I want to know if I have fabricated some nanostructure and further I want to make a shell on the nanostructure by solution phase method by making it core-shell nanostructure. So, anybody can suggest me how to carry forward in this.
This is a very broad question, the answer will depend on the type of the nanostructures you've synthesized. Are they made up of inorganic materials or polymeric nanostructures? For inorganic nanoparticles, you can check the seeded-growth approach. For polymeric nanoparticles, you can form core/shell structure in one step.