J. Mater. Sci. Technol. ›› 2025, Vol. 232: 313-324.DOI: 10.1016/j.jmst.2025.01.044

• Research Article • Previous Articles    

Multivariant interfacial/ferroelectric/dipole polarization strengthened microwave-catalysis eradicates deep bacteria-infected osteomyelitis

Liguo Jina,b, Hanpeng Liub, Congyang Maoc, Chaofeng Wangd, Shuilin Wua,b,c,*, Khin Wee Laie,*, Yu Zhangf, Zhaoyang Lib, Shengli Zhub, Hui Jiangb, Zhenduo Cuib, Jie Sheng, Yufeng Zhenga, Xiangmei Liuc,d,*   

  1. aSchool of Materials Science & Engineering, Peking University, Beijing 100871, China;
    bthe Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science & Engineering, Tianjin University, Tianjin 300072, China;
    cHubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Materials Science & Engineering, Biomedical Materials Engineering Research Center, Hubei University, Wuhan 430062, China;
    dSchool of Health Science & Biomedical Engineering, Hebei University of Technology, Tianjin 300401, China;
    eDepartment of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, 57000, Malaysia;
    fDepartment of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China;
    gShenzhen Key Laboratory of Spine Surgery, Department of Spine Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
  • Received:2024-11-28 Revised:2024-12-30 Accepted:2025-01-12 Published:2025-10-10 Online:2025-03-18
  • Contact: * E-mail addresses: slwu@pku.edu.cn (S. Wu), Lai.khinwee@um.edu.my (K.W. Lai), liuxiangmei1978@163.com (X. Liu).

Abstract: Osteomyelitis is a state of inflammation caused by pathogens with progressive bone destruction. In critical conditions, osteomyelitis can result in limb necrosis, dysfunction, and permanent disability. Traditional treatments for osteomyelitis usually include antibiotics and surgical debridement. However, overuse of antibiotics can result in bacterial resistance and serious side effects. In this paper, a microwave (MW)-responsive composite MoS2/Bi2S3/BaTiO3 was constructed from flaky nanoflower molybdenum disulfide (MoS2), rod-shaped bismuth sulfide (Bi2S3), and bulk barium titanate (BaTiO3) for the ‌therapy of bacteria-infected osteomyelitis. Under MW irradiation, MoS2/Bi2S3/BaTiO3 could generate MW heat and reactive oxygen species (ROS), and its MW thermal response mechanism was investigated by MW vector analysis, which showed that the MW thermal response performance of MoS2/Bi2S3/BaTiO3 was devoted to the reflection loss, dielectric loss, and suitable impedance matching and attenuation constants induced by the interfacial polarization, dipole polarization, and ferroelectrode polarization. Under MW irradiation, due to strong electromagnetic field enhancement parameters and low oxygen adsorption energy, MoS2/Bi2S3/BaTiO3 could form a heterogeneous interface to accelerate charge transfer, resulting in ROS. The antibacterial mechanism of MoS2/Bi2S3/BaTiO3 was investigated by bacterial transcriptome RNA sequencing analysis, which indicated that MoS2/Bi2S3/BaTiO3 had excellent antibacterial properties.

Key words: Osteomyelitis, Molybdenum disulfide, Microwave catalysis, Antibacterial, Microwave therapy