COX-2 RNA INTERFERENCE BY OLIGONUCLEOTIDES ON A NANOPLASMONIC CARRIER-BASED OPTICAL SWITCH (ONCOS) IN HEPATOCELLULAR CARCINOMA By Uzma Azeem Awan Regd. No. 2004-Gmdg-3517 Session 2012- 2015 Department of Biotechnology Faculty of Sciences University of Azad Jammu and Kashmir Muzaffarabad, Pakistan.