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Zhang Z, He D, Wang X, Ma X, Zheng Y, Gu X, Li Y. In vitro and in vivo evaluation of osteogenesis and antibacterial activity of MgGa alloys. Acta Biomater 2024:S1742-7061(24)00394-5. [PMID: 39025394 DOI: 10.1016/j.actbio.2024.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 07/06/2024] [Accepted: 07/11/2024] [Indexed: 07/20/2024]
Abstract
MgGa alloys are considered highly potential biodegradable materials, owing to its good mechanical properties and appropriate corrosion resistance. However, it is still far from application due to the lack of biological evaluation. In the present study, biocompatibility, osteogenesis and antibacterial activity of extruded Mg-xGa (x = 1 and 5 wt%) alloys were investigated by in vitro cell culture experiments and in vivo implantation. The cell adhesion and proliferation of osteoblast precursor cells (MC3T3-E1) showed the excellent cytocompatibility of Mg-1Ga and poor cytocompatibility of Mg-5Ga. The osteogenic activity was evaluated and revealed that Ga3+ in the Mg-1Ga extract had the ability to enhance osteogenic differentiation through the facilitation of its early stages. In vivo studies in a rat femoral condyle model revealed that both Mg-1Ga and Mg-5Ga significantly promoted new bone formation without causing any adverse effects. Mg-5Ga exhibited a much higher corrosion rate in vivo than Mg-1Ga. Its osteogenic activity was better due to the rapid release of Mg2+ and Ga3+, but this caused premature structural integrity loss. Mg-1Ga and Mg-5Ga released Ga3+ to inhibit E. coli and S. aureus, with antibacterial rate increasing with Ga content. Our studies demonstrate that Mg-Ga alloys have the potential to be used as osteogenic and antibacterial implant materials. STATEMENT OF SIGNIFICANCE: This study evaluates the biocompatibility, osteogenesis, and antibacterial activity of Mg-Ga alloys, which are promising biodegradable materials for medical applications. The study finds that Mg-1Ga exhibits excellent cytocompatibility and promotes osteogenic differentiation, facilitating the early stages of osteoblast precursor cell development. In vivo studies in a rat femoral condyle model reveal that Mg-1Ga and Mg-5Ga significantly promote new bone formation without causing any adverse effects. The antibacterial activity of both alloys is evaluated against E. coli and S. aureus, with the inhibition rate increasing with Ga content. These findings suggest that Mg-Ga alloys have the potential to serve as osteogenic and antibacterial implant materials, providing significant insights into the development of novel biomedical implants.
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Affiliation(s)
- Ziyue Zhang
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China; Hangzhou International Innovation Institute, Beihang University, Hangzhou 311115, China
| | - Donglei He
- Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China; State Key Laboratory of Tribology, Tsinghua University, Beijing, China
| | - Xueying Wang
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Xiaolong Ma
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Yang Zheng
- School of Aeronautics and Astronautics, Tiangong University, Tianjin 300387, China.
| | - Xuenan Gu
- School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Yan Li
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China; Hangzhou International Innovation Institute, Beihang University, Hangzhou 311115, China; Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing 100191, China.
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Patil AJ, Jackson O, Fulton LB, Hong D, Desai PA, Kelleher SA, Chou DT, Tan S, Kumta PN, Beniash E. Anticorrosive Self-Assembled Hybrid Alkylsilane Coatings for Resorbable Magnesium Metal Devices. ACS Biomater Sci Eng 2017; 3:518-529. [DOI: 10.1021/acsbiomaterials.6b00585] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Avinash J. Patil
- Department
of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 302 Benedum Hall, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
- Center
for Craniofacial Regeneration, University of Pittsburgh, 501 Salk
Pavilion, 335 Sutherland Drive, Pittsburgh, Pennsylvania15261, United States
- McGowan
Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology
Drive,Suite 300, Pittsburgh, Pennsylvania 15219, United States
| | - Olivia Jackson
- Department
of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 302 Benedum Hall, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Laura B. Fulton
- Department
of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 302 Benedum Hall, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Dandan Hong
- Department
of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 302 Benedum Hall, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
- Center
for Craniofacial Regeneration, University of Pittsburgh, 501 Salk
Pavilion, 335 Sutherland Drive, Pittsburgh, Pennsylvania15261, United States
- McGowan
Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology
Drive,Suite 300, Pittsburgh, Pennsylvania 15219, United States
| | - Palak A. Desai
- Department
of Biological Sciences, Dietrich School of Arts and Sciences, University of Pittsburgh, 4249 Fifth Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Stephen A. Kelleher
- Department
of Biology, Oberlin College, Science Center K123, 119 Woodland
Street, Oberlin, Ohio 44074, United States
| | - Da-Tren Chou
- Department
of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 302 Benedum Hall, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Susheng Tan
- Department
of Electrical and Computer Engineering, Swanson School of Engineering, University of Pittsburgh, 1238 Benedum Hall, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
- Petersen
Institute for NanoScience and Engineering (PINSE), University of Pittsburgh, Benedum Hall, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Prashant N. Kumta
- Department
of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 302 Benedum Hall, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
- Department
of Oral Biology, School of Dental Medicine, University of Pittsburgh, 347 Salk Hall, 3501 Terrace Street, Pittsburgh, Pennsylvania 15261, United States
- Center
for Craniofacial Regeneration, University of Pittsburgh, 501 Salk
Pavilion, 335 Sutherland Drive, Pittsburgh, Pennsylvania15261, United States
- McGowan
Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology
Drive,Suite 300, Pittsburgh, Pennsylvania 15219, United States
- Department
of Chemical and Petroleum Engineering, University of Pittsburgh, 940 Benedum
Hall, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Elia Beniash
- Department
of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 302 Benedum Hall, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
- Department
of Oral Biology, School of Dental Medicine, University of Pittsburgh, 347 Salk Hall, 3501 Terrace Street, Pittsburgh, Pennsylvania 15261, United States
- Center
for Craniofacial Regeneration, University of Pittsburgh, 501 Salk
Pavilion, 335 Sutherland Drive, Pittsburgh, Pennsylvania15261, United States
- McGowan
Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology
Drive,Suite 300, Pittsburgh, Pennsylvania 15219, United States
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Feng H, Wang G, Jin W, Zhang X, Huang Y, Gao A, Wu H, Wu G, Chu PK. Systematic Study of Inherent Antibacterial Properties of Magnesium-based Biomaterials. ACS APPLIED MATERIALS & INTERFACES 2016; 8:9662-9673. [PMID: 27043895 DOI: 10.1021/acsami.6b02241] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Magnesium-based materials are preferred in temporary orthopedic implants because of their biodegradability, mechanical properties, and intrinsic antibacterial properties. However, the fundamental mechanism of bacteria killing and roles of various factors are not clearly understood. In this study, we performed a systematic study of the antibacterial properties of two common Mg-based materials using a biofilm forming bacterium. Complete annihilation of the initial 3 × 10(4) bacteria is achieved with both materials in 0.1 mL LB medium in 24 h, whereas in the control, they proliferate to 10(10). The bacteria are killed more effectively in the solution than on the surface, and the bacteria killing efficiency depends more on the concentrations of the magnesium ions and hydroxyl ions than the corrosion rate. The killing process is reproduced using formula solutions, and killing is revealed to stem from the synergetic effects of alkalinity and magnesium ions instead of either one of them or Mg(OH)2 precipitate. Reactive oxygen species (ROS) are detected from the bacteria during the killing process but are not likely produced by the redox reaction directly, because they are detected at least 3 h after the reaction has commenced. The average cell size increases during the killing process, suggesting that the bacteria have difficulty with normal division which also contributes to the reduced bacteria population.
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Affiliation(s)
- Hongqing Feng
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Guomin Wang
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Weihong Jin
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Xuming Zhang
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Yifan Huang
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Ang Gao
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Hao Wu
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Guosong Wu
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Paul K Chu
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
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