1. Laboratory of Bioinorganic Chemistry, Faculty of Chemistry, University of Havana, Vedado, Havana 10400, Cuba, Center for Enzyme Technology, University of Matanzas, Matanzas 44740, Cuba, and Nanobiotechnology & Bioanalysis Group, Department of Chemical Engineering, Universitat Rovira i Virgili, Avinguda Països Catalans 26, Tarragona 43007, Spain