“…Silica is also used as host for the fabrication of a superparamagnetic composite material with particle-size dependent properties [4] . Metal nanostructures are often deposited within the pores of porous materials [5–7] to investigate the deposition process or for various applications. In the present work we report on the incorporation of various Ni nanostructures into the pores of porous silicon to achieve a magnetic/semiconducting composite.…”