Abstarct: Nowadays carbon baxsed Nano-structures have gained a lot of attentions to themselves due to their simple and cheap production methods. One of them which has studied widely in recent years is Graphene. Graphene with sp2 structure shows very fascinating properties of itself which have made this material suitable for a wide range of applications. In this thesis Graphene Nano-sheets have been synthesized through Hummers method. To approve the creation of these Nano-sheets variety of characterizations have been used namely; XRD, SEM, Raman and OM. To investigate one of electrical properties of this Nano-structures, gas sensing behavior of them has been studied after several evaluations about substrate type and also methods for continuous laxyer formation. Sensitivity of these sensors has been studied for several gases such as, Ammonia, Ethanol, and Acetone and in a novel case for Ethylene emitted from fruits. In this industrial case fabricated sensors showed very good response to the gas and it could be a key way to create a sensor for electronic noses. In another industrial application, hybrid composition of these Nano-sheets with Zinc Oxide has been made and used for UV light detection. Characterizations results of these Nano-sheets approved the quality of them and furthermore investigation of the applications showed a great potential of Graphene baxsed Nano-structures in a wide range of industrial applications.