Silk fibroin coating on biometals: processing, anti-corrosion and biofunctionality.

Area of Science:

• Biomaterials Science
• Biomedical Engineering
• Materials Science

Background:

• Silk fibroin (SF) is a natural protein with excellent biocompatibility, making it suitable for biomedical applications.
• SF shows potential as a multifunctional coating for biometals, enhancing their performance and integration within the body.

Purpose of the Study:

• To comprehensively review the processing methods, anti-corrosion capabilities, and biofunctionalization strategies of silk fibroin coatings for biometals.
• To assess the effectiveness of SF coatings in improving the biological and electrochemical properties of metallic implants.

Main Methods:

• Review of existing literature on SF coating processing techniques.
• Analysis of studies evaluating the anti-corrosion performance of SF coatings in simulated body fluid.
• Examination of research on biofunctional SF coatings for enhanced osteogenesis, endothelialization, and antibacterial properties.

Main Results:

• SF coatings demonstrate significant corrosion resistance and self-healing properties in physiological environments.
• Biofunctionalization of SF coatings has successfully promoted osteogenesis, endothelialization, and antibacterial activity.
• The processing of SF coatings can be tailored to achieve desired functionalities for specific biomedical applications.

Conclusions:

• Silk fibroin coatings represent a promising strategy for developing advanced biometals with enhanced biocompatibility, corrosion resistance, and bioactivity.
• Further research into long-term in vivo performance, controlled degradation, and applications in implantable electronics is warranted.