Interaction of green nanoparticles with cells and organs

Abstract The existence and use of natural as well as artificial nanomaterials is widespread. This lead to concerns about their interaction with human cells. This chapter provides an overview that green synthesized nanomaterials having biomolecules on their surfaces will interact differently with human cells than nongreen nanomaterials. Depending on their surface molecules, they will interact differently with different organs and cells of human beings. Their internalization in the cells depends upon the cell types and cell receptors present on the cell surface. Due to biomolecules attached to their surfaces, these materials become highly biocompatible, soluble, nontoxic, site specific and highly stable in the human body. The applications of these nanomaterials also depend upon types of materials used in synthesizing, their surface coatings and subsequently, their mode of entry into the cells. These nanomaterials are having huge advantages over engineered nanomaterials.