- Enhanced Durability: Silica coatings provide a protective barrier against physical wear and chemical corrosion. - Improved Optical Properties: They can reduce light reflection and increase transmission, which is crucial for optical applications. - Biocompatibility: Silica is non-toxic and can be engineered to interact favorably with biological tissues. - Thermal Stability: Silica coatings can withstand high temperatures, making them suitable for high-temperature applications.