A nucleic acid is a complex, high molecular weight biochemical macromolecule which is composed of nucleotide chains that transfer the genetic information. The delivery of nucleic acid molecules into cells alter the physiological functions at the genetic level. It is one of the techniques used to treat inherited as well as acquired disorders. This technique is one of the common research tools to study about the genetic functions. The delivery of drugs and genes plays an essential part in regenerative engineering approaches to restore living tissue through integration of materials science and biochemical signaling.
Keywords: gene, biochemical signaling, nucleic acid, macromolecule.