1. Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
2. Department of Physics and Earth Sciences, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
3. Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
4. Dundalk Institute of Technology, Dundalk, County Louth, A91 K584, Ireland