中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (8): 1952-1961.doi: 10.12307/2026.604

• 水凝胶材料Hydrogel materials • 上一篇    下一篇

三种比例双相磷酸钙的制备及性能表征

邵子瑜1,2,李  倩1,2,曲曼姑丽·阿布都克力木1,2,韩友军1,2,胡  杨1,2   

  1. 1新疆医科大学第一附属医院(附属口腔医院)口腔修复种植科,新疆维吾尔自治区乌鲁木齐市  830054;2新疆维吾尔自治区口腔医学研究所,新疆维吾尔自治区乌鲁木齐市  830054
  • 收稿日期:2025-02-19 接受日期:2025-05-06 出版日期:2026-03-18 发布日期:2025-07-16
  • 通讯作者: 胡杨,副主任医师,副教授,新疆医科大学第一附属医院(附属口腔医院)口腔修复种植科,新疆维吾尔自治区乌鲁木齐市 830054;新疆维吾尔自治区口腔医学研究所,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:邵子瑜,男,1999年生,天津市人,在读硕士,主要从事口腔修复种植学研究。
  • 基金资助:
    新疆维吾尔自治区重点研发任务专项项目(2016B03049-2),项目负责人:胡杨;上海宝山区卫生健康委员会科研课题项目[BSZK-2023-BP02(01)],项目参与人:胡杨

Preparation and characterization properties of three different ratios of biphasic calcium phosphate

Shao Ziyu1, 2, Li Qian1, 2, Qumanguli·Abudukelimu1, 2, Han Youjun1, 2, Hu Yang1, 2   

  1. 1Department of Oral Restoration and Implants, First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatological Hospital), Urumqi 830054, Xinjiang Uygur Autonomous Region, China; 2Xinjiang Uygur Autonomous Region Institute of Stomatology, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Received:2025-02-19 Accepted:2025-05-06 Online:2026-03-18 Published:2025-07-16
  • Contact: Hu Yang, Associate chief physician, Associate professor, Department of Oral Restoration and Implants, First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatological Hospital), Urumqi 830054, Xinjiang Uygur Autonomous Region, China; Xinjiang Uygur Autonomous Region Institute of Stomatology, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Shao Ziyu, Master candidate, Department of Oral Restoration and Implants, First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatological Hospital), Urumqi 830054, Xinjiang Uygur Autonomous Region, China; Xinjiang Uygur Autonomous Region Institute of Stomatology, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Supported by:
    Xinjiang Uygur Autonomous Region Key Research & Development Task Special Project, No. 2016B03049-2 (to HY); Shanghai Baoshan District Health Commission Scientific Research Project, No. BSZK-2023-BP02(01) (to HY)


摘要:

文题释义:
双相磷酸钙:是由羟基磷灰石和磷酸三钙两种磷酸钙基生物陶瓷组成且与天然骨矿化程度高度相似,具备与天然骨骼成分高度相似的生物和物理特性,并展现出优秀的生物相容性和良好的机械力学性能。
性能表征:是对材料的化学成分、内部微观结构及原子排列状态和材料基本属性的检测与分析技术,包括传统的显微镜分析、X射线衍射分析、电子能谱分析等先进方法。

背景:目前,临床实践中广泛使用的根管封闭剂存在生物相容性较差和降解性不佳的缺点。
目的:制备以聚乙烯醇为黏合剂的纳米羟基磷灰石和β-磷酸三钙双相磷酸钙复合材料,表征复合材料的性能。
方法:将15%聚乙烯醇水凝胶分别与不同比例的纳米羟基磷灰石与β-磷酸三钙(纳米羟基磷灰石与β-磷酸三钙的质量比分别为30∶70,40∶60,50∶50)混合,采用冷冻干燥法制备双相磷酸钙/聚乙烯醇复合材料,同时制备30%纳米羟基磷灰石/聚乙烯醇复合材料、30% β-磷酸三钙/聚乙烯醇复合材料。采用扫描电子显微镜、X射线能量色散谱仪器、X射线衍射仪、X射线光电子能谱技术、傅里叶红外光谱表征各组复合材料的理化性能,采用万能力学试验机检测各组复合材料的机械力学性能。
结果与结论:①扫描电镜及X射线能量色散光谱观察到双相磷酸钙/聚乙烯醇复合材料中的纳米羟基磷灰石与β-磷酸三钙呈团簇状聚集在一起,并且C、O、Ca、P元素分布均匀;②双相磷酸钙/聚乙烯醇复合材料X射线衍射、X射线光电子能谱、傅里叶红外光谱结果显示,聚乙烯醇与纳米羟基磷灰石和β-磷酸三钙成功混合,未出现化学结构的变化;③5组复合材料的压缩极限强度与弹性模量比较差异均无显著性意义(P > 0.05),其中双相磷酸钙(40∶60)/聚乙烯醇复合材料的弹性模量最大。
https://orcid.org/0009-0000-5500-906X(邵子瑜)

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料;口腔生物材料;纳米材料;缓释材料;材料相容性;组织工程

关键词: 双相磷酸钙, 羟基磷灰石, β-磷酸三钙, 聚乙烯醇, 根管封闭剂, 机械力学性能

Abstract: BACKGROUND: Root canal sealers, which are widely used in current clinical practice, still have the disadvantages of poor biocompatibility and poor degradability.
OBJECTIVE: To prepare nanohydroxyapatite and β-tricalcium phosphate biphasic calcium phosphate composites with polyvinyl alcohol as the binder and characterize the properties of the composites.
METHODS: 15% polyvinyl alcohol hydrogel was mixed with different proportions of nanohydroxyapatite and β-tricalcium phosphate (the mass ratio of nanohydroxyapatite to β-tricalcium phosphate was 30:70, 40:60, and 50:50, respectively). Biphasic calcium phosphate/polyvinyl alcohol composites were prepared by freeze drying. 30% nanohydroxyapatite/polyvinyl alcohol composites and 30% β-tricalcium phosphate/polyvinyl alcohol composites were prepared at the same time. Scanning electron microscope, X-ray energy dispersive spectroscopy, X-ray diffractometer, X-ray photoelectron spectroscopy, and Fourier infrared spectroscopy were used to characterize the physical and chemical properties of each group of composites. The mechanical properties of each group of composites were studied by universal mechanical testing machine. 
RESULTS AND CONCLUSION: (1) Scanning electron microscopy and X-ray energy dispersive spectroscopy showed that nanohydroxyapatite and β-tricalcium phosphate in the biphasic calcium phosphate/polyvinyl alcohol composites were clustered together, and the C, O, Ca, and P elements were evenly distributed. (2) X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy results of the biphasic calcium phosphate/polyvinyl alcohol composites showed that polyvinyl alcohol was successfully mixed with nanohydroxyapatite and β-tricalcium phosphate without chemical structure changes. (3) There were no significant differences in the ultimate compressive strength and elastic modulus of the five groups of composites (P > 0.05), among which the elastic modulus of the biphasic calcium phosphate (40:60)/polyvinyl alcohol composite was the largest. 


Key words: biphasic calcium phosphate, hydroxyapatite, β-tricalcium phosphate, polyvinyl alcohol, root canal sealer, mechanical property

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