Interstellar Halogen and Biochemical Application of Halogen Bond in Living System

Certain compounds that consist of one halogen (F, Cl, Br, I or At) linked directly to a carbon atom, they are generally known as organo-halogens, they are present on the earth in abundance because they are largely manufactured through biological and industrial courses. Therefore, they have been suggested as bio-signature in the quest for life in the interstellar space. Less complex halogen hydrides have been identified in comets and astrochemical sources, nevertheless the occurrence and conceivable incorporation of advanced complex halides comprising compounds such as organo-halogens into planet developing or manufacturing region is undefined. This paper reviews the contribution of halogen bonding in biological systems and explores its potential applications in pharmacology, biomaterial development, and novel motifs for nucleic acids and protein engineering.