The purity standard(ratio of ODs65/OD2go) of R-PE reaches to 11, which is the highest purity comparing with the reported purity of phycoerythrin.

经盐析、离子交换层析、羟基磷灰石吸附层析和凝胶过滤层析等分离纯化方法，从珊瑚藻中分离纯化出两种藻红蛋白，其中R-PE纯度OD_(565／OD_(280)高达11左右，是目前国内外报道的藻红蛋白中纯度最高。

The Apatite fission track analysis, the deposition erosion process analysis and the cosmogenic nuclide analysis are introduced as the three new advancing methods on the recovery of the thickness of eroded strata in basin in this paper.

主要介绍了磷灰石裂变径迹分析法、沉积波动过程分析法和宇宙成因核素分析法等3 种恢复和计算地层剥蚀量的新方法。

Methods Chondrocytes were obtained from the costicartilage of rat and were cultured on the porous HA blocks, 3 mm×3 mm×4 mm size, for three and seven days.

目的 探讨以块状多孔羟基磷灰石作为软骨细胞培养的载体，构建一种促进骨愈合的植入材料的可行性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。