A Smart Bacteria-Capture-Killing Vector for Effectively Treating Osteomyelitis Through Synergy Under Microwave Therapy.

Autor: Ren J; School of Materials Science and Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China.; Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China.; School of Materials Science and Engineering, Peking University, Yi-He-Yuan Road 5#, Beijing, 100871, China., Qiao Y; School of Materials Science and Engineering, Peking University, Yi-He-Yuan Road 5#, Beijing, 100871, China., Jin L; School of Materials Science and Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China.; Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China.; School of Materials Science and Engineering, Peking University, Yi-He-Yuan Road 5#, Beijing, 100871, China., Mao C; Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China., Wang C; School of Health Science and Biomedical Engineering, Hebei University of Technology, Xiping Avenue 5340#, Tianjin, 300401, China., Wu S; School of Materials Science and Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China.; Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China.; School of Materials Science and Engineering, Peking University, Yi-He-Yuan Road 5#, Beijing, 100871, China., Zheng Y; School of Materials Science and Engineering, Peking University, Yi-He-Yuan Road 5#, Beijing, 100871, China., Li Z; School of Materials Science and Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China., Cui Z; School of Materials Science and Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China., Jiang H; School of Materials Science and Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China., Zhu S; School of Materials Science and Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China., Liu X; Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China.; School of Health Science and Biomedical Engineering, Hebei University of Technology, Xiping Avenue 5340#, Tianjin, 300401, China.
Jazyk: angličtina
Zdroj: Small (Weinheim an der Bergstrasse, Germany) [Small] 2024 Apr; Vol. 20 (15), pp. e2307406. Date of Electronic Publication: 2023 Nov 27.
DOI: 10.1002/smll.202307406
Abstrakt: Osteomyelitis caused by deep tissue infections is difficult to cure through phototherapy due to the poor penetration depth of the light. Herein, Cu/C/Fe 3 O 4 -COOH nanorod composites (Cu/C/Fe 3 O 4 -COOH) with nanoscale tip convex structures are successfully fabricated as a microwave-responsive smart bacteria-capture-killing vector. Cu/C/Fe 3 O 4 -COOH exhibited excellent magnetic targeting and bacteria-capturing ability due to its magnetism and high selectivity affinity to the amino groups on the surface of Staphylococcus aureus (S. aureus). Under microwave irradiation, Cu/C/Fe 3 O 4 -COOH efficiently treated S. aureus-infected osteomyelitis through the synergistic effects of microwave thermal therapy, microwave dynamic therapy, and copper ion therapy. It is calculated the electric field intensity in various regions of Cu/C/Fe 3 O 4 -COOH under microwave irradiation, demonstrating that it obtained the highest electric field intensity on the surface of copper nanoparticles of Cu/C/Fe 3 O 4 -COOH due to its high-curvature tips and metallic properties. This led to copper nanoparticles attracted more charged particles compared with other areas in Cu/C/Fe 3 O 4 -COOH. These charges are easier to escape from the high curvature surface of Cu/C/Fe 3 O 4 -COOH, and captured by adsorbed oxygen, resulting in the generation of reactive oxygen species. The Cu/C/Fe 3 O 4 -COOH designed in this study is expected to provide insight into the treatment of deep tissue infections under the irradiation of microwave.
(© 2023 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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