FIGURE 2.

Characterization of different modified nano‐hydroxyapatite (HA). (A) Analysis of functional groups in different modified HA using FTIR. (B) EGCG connection rate in HA‐EGCG and KH‐HA‐EGCG nanoparticles. (C) Electronic photographs of HA‐EGCG and KH‐HA‐EGCG nanoparticles. (D) Left: Scanning electron micrograph of KH‐HA. Right: KH‐HA particle size analysis. (E) Left: Scanning electron micrograph of HA‐EGCG. Right: HA‐EGCG particle size analysis. (F) Left: Scanning electron micrograph of KH‐HA‐EGCG. Right: KH‐HA‐EGCG particle size analysis. Data are presented as the mean ± SD, ***p < 0.001. EGCG, epigallocatechin‐3‐gallate; FTIR, Fourier‐transform infrared