Preparation of pore expanded mesoporous hydroxyapatite via auxiliary solubilizing template method

- CTAB and TMB were used as soft template and pore expanding agent, respectively.
- Average length of the as-synthesized HAp nanoparticles is 50-150 nm.
- Large amount of mesoporous spread around the surface of mesoHAp nanorods.
- The shape of mesopores was elongated and opened at both extremities.
- Pore diameter of mesoHAp was up to 15 nm, indicating the pore enlargement of TMB.