What is a nanoparticle? A nanoparticle is a small structure of variable shape and size in nanometer range made out of tiny molecules or atoms. Due to their interesting properties, nanoparticles are widely synthesized in different shapes and sizes and applied in various fields including drug delivery in cancer treatment. Nanocomposites of suitable shape and size can be designed to carry a drug inside of it and that allows us to send that package to different places where we want that drug to go. Nanotechnology, the science of building small is changing the way we look at cancer more importantly the way we look at diagnosis and treatment. Nanotechnology allows researchers to build new tools that are actually smaller than cells giving them the opportunity to attack cancer at the cellular and genetic level. Nanotechnology not only enables health practitioners to detect cancer earlier but also holds the promise of stopping cancer before it even develops. This revolutionary approach is so pr