Size and shape controlled nanoparticles synthesis in Water-in-oil microemulsion media: Examine the effect of water to surfactant mole ratio (W0), variation of head groups and chain length of surfactants and cosurfactants on the synthesised nanostructures. In addition with, investigate the potential of synthesised nanomaterials to the Pickering emulsion formation. Moreover the introduction of Pickering emulsion in different applied field.