The various embodiments herein provide a nano silicon carrier as a drug delivery mechanism. The nano silicon carrier comprises a diatom frustules loaded with a drug molecule to be released at the target site. The diatom frustules are of Hannaea arcus and Navicula inflexa species of diatom. The pore size of the diatom frustules is 1 to 100 nm. The diatom frustules are comb-like in structure. The diatom frustules are in the form of powdered diatomaceous earth. The drug delivery mechanism described in the embodiments herein is a controlled release mechanism. The nano silicon carrier described in the embodiments herein is also used for delivery of pesticides and herbicides in plants. The nano silicon carrier described in the embodiments herein is also used in hormone waste water treatment.
