无机材料学报 ›› 2022, Vol. 37 ›› Issue (9): 983-990.DOI: 10.15541/jim20210659

• 研究论文 • 上一篇    下一篇

光/磁热Fe2SiO4/Fe3O4双相生物陶瓷及其复合电纺丝膜制备及抗菌性能研究

盛丽丽1,2(), 常江1,2()   

  1. 1.中国科学院 上海硅酸盐研究所 高性能陶瓷与超微结构国家重点实验室, 上海 200050
    2.中国科学院大学 材料与光电研究中心, 北京 100049
  • 收稿日期:2021-10-25 修回日期:2022-12-24 出版日期:2022-09-20 网络出版日期:2022-01-24
  • 通讯作者: 常 江, 研究员. E-mail: jchang@mail.sic.ac.cn
  • 作者简介:盛丽丽(1992-), 女, 博士研究生. E-mail: lilissic@163.com
  • 基金资助:
    国家重点研发计划(2016YFC1100201);上海市科学技术委员会项目(19441902300)

Photo/Magnetic Thermal Fe2SiO4/Fe3O4 Biphasic Bioceramic and Its Composite Electrospun Membrane: Preparation and Antibacterial

SHENG Lili1,2(), CHANG Jiang1,2()   

  1. 1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
    2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2021-10-25 Revised:2022-12-24 Published:2022-09-20 Online:2022-01-24
  • Contact: CHANG Jiang, professor. E-mail: jchang@mail.sic.ac.cn
  • About author:SHENG Lili (1992-), female, PhD candidate. E-mail: lilissic@163.com
  • Supported by:
    National Key Research and Development Program of China(2016YFC1100201);Funding of Science and Technology Commission of Shanghai Municipality(19441902300)

摘要:

兼具抗菌和组织修复活性的生物材料在再生医学领域具有广阔的应用前景。以光热和磁热为基础的热疗技术都具有抗菌作用, 但光的穿透能力有限, 磁热试剂的热转换效率较低, 限制了其在生物医学领域的应用。本研究合成了Fe2SiO4/Fe3O4双相复合生物陶瓷粉体, 不仅同时具有良好的光热和磁热效应, 还能有效释放活性的铁和硅酸根离子。用陶瓷粉体与明胶/聚己内酯复合制备的电纺丝膜不仅具有良好的细胞相容性, 而且具有光热和磁热效应。复合膜在相对温和的条件下近红外光(808 nm, 0.36 W·cm-2)与交变磁场(506 kHz, 837 A·m-1)同时处理15 min后, 与单独近红外光或磁场热处理相比, 具有更强的细菌抑制活性。因此, 这种集光热、磁热功能于一体且具有细胞相容性的Fe-Si基生物陶瓷及其复合材料在再生医学领域具有潜在的应用前景。

关键词: Fe, 硅酸盐, 双相生物陶瓷, 静电纺丝, 抗菌性能

Abstract:

Biomaterials with both antibacterial and tissue repair activity have promising applications in the field of regenerative medicine. Both photothermal and magnetothermal-based techniques have antimicrobial effects, but the limited penetration capacity of light and the low thermal conversion efficiency of magnetothermal reagents limit their applications in biomedical fields. Here, we synthesized Fe2SiO4/Fe3O4 biphasic composite bioceramic powders, which not only display good photothermal and magnetothermal effects, but also effectively release active Fe and silicate ions, and prepared electrospun membranes by combining ceramic powders with gelatin/polycaprolactone, which not only exhibit good cytocompatibility, but also, importantly, possess both photothermal and magnetothermal properties. The composite membranes, under conditions of being irradiated with near-infrared light (808 nm, 0.36 W·cm-2) and placed in alternating magnetic field (506 kHz, 837 A·m-1) for 15 min simultaneously, are able to inhibit bacterial activity more effectively than the thermal treatment with near-infrared light or magnetic field alone. Therefore, this Fe-Si-based bioceramic and its composite material with photothermal, magnetothermal, antimicrobial, and biocompatible properties, have potential application in the field of regenerative medicine.

Key words: Fe, silicate, biphasic bioceramic, electrospun, antibacterial

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