1. Nanobiosensors and Bioanalytical Applications Group – CIBER-BBN and Research Center on Nanoscience and Nanotechnology (CIN2) CSIC, 2 Nucleic acids Chemistry group – Institute for Research on Biomedicine (IRB Barcelona), IQAC-CSIC and CIBER-BBN, Barcelona and 3 Department of Chemical and Agricultural Engineering and Agrifood Technology. University of Girona, Girona, Spain