1. Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece
2. Institute of Physics, University of São Paulo, 05508-090 São Paulo, Brazil
3. School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia
4. Department of Chemistry and Biochemistry, University of California, San Diego, 3234 Urey Hall, #0340, 9500 Gilman Drive, La Jolla, California 92093-0340, United States