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生物陶瓷材料具有良好的生物活性、生物相容性、耐磨性以及耐腐蚀性等,在医学、生物化学等领域得到广泛关注和应用。采用incoPat专利数据库对生物陶瓷材料全球专利的申请趋势、地域分布、创新主体、技术热点等进行全面分析。结果表明,全球生物陶瓷材料专利申请量总体呈现增长态势;美国、德国和日本是该领域的技术创新强国,而中国是近五年最大的技术来源国与目标市场国。国外的创新主体以强生、义获嘉伟瓦登特、登士柏西诺德等龙头企业为主导,涉及技术领域较广,如人工膝关节、牙科修复体和整形外科植入物等;而国内的创新主体以四川大学、浙江大学和上海硅酸盐研究所等高校和科研院所为主,主要研究复合生物陶瓷、纳米陶瓷和羟基磷灰石等。近五年生物陶瓷材料出现了新技术热点,如骨组织3D打印、治疗癌症的生物活性陶瓷和血管支架等,可为我国生物陶瓷材料从业者提供研究方向。 相似文献
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生物陶瓷材料及其发展动态 总被引:4,自引:0,他引:4
对羟基磷灰石生物陶瓷材料、磷酸钙生物陶瓷材料、复合生物陶瓷材料、涂层生物陶瓷材料和氧化铝生物陶瓷的研究进展情况做了较为深入的探讨,并提出了生物陶瓷材料发展方向。 相似文献
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生物陶瓷涂层材料发展概况 总被引:1,自引:0,他引:1
本文对国内外生物陶瓷涂层材料的发展情况进行了综合评述。着重介绍了在金属基材上热喷涂羟基磷灰石(HAP)研究和应用的进展情况。文中还讨论了影响生物陶次涂层材料性能的主要因素。 相似文献
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生物陶瓷由于具有良好的生物相容性、骨传导特性、与细胞的亲和性、耐腐蚀性、热稳定性及机械性能,在口腔医学领域具有广泛的应用前景。本文对羟基磷灰石生物陶瓷、氧化锆生物陶瓷、氧化铝生物陶瓷、碳化硅陶瓷、生物玻璃及其相关应用技术在口腔医学领域的最新研究进展进行了综述,并给出了生物陶瓷在口腔医学领域的发展趋势。 相似文献
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1、引言羟基磷灰石[Ca_(10)(PO_4)_6(OH)_2]是一种磷酸钙材料,其晶体结构,化学成份,物化性能都与正常人的齿、骨相似。以羟基磷灰石作为人造齿、骨材料,具有良好的生物相容性。植 相似文献
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电子陶瓷材料发展现状与开发趋势 总被引:1,自引:0,他引:1
对电子陶瓷系统中的绝缘材料、介电材料、压电材料与离子导体材料的研究进展进行了综合评述。指出了电子陶瓷材料及其生产工艺的研究动向和开发趋势。 相似文献
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Soon-Ho Kwon Youn-Ki Jun Seong-Hyeon Hong In-Seop Lee Hyoun-Ee Kim Ye Yeon Won 《Journal of the American Ceramic Society》2002,85(12):3129-3131
Porous bioceramics, such as hydroxyapatite (HA), tricalcium phosphate (TCP), and biphasic HA/TCP, were fabricated using the polyurethane sponge technique. The porosity of the ceramics was controlled by a multiple coating of the porous body. When a porous body was produced by a single coating, the porosity was ∼90%, and the pores were completely interconnected. When the sintered body was coated five times after the porous network had been made, the porosity decreased to 65%. As the porosity decreased, the strength increased exponentially. The TCP exhibited the highest dissolution rate in a Ringer's solution, and the HA had the lowest rate. The biphasic HA/TCP showed an intermediate dissolution rate. 相似文献
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Fuzeng Ren Kefeng Wang Bi Wang Xiong Lu Yang Leng 《Journal of the American Ceramic Society》2016,99(12):4107-4112
Porous bioceramics have been widely studied for bone tissue engineering. A deep understanding on the mechanism of bone growth and biomineralization depends on the extracted interface information between the new precipitated calcium phosphates (CaPs) and the porous substrate at a nanometer scale. However, due to their intrinsic brittleness and the complexity of the sample shape, there is still lack of such information. Here, by a combination of focused ion beam (FIB) and transmission electron microscopy (TEM), in‐situ cross‐sectional electron transparent interface was prepared. The precipitated dense apatite layer is composed of individual microgranules which further consist of tiny flake‐like crystals. The new crystallites grow along c‐axis and are mostly oriented perpendicular to HA substrate. This preferred orientation is more pronounced in the presence of protein. This work offers a novel and feasible approach using FIB‐TEM to in situ image porous bioceramic scaffold and precipitated apatite layer interface and can be extended to study many other biointerfaces. 相似文献
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简述了稀硫酸浓缩的意义、原理,对比分析了常见浓缩方法的浓缩范围、优缺点、适用对象。结合实例讨论了几种最新的浓缩新工艺,并预测改进优化现有浓缩装置,利用低温位余热作热源及开发浓缩低浓度酸将会是下阶段稀硫酸浓缩的发展趋势。 相似文献