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Representative surface morphology and elemental mapping images of the Ternary filler group by SEM-EDX. (A) 1-CuBG-Si, (B) 5-CuBG-Si, (C) 10-CuBG-Si, (D) 15-BG, and (E) 15-Si. SEM-EDX images were taken after 28 days of experimental composites immersed in HEPES buffer (pH = 6.5), and the elements identified were silica (Si) in purple, phosphorous (P) in red, zinc (Zn) in green, copper (Cu) in blue, and calcium (Ca) in light blue. The scale bar corresponds to 10 µm in all micrographs.
