Wormhole-like mesostructured monetite was successfully synthesized using cetyltrimethylammonium bromide (C19H42BrN, CTAB), as a porosity agent. X-ray techniques and FTIR reveal that the crystalline grains consist of highly crystalline pure monetite phase. Monetite rods with diameter around 20–40 nm and length in the range of 50–200 nm were confirmed by FESEM and TEM. Based on N2adsorption-desorption isotherms investigation, surface area increased up to 31.5 m2/g due to the removal of surfactant after calcinations at 400°C. The results indicate that CTAB can not only affect monetite crystallization but also change particles morphology from plate shape to rod-like.

Hydroxyapatite (HAp) particles, a potential starting material for bone substitutes, with nanopores were synthesized in the presence of cetyltrimethylammonium bromide (CTAB) and P123 as cationic and nonionic surfactants as the structuring units. Effect of nonionic surfactant concentration on surface areas is also investigated. Based on N 2 adsorption-desorption isotherms investigation, surface area increased up to 50 m 2 /g by using P123 and 147 m 2 /g by using CTAB as porosity agent. Pore structure remained even after the removal of surfactant and calcinations at 400 • C.

Arrangement, spatial configuration and chemical interactions of organic and inorganic elements in hybrid structures have led to the generation of various materials that range in size from nanometers to macrometers. In order to analyze the physical, chemical and also mechanical properties of these newly emerged compounds, a combination of different analytical techniques is necessary. This chapter provides a broad overview on the characterization strategies used to study the features of functional hybrid nanomaterials.