1. Graduate Nanotechnology Program, School of Sciences & Engineering, The American University in Cairo, 11835 New Cairo, Egypt
2. Department of Chemistry, School of Sciences & Engineering, The American University in Cairo, 11835 New Cairo, Egypt
3. Department of Chemistry, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, New Capital, Cairo 11835, Egypt
4. Department of Nanobiophotonics, Leibniz Institute for Photonic Technology, Albert Einstein Str 9, Jena 07745, Germany