Ibrahim Yahia Yaagoob, PhD, is a Post-Doctoral Fellow in the Department of Chemistry, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia, and is a member of the American Chemical Society (ACS). He has received national and international awards including the Ministry of Higher Education and Scientific Research Prize for an Excellent Academic Performance in Chemistry, awarded by Sudan Institute for Natural Sciences (SIFNS-2006). Chandrabhan Verma, PhD, is working at the Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates. He has received several national and international awards for his academic achievements.