磷灰石

It is closely related between HA implant fibrovascularization and inflammatory reaction; VEGF may be involved in the formation of fibrovascularization, dexamethasone may be through inhibiting the inflammatory response and VEGF expression, and thus inhibit implants of fibrovascular growth.

羟基磷灰石植入物纤维血管化与炎症反应密切相关，VEGF可能参与了纤维血管化形成过程，地塞米松可能通过抑制植入物的炎症反应及 VEGF的表达。

The results show that when BSA was added with Gluma, polymerization of HEMA occurred.

分别用戊二醛、HEMA和Gluma与羟基磷灰石、I型牛胶原蛋白、牙本质和模拟牙本质液作用。

Chemical analyses of ores sampled from different elevation at the representative Zoujiashan uranium deposit indicate that Fe〓O〓, FeO, MgO and P〓O〓 increase evidently with depth which is related to alteration of haematite, chlorite and apatite, Na〓O and Na〓O+ K〓O also increase with depth, reaching a maximum of Na〓O at 911 meters below the surface, which suggests alkaline alteration increases downwards. At depth of 90 meters below sea level, where the boundary of the two cycles of the volcanic rocks is located, CaO reaches the maximum, representing maximum of alteration of fluorite.

对典型矿床不同富集标高矿体的化学全分析结果表明：随深度增加，Fe〓O〓、FeO、MgO及P〓O〓的含量有明显增高的趋势，这与赤铁矿化、绿泥石化及磷灰石化有关；-90m标高的CaO含量最高，达17.67％，反映这一部位的萤石化最发育；Na〓O及Na〓O+K〓O的含量由浅入深也存在明显的增高趋势，且Na〓O的含量在911m深处为最高，这充分显示碱交代作用从上到下有增强的趋势，而钠长石化在911m处最强烈。

In this study, different nano-hydroxyapatite particles,HAP_1(25-60nm), HAP_4(the additives is heparin, 15-50nm), HAP_5(the additives is bovine serum albumin BSA, 20-80nm) were prepared by homogeneous precipitation and used heavy-gauge hydroxyapatite as comparison,we determined amount of heparin, sialic acid ,BSA adsorbed on HAP_1,HAP_2,HAP_3 by Crystal Violet assay, Bialsche method,Bradford method respectively and analyzed the binding mechanism by infrared spectrum;After taking HAP_1,HAP_2,HAP_4,HAP_5 and RBC to co-culture in vitro,we studied RBC hemolysis test and detected RBC hematolysis rate by erythrocyte osmotic fragility test;observing the changes of morphous and locomotion of cell after coacting HAP_1,HAP_2,HAP_4,HAP_5 and RBC by light microscope and inverted phase contrast microscope;observing HAP_1,HAP_2,HAP_4,HAP_5 effecting on Ultrastructure of RBC.

本文用均匀沉淀法制备了HAP_1(25-60nm)，HAP_4(添加剂肝素，15-50nm)，HAP_5(添加剂牛血清白蛋白BSA，20-80nm)等纳米粒子，并用大尺寸的羟基磷灰石HAP_2(470-520nm)，HAP_3(1906nm)作对照，分别利用结晶紫法、Bialsche法、Bradford法研究了肝素、唾液酸、血清白蛋白在HAP_1，HAP_2，HAP_3上的吸附量，用红外光谱分析其中的结合机理；在体外将HAP_1，HAP_2，HAP4_，HAP_5与红细胞共培养，进行了红细胞溶血试验的研究，并借助红细胞渗透脆性试验检测红细胞溶血率；运用普通光学显微镜和倒置相差显微镜观察了HAP_1，HAP_2，HAP_4，HAP_5与红细胞作用后细胞形态及运动的变化：透射电镜观察了HAP_1，HAP_2，HAP_4，HAP_5对红细胞超微结构的影响。

The biocompatibility of self-designed hydroxyapatite/poly rods was evaluated both in vitro and in vivo including Ames test, micronucleus test, acute and subacute systemic toxicity test, hemolysis test, hemopexis test and long-term muscle and bone implant test.

对自行研制的可吸收羟基磷灰石/聚DL-乳酸复合骨折内固定材料进行了一系列生物相容性实验，包括Ames实验、微核实验、急性和亚急性毒性实验、溶血实验、凝血试验和肌肉、骨内长期植入实验。

The biocompatibility of self-designed hydroxyapatite/poly rods was evaluated both in vitro and in vivo including Ames test, micronucleus test, acute and subacute systemic toxicity test, hemolysis test, hemopexis test and long-term muscle and bone implant test.

对自行研制的可吸收羟基磷灰石/聚DL-乳酸复合骨折瘦身内固定材料进行了一系列生物相容性实验，包括Ames实验、微核实验、急性和亚急性毒性实验、溶血实验、凝血试验和肌肉乙肝、骨内长期植入实验。

The degradation and the osteogenic response of CHA cement were evaluated histomorphologically in osteoporotic bone.

于注射后1，3，7d和1，3，6个月分别处死5只，并截取股骨近段，制成切片，通过镜下观察及用组织形态学的方法观察碳酸化羟基磷灰石人工骨在骨质疏松骨质内的降解和成骨情况。

X-ray examination demonstrated that at 4 weeks after implantation, some or even lateral intertransverse bridging regions were unclear, and material density in the repairing group was lower than control group; at 8 weeks after implantation, interspace between up and down bridging was shrunk, and a great quantity of calluses were successively formed; at 12 weeks after implantation, complete confluence was observed, and the density in the repairing group was closed to that in the control group.

结果：采用脱蛋白处理后的松质骨可见大小不等、相互交通、开放孔隙的网架结构，孔径200~500 μm，孔隙率60%左右，其无机成分为羟基磷灰石，有机成分为胶原，力学性能保存良好，细胞相容性良好。X射线片结果显示：植入第4周，横突桥接处部分区域模糊，以内侧明显，此时修复组材料密度略低于对照组；第8周上下桥接部间隙变小，大量连续骨痂生成；12周后完全融合，两组材料密度接近。

From SPF wister rats were extracted from the femur BMSCs nestin cultivation, and third generation will BMSCs and join BMP - 2 after polylactic acid/Hydroxyapatite Poly (Lactid Hydroxyapatite/L - and PLLA/HA) composite material compound for in vitro cell culture, BMSCs MTT method in detecting the proliferation of biological material surface conditions, Scanning electron microscopy to observe its surface ultrastructure and cells in the growth of the material.

从SPF级wister大鼠股骨中提取BMSCs进行原代和传代培养，将第三代BMSCs与加入BMP-2前后的聚乳酸/羟基磷灰石（Poly L-Lactid /Hydroxyapatite， PLLA/HA）复合材料复合进行体外细胞培养，MTT法检测BMSCs在生物材料表面的增殖情况；SEM观察其表面超微机构及细胞在材料上的生长情况。

Therefore, the apatite-forming ability and the vitro bioactivity of merwinite prepared by sol-gel process have been certificated.

因此，溶胶－凝胶法合成的铁蔷薇辉石具有良好的诱导羟基磷灰石形成能力和体外生物活性。

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。