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Enhanced functionalities of biomaterials through metal ion surface modification
Yujie Tao1, Wayne Nishio Ayre2, Liming Jiang1
1School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China.
Frontiers in Bioengineering and Biotechnology
|April 29, 2025
Summary
Metal ions like zinc and copper enhance artificial biomaterials for bone repair by promoting bone growth and fighting infection. These materials offer promising clinical applications for bone defect regeneration.
Area of Science:
- Biomaterials Science
- Orthopedic Research
- Nanotechnology
Background:
- Bone defect repair is a significant clinical challenge.
- Metal ions (Zn, Cu, Mg, Ca, Sr, Ag, Ce) are crucial for bone regeneration.
- These ions promote osteogenesis, angiogenesis, and possess antibacterial properties.
Purpose of the Study:
- To review the mechanisms of metal ion-mediated bone tissue regeneration.
- To summarize methods for incorporating metal ions into biomaterials.
- To highlight clinical applications of metal ion-functionalized biomaterials.
Main Methods:
- Literature review of studies on metal ions in bone regeneration.
- Analysis of biochemical functions and effects of specific metal ions.
- Summary of metal ion loading techniques onto biomaterial surfaces.
Main Results:
- Metal ions promote osteogenesis and angiogenesis at appropriate concentrations.
- Zn, Sr, and Ce inhibit osteoclast activity, aiding osteogenesis.
- Cu, Mg, and Sr enhance angiogenesis; Zn, Cu, Ag, and Ce provide antibacterial effects.
Conclusions:
- Metal ion incorporation enhances biomaterial osteogenic and antibacterial properties.
- Functionalized biomaterials show potential for improved bone defect repair.
- Further clinical applications are anticipated for these advanced materials.
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