FUNTIONALISED NANOPARTICLE FOR SENSOR APPLICATION DISSERTATION SUBMITTED FOR PARTIAL FULFILLMENT FOR THE DEGREE OF MASTER OF SCIENCE IN CHEMISTRY (2017-2019) SUBMITTED BY ARKAPRIYA DAS Enrolment no. - 399612 Exam Roll no. - 17419CHE018 H.O.D - Prof. D. S. Pandey Supervised by - Prof. Ida Tiwari Department of Chemistry Institute of Science Banaras Hindu University