磷酸钙

The results showed that the catalyst, with calcium phosphate as the main part, is active and selective in the splitting of acetal.

实验结果表明：以磷酸钙为主体的催化剂对缩醛裂解反应具有较高的活性和选择性。

Calcium chloride modified nanoparticles prepared by means of chemistry. Analyse the combination of calcium phosphate nanoparticles and DNA, the protection to DNA as well by gelose gelatin electrophoresis. When the green fluorescence protein gene was regarded as report gene, gene vector of calcium phosphate nanoparticles transfected CNE-2 cell in vitro and vivo. Combine the calcium phosphate nanopartides and suicide gene yCDg1yTK for Nasopharyngeal Carcinoma therapy in vitro.

化学方法制备，氯化钙修饰纳米颗粒，用琼脂糖凝胶电泳分析磷酸钙纳米颗粒与DNA的结合效率及对DNA的保护作用，用绿色荧光蛋白基因作报告基因，将磷酸钙纳米颗粒为基因载体转染鼻咽癌(CNE-2)细胞和在动物体内转染肿瘤细胞；以及将磷酸钙纳米与自杀基因yCDglyTK结合，并在体外对鼻咽癌进行基因治疗。

PTFE and NPG exhibit a poor biocompatibility, while β-TCP and CPC have a good biocompatibility, and CPC is the most biocompatible of all the biomaterials tested.

聚四氟乙烯和NPG的生物相容性程度较差，β-磷酸三钙和固化的磷酸钙骨水泥的相容性较好，尤其是固化的磷酸钙骨水泥。

The crystallite-covered samples were immersed in the supersaturated solution, and the crystallites grew to uniform calcium phosphate coatings.

再将磷酸钙晶体覆盖的Ti6Al4V浸入过饱和溶液后，表面的磷酸钙晶体迅速生长成为均匀的磷酸钙涂层。

BACKGROUND: The mixture of calcium acid phosphate bone cement and drugs can affect curing reaction and crystallization of calcium acid phosphate bone cement, which can finally change crystal structure and biomechanics strength of end products.

背景：研究证实磷酸钙骨水泥与药物混合后可能会影响磷酸钙骨水泥的固化反应过程和品体形成过程，进而改变反应终产物的晶体结构和生物力学强度等性能。

BACKGROUND: The mixture of calcium acid phosphate bone cement and drugs can affect curing reaction and crystallization of calcium acid phosphate bone cement, which can finally change crystal structure and biomechanics strength of end products.

背景：研究证实磷酸钙骨水泥与药物混合后可能会影响磷酸钙骨水泥的固化反应过程和晶体形成过程，进而改变反应终产物的晶体结构和生物力学强度等性能。

Nano-zirconia particle diameter and calcium phosphate powder, added sufficient quantum compound SiO2 and Na2O adjunct, after added deionise water and grind 4h, select polyurethane scaffold (interval porosity of 75%、85% and 92%, pore diameter 300um) as mould to obtain nano-zirconia calcium phosphate scaffolds.

以纳米氧化锆颗粒和磷酸钙粉体为原料，加入适量含SiO2和Na2O的复合添加剂制成复合粉体，加入去离子水后混磨4小时，分别选用孔隙率75%、85%和92%，孔径为300um的聚氨酯支架为模板，制成纳米氧化锆/磷酸钙骨支架。

In previous studies, most of the results emphasized the role of microorganism-induced mineralization of calcium phosphate, a taphonomic process known as authigenic mineralization. In their results, the calcium phosphates only mineralized outside the cells but never found inside the cells.

从实验的结果来看，磷酸钙仅沈积於细胞膜外，但在化石纪录中我们甚至可以看到细胞核、叶绿体等构造被沈积的磷酸钙矿化保存下来。

Objective To investigate the biomechanical behavior of injectable recombinant human bone morphogenetic protein-2 (rhBMP-2)/calcium phosphate cement used in vertebroplasty in primate models. Methods Two fresh cadavers of adult rhesus were used as group Ⅰ, and 4 adult rhesuses were divided into groups Ⅱ and Ⅲ.

复合重组人骨形态发生蛋白-2的可注射磷酸钙骨水泥在椎体成形术中的目的探讨自主研发的复合重组人骨形态发生蛋白－2(rhBMP-2)的可注射磷酸钙骨水泥应用于猕猴椎体成形术早期和后期生物力学性能。

Two approaches were reported in experimental simulations of calcium phosphates mineralization of soft-bodied fossils.

磷酸钙沈积在细胞内部的机制有两种，旧有的文献中都倾向於微生物的作用所导致磷酸钙的沈积。

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。