Nano rods | Image Resource : nanopartz.com

The nanorod is basically a concept that comes under the nano technology. Their dimensions are in the range of 1-100 nm. They can be made for both semiconducting materials and conductors. The length by division or the aspect ratio of these is basically 3-5. The formation process is very basic and they are made from the direct chemical synthesis. The different faces of the nano rods grow at different rates and thus, make an extended object. There are various applications of these rods in daily life. They are very handy as it comes about their usage.

One of the impending applications of nano rods is in the display machinery. This is possible because of the fact that the reflectivity of the rods can be varied by just altering the orientation with a practical electric field. One of the other useful applications is MEMS which stands for micro electro mechanical systems.

They can also be used as the theragnostic agents as their properties are quite flexible in nature. They are also used in the cancer therapeutics. The nanorods that are made using semiconducting devices are used in the light emitting devices and in energy harvesting.

There are various methods for the synthesis of these rods. Zinc oxide nano rods and gold nano rods are some of the synthesis process used. Cation exchange is an outdated but a very efficient way for nano rod synthesis. It is a shape conserving process. Complexities can also be added to these, using incomplete transformation.