1. Department of Chemistry, College of Science, King Faisal University, P.O. Box 400, Alahsa 31982, Saudi Arabia
2. Department of Chemistry, Champlain College, 900 Riverside Drive, St-Lambert, QC J4P 3P2, Canada
3. Department of Biomedical and Chemical Engineering, College of Engineering and Computer Science, Syracuse University, 339 Link Hall, Syracuse, NY 13244, USA