Interface Polarization Strengthened Microwave Catalysis of MoS_2/FeS/Rhein for the Therapy of Bacteria-Infected Osteomyelitis

Liguo Jin; Xiangmei Liu; Yufeng ZhengZhaoyang LiYu ZhangShengli ZhuHui JiangZhenduo CuiPaul K. ChuShuilin Wu

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Interface Polarization Strengthened Microwave Catalysis of MoS_2/FeS/Rhein for the Therapy of Bacteria-Infected Osteomyelitis

机译：Interface Polarization Strengthened Microwave Catalysis of MoS_2/FeS/Rhein for the Therapy of Bacteria-Infected Osteomyelitis

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Staphylococcus aureus (S. aureus)-induced osteomyelitis is fatal to patients,even leading to death without timely debridement processing, which is difficultto be treated by antibiotics or phototherapy due to deep infections.Herein, a microwave (MW) assisted bacteria-killing strategy for treatingS. aureus-induced osteomyelitis by using MW-responsive molybdenumdisulfide (MoS2)/ferrous sulfide (FeS) heterojunction with anti-inflammatoryherb of rhein (Rhe) is reported. Under medical MW irradiation, MoS_2/FeS/Rhe effectively eradicates S. aureus-infected rat tibial osteomyelitis. The robusttherapeutic effects of MoS_2/FeS/Rhe are ascribed to the anti-inflammatoryeffect of Rhe, the enhanced MW thermal and dynamic effects of MoS_2/FeS.MoS_2/FeS is composed of S-Mo-S-Fe-S stacked layers sandwiched in betweenby weak Van Der Waals interactions, which means that ions or molecules canbe retained in the space between the layers. Under MW irradiation, dipoles orions are aligned in an oscillating electric field, which cause dipolar polarizationand ionic conduction, leading to molecular friction and dielectric loss to generateMW heat. In addition, the dipole orientation polarization caused by theinterfacial polarization of MoS_2/FeS is the main factor for microwave catalysis.This kind of MW responsive nanocomposite comprising inorganics and herbsmay solve the challenge of how to effectively treat deep tissue infections.

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《Advanced functional materials》 |2022年第33期|2204437.1-2204437.14|共14页
作者
Liguo Jin; Xiangmei Liu; Yufeng ZhengZhaoyang LiYu ZhangShengli ZhuHui JiangZhenduo CuiPaul K. ChuShuilin Wu;
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School of Materials Science & Engineering, the Key Laboratoryof Advanced Ceramics and Machining Technology by the Ministryof Education of ChinaTianjin UniversityYaguan Road 135#, Tianjin 300072, China,School of Materials Science & EngineeringPeking Univer;

School of Life Science and Health EngineeringHebei University of TechnologyXiping Avenue 5340#, Tianjin 300401, China;

School of Materials Science & EngineeringPeking UniversityYiheyuan Road 5#, Beijing 100871, China,Department of OrthopedicsGuangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesZhongshan 2nd Road 106#, Guangzhou 510080, ChinaSchool of Materials Science & Engineering, the Key Laboratoryof Advanced Ceramics and Machining Technology by the Ministryof Education of ChinaTianjin UniversityYaguan Road 135#, Tianjin 300072, ChinaDepartment of OrthopedicsGuangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesZhongshan 2nd Road 106#, Guangzhou 510080, ChinaDepartment of Physics, Department of Materials Science andEngineering, and Department of Biomedical EngineeringCity University of Hong KongTat Chee Avenue, Kowloon, Hong Kong 999077, China;

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正文语种英语
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antibacterial; microwave therapy; molybdenum disulfide; osteomyelitis; rhein;

Interface Polarization Strengthened Microwave Catalysis of MoS_2/FeS/Rhein for the Therapy of Bacteria-Infected Osteomyelitis

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