1. Jacobs University, Department of Life Sciences and Chemistry, Campus Ring 1, 28759 Bremen, Germany
2. Jacobs University, Department of Physics and Earth Sciences, Campus Ring 1, 28759 Bremen, Germany
3. Universitat Rovira i Virgili, Departament de Química Física i Inorgànica, c/Marcel·lí Domingo 1, 43007 Tarragona, Spain
4. University of Balamand, Faculty of Arts and Sciences, P.O. Box 100, 1300 Tripoli, Lebanon