**7. Future scope**

A handheld low cost ZnO based biosensor can be developed using Rasberry Pi so as to make the device more efficient and portable. Rasberry Pi is a low cost small sized device that are good for software applications. Using Rasberry Pi, task of maintenance of database will be reduced as it has its own storage capacity. Hence, look up tables of bovine, avian and caprine of more than five samples can also stored in Rasberry Pi. Besides this I also intend to design a same design for human being so as to save peoples from being affected by liver and kidney related diseases.
