有机浆料发泡法制备多孔羟基磷灰石

本文以湿法合成的羟基磷灰石粉体为原料,采用树脂、异氰酸与水发泡工艺制备多孔生物陶瓷材料。采用浆料发泡法制得的生物陶瓷材料具有三维无序孔和二维直通孔复合结构,其总气孔率可达70%～85%;宏观孔径主要分布在0.3～0.6mm之间,微观孔径主要分布在1～3μm之间,抗压强度可达0.85MPa。通过控制烧结温度,可以调节生物陶瓷材料中羟基磷灰石(HAP)和β-磷酸三钙(β-TCP)的成分配比,从而使之满足多孔生物陶瓷材料生物相容性和生物降解性的要求。     

钢渣负载纳米零价铁-羟基磷灰石(S-FH)的制备及其对锰的吸附性能

通过液相还原法制备钢渣负载纳米零价铁-羟基磷灰石（S-FH）。分析Fe0-HAP被负载前后的微观形貌,研究了pH、S-FH投加量、反应时间和锰的初始浓度对S-FH吸附锰的影响,并借助吸附动力学模型和吸附等温模型对吸附机理作进一步分析。结果表明,在锰溶液初始浓度5 mg/L、pH=5,S-FH用量0.1 g和反应时间300 min条件下,吸附效果最佳。S-FH对锰的吸附过程更符合Freundlich吸附等温线模型（R2>0.98）和准二级动力学模型（R2>0.99）。吸附机理为离子交换、表面络合和溶解-沉淀。     

酶法制备肉味香精及其风味调配的研究

主要研究用酶水解牛肉和大豆蛋白粉制成牛肉水解蛋白和大豆水解蛋白,再添加葡萄糖和半胱氨酸等辅料,利用Maillard反应制备牛肉味香精的主香体,再对其进行调香,确定能产生逼真、浓郁牛肉香味的最佳配方。     

溶胶-凝胶法制备HAP骨水泥材料的研究

文章对用溶胶－凝胶法（简称SOL－GEL）烧结制备HAP骨水泥材料的工艺条件进行了研究，并探索了HAP粉剂与柠檬酸水溶液构成和凝结体系的可行性，结果显示出该材料作为医用骨水泥材料的可能性。     

玻璃基多孔骨水泥的制备和性能研究

将SiO2-CaO-P2O5系统生物活性玻璃粉末、甘露醇和磷酸铵调和液均匀混合制得多孔玻璃基骨水泥.利用XRD、FTIR和SEM对骨水泥的晶相和显微结构进行了观察和分析,并对其显气孔率和力学强度进行了测试.实验结果表明,随着浸泡时间的增加,骨水泥固化体中生成了HAP晶体,HAP晶体呈短柱状,交织分布于玻璃颗粒间隙,尺寸大约为200nm;甘露醇晶体能在生理模拟液的浸泡下降解,降解后留下的孔隙显著增加了骨水泥的显气孔率,并且随着甘露醇含量的增加而增加,而体积密度和力学强度则呈下降的趋势.     

水解动物蛋白(HAP)的酶法制备及应用

报道了畜禽肉及鱼用酶解法制备ＨＡＰ的最适条件。当用双酶水解时，先用胰蛋白酶后用胃蛋白酶，水解效果最好。酶—酸联合水解，胶体磨处理及热变性，都能提高蛋白质水解率。ＨＡＰ有广泛应用前景。     

脉冲激光沉积羟基磷灰石(HAP)生物陶瓷涂层的研究进展

脉冲激光沉积法制备HAP生物陶瓷涂层是一项极有发展潜力的新技术。本文介绍了采用脉冲激光沉积法制备HAP生物陶瓷涂层的研究背景、原理与意义,并对其4个主要研究方向：溅射机理、沉积条件与涂层质量的关系、HAP涂层的生理功能、脉冲激光沉积新工艺的最新研究现状进行了概括与总结。     

煅烧温度对沉淀法制备羟基磷灰石纯度的影响

利用沉淀法制备羟基磷灰石（HAP）,对影响HAP的工艺因素——煅烧温度进行了分析研究．试验结果表明,随着煅烧温度的提高,有利于获得纯度较高的HAP;但煅烧温度达到1000℃时,红外图谱中3640cm-1左右的OH吸收峰变弱,HAP产物分解;当Ca／P比为1．67时,有利于获得高纯度的HAP．     

Scalable, Hybrid Optical-RF Wireless Communication System for Broadband and Multimedia Service to Fixed and Mobile Users

This paper describes a system concept for providing, flexible high capacity multimedia communication that compliments terrestrial cellular communication systems, by supporting end-to-end broadband information services. A key element of the proposed concept is the use of optical HAP-HAP and HAP-satellite links using single color (SONET protocol based) or upon multicolor DWDM technology. The effectiveness of optical communication links is enhanced through the use of advanced optical fine pointing and tracking technology. A concept for a hybrid, optical-RF, HAP based wireless communication is presented and key technologies, capabilities and limitations are described. This revised version was published online in July 2006 with corrections to the Cover Date.     

Preparation and Characterization of Nucleus/Shell TiO2/HAP Complex Nanophotocatalyst

A rapid and more efficient method was developed to prepare nucleus/shell titania/hydroxyapatite （TiO2/HAP） complex nanophotocatalyst. Hydroxyapatite （5 μm） which had been dissolved with 0.1 mol/L HCI was formed on the surface of the nanosized anatase titania powders by increasing the pH value of the solution at 90℃ in the water bath for only several hours .The microstructure and morphology of the resulting sample were investigated by X-ray diffraction （XRD）, Fourier-transform infrared spectroscopy （FT-IR）, scanning electron microscopy （SEM）, energy dispersive spectrum （EDS） and atomic force microscope （AFM）. The results indicated that nucleus/shell structural TiO2/HAP was formed in our experiments, and the thickness of the coating layer was about 5 nm. Photocatalytic decomposition of methyl orange was utilized to test the photocatalysis of the resulting samples and the result was compared with that of pure anatase titania powders （about 20 nm）. It was shown that the photocatalytic activity of the sample was not decreased due to the coating of HAP.