Dr Anees Ansari is presently associate professor in King Abdullah Institute for Nanotechnology at the King Saud University, Riyadh Saudi Arabia. He completed his PhD from Jamia Millia Islamia, New Delhi, India. Dr Ansari worked as a postdoctoral research associate in Department of Chemistry, University of Delhi and National Physical Laboratory, New Delhi. His research work includes fabrication of nanostructured metal oxide based electrochemical biosensors, luminescent lanthanide nanomaterials for biomedical applications. He is author one book four book chapters and more than 70 research articles.